Gui based iphone app development simple työt
Description: We are seeking an experienced web developer to create a dropshipping website that integrates with BigBuy, among other dropshipping platforms. The site must be functional, visually appealing, and designed to maximize sales conversions. Website Features and Requirements: Simple and Intuitive Interface: Clean design and intuitive navigation for an excellent user experience. Dropshipping Supplier Integration: Ability to easily integrate with BigBuy and other popular dropshipping platforms such as AliExpress and Oberlo. Payment System: Support for multiple payment methods including credit cards, PayPal, and local payment methods. SEO Friendly: Optimized for search engines to ensure good online visibility. Mobile Friendly: Fully responsive, ensuring functionality on mobile ...
As an individual currently working on Android Studio, I require a seasoned Android Studio developer. The tasks include, but are not limited to: - Assisting with project completion - Fixing prevalent bugs - Incorporating a simple, aesthetically pleasing UI design This project places great emphasis on Android Studio, thus expert knowledge and experience in this field are necessary. Key features of the project include: - User login/authentication - Database integration - Push notifications I am looking for a developer with a keen eye for detail, along with substantial experience in developing reliable, high-quality Android applications. Your portfolio should demonstrate a strong and diverse range of past projects.
We are a digital marketing company seeking an experienced web developer to create a web application with functionalities similar to Buffer. Our goal is to enable users to schedule posts on various social media platforms and manage them from one place. Required Skills: Experience in developing web applications. Proficiency in programming languages such as JavaScript, HTML, CSS. Ability to work with web frameworks such as React, Angular, Vue.js, etc. Familiarity with working with APIs of social media platforms like Facebook, Twitter, Instagram, LinkedIn, etc. Understanding of data security and user privacy concerns. Ability to work in a team and communicate effectively with other members of the project team. Application Functionalities: Scheduling posts on various social media platforms, ...
...looking for a skilled 3D visualizer to help me create detailed models that will be integral in the prototyping and testing phase of our product development. Key Responsibilities: - Develop 3D models with moderate detailing and textures, prioritizing functionality without compromising on visual appeal - Collaborate with our product development team to ensure the models accurately represent our vision and technical requirements - Provide revisions and adjustments as necessary throughout the prototyping and testing phase Ideal candidate: - Proficient in 3D modeling software like Blender, Maya, 3ds Max, etc. - Prior experience in product development visualization, particularly for prototyping purposes - Strong attention to detail and ability to balance functionality w...
I need a simple project. 1. Visitor goes to website and presses scan. 2. Script checks inside area of their PC for file. 3. If their return result file found, if not file not found. That’s it
I'm in need of a reliable and experienced web developer to create a robust property management site for my company. The website will primarily serve as a platform for managing owner buildings, so applicants with a background in real estate. It should have certain key features including: - Tenant Screening, Rent Collection, Property Maintenance and Repairs, Financial Reporting, Lease Enforcement, Emergency Response, Legal Compliance, Tenant Relations, Vacancy Management, Financial Management, Legal Support, Technology Solutions & Asset Management. Freelancers with a solid understanding of these elements, and a track-record of delivering effective solutions, are highly encouraged to bid. Your expertise will be critical to this project's success.
I'm looking for a web developer to create an e-commerce website for me. The primary purpose of the site is to sell digital products. It's crucial that the site includes secure payment processing with Stripe Connect platform, as this will be a marketplace. Key requirements: - Development of an e-commerce website - Focus on digital product sales - Implementation of Stripe Connect platform for secure marketplace transactions Ideal skills and experience: - Proficient in e-commerce web development - Extensive experience with Stripe integration, ideally with Stripe Connect - Understanding of secure payment processing I'm looking for a professional who can deliver a reliable, secure, and user-friendly e-commerce website. Please share your relevant experience and p...
...is searching for a talented Senior Full Stack Web Developer to join our Buyer Experience/e-Commerce team. You'll be joining a multi-functional team that builds and design's Atlassian's core web experience across our e-commerce platform on , and more. Our team has a substantial impact on the growth of Atlassian, and we're committed to pushing current trends in web development in order to create a cutting-edge experience across our brand. What you'll do • Work with a talented team of UX experts (Product Managers, Designers and Developers) to continually iterate and improve the experience of our internal and external users. • You will be empowered to drive innovation by coming up with new and exciting ideas to creatively solve issues, as well...
I'm looking for an experienced video editor to work on a 5-10+ minute video. I built a log cabin and have 1,000 iphone videos and a few thousand related images that cover the two year build. I have a couple ideas for the storyline, the goal is to try to monitize the video on YouTube, perhaps with a corresponding campaign on Instagram and/or TikTok Key Tasks: - Trimming and cutting footage: The video needs to be concise and engaging, so we're looking for someone who has a good eye for what to keep and what to cut. - Adding background music or sound effects: The video is meant to be fun and upbeat, so the music and sounds should reflect that. - Including text, voice and transitions: To keep the video engaging and easy to follow, text, voice and transitions should be adde...
I'm looking for a skilled web developer to create a student collaboration platform for our university. The main features this platform should include are document sharing, group chat, and project management tools. Essential requirements: - Strong experience in using PHP and JavaScript - Understanding of student collaboration platforms - Ability to design and develop effective and user-friendly interfaces - Experience in creating similar web projects Please share your relevant experience and provide examples of similar projects you have worked on in your proposal. You should be able to understand the needs of a diverse group of students and work towards creating a platform that enhances their collaboration and learning experience.
I'm seeking a skilled developer to create a with all features including coin staking feature, vip membership feature and project scoring feature, Also News section, refer coinofficial (for staking and news feature idea) . Please feel free to propose any programming languages or frameworks you believe are best suited for this project. Your suggestions will be greatly appreciated.
...various marketplaces. The concept is simple: users visit our site, select their desired marketplace and product, then complete the purchase on our platform. Key Features: - Seamless Integration: Our site seamlessly integrates with major marketplaces like Amazon. - Automated Purchases: Once a user selects a product, our site automatically processes the purchase. - Dynamic Pricing: The site detects the user's country, calculates delivery costs, and adds a commission. - Dropshipping Model: We do not import products; instead, we display them directly from the marketplace page using iframe HTML tags. We prefer to build the site using WooCommerce or WordPress for flexibility and ease of management. **Requirements:** - Proficiency in WooCommerce/WordPress development. - ...
I'm in need of an IT specialist to help me create a comprehensive Transportation Management System (TMS) for my Freight Brokerage business. The TMS should have the following functionalities: - Load Management: Ability to manage and track the transportation of goods effectively. - Carrier Management: A system to efficiently manage carriers and streamline the process of assigning them to loads. - Financial Management: An integrated financial module to track costs and profits associated with shipments and carriers. User-Friendly Interface: I am looking for a system that is user-friendly and easy to navigate. This is particularly important for my team to quickly adapt and use the system effectively. Real-Time Shipment Tracking: Having the ability to provide real-time tracking f...
I'm in need of a skilled developer to help me complete a couple of tasks for a public website. - Bitcoinkiteslights: I'm looking for someone who can code customizable lighting patterns, integration with API and remote control capabilities. This involves programming the kites to have unique and customizable lighting effects, allowing the user to interact with them via a remote control, and connecting them to an external API. - Deposit Button: I also need a deposit button integrated into the website, to allow users to easily deposit funds. I'd prefer the button to be compatible with PayPal, Stripe and Square. Ideal skills and experience for this job would include: - Proficiency in JavaScript, Python and Ruby - Experience with hardware programming, particularly customizabl...
conduct a Pre-Employment Vetting Software Development at the university of Panama
...Project Details/ Order Flow required: We require a custom order flow for a bakery delivery service based in the UAE. No apps have project successful so we require a custom option using the Ecomify theme. Order flow needs to go as follows. - Customers build their breakfast delivery bundle using a bundle maker. - customer then needs to pick their delivery days of the week, this must be flexible. - customer then checks out using a weekly subscription app, which also needs to be flexible. - delivery should only be available in certain locations in Abu Dhabi Store not launched yet and is designed using the Ecomify Theme Ideal Skillset: - Proven expertise in Shopify theme development - Previous experiences in checkout optimization - Adept in minimalist design con...
I am in search of a qualified freelance developer with experience in creating software for human resources or related fields. The project at hand involves creating a software solution for a comprehensive pre-employment vetting process, specifically focused on background checks. The developed software should be able to facilitate: • Comprehensive Background Checks: The software should have the capability to conduct general background checks on potential hires. • Criminal Record Check: A specific function should cater to conducting checks on applicants' criminal records. • Employment Verification: The software should possess a feature that verifies previous employment records. • Education Verification: There should be a function verifying the educational quali...
...create a versatile iOS note-taking app. The primary goal of the app is to provide a comprehensive platform for text formatting, creating, saving, and printing notes. Your main tasks will include: - Implementing essential text formatting features like bold, italic, and underline. - Enabling users to insert various elements such as images, tables, graphs, and backgrounds. - Customizing fonts and other text styles. - Providing options for saving notes in various formats like pdf, txt, rtf, and doc. - Incorporating a seamless printing functionality. To be successful in this project, you should have a strong background in iOS app development, particularly in the context of note-taking and text formatting. Proficiency in tools like Flutter or native iOS develo...
Note : my budget for whole project is 20$ Project Overview : developing a web-based game that leverages the ChatGPT API to generate unique scenarios and tasks for players. The game will offer personalized experiences with secret objectives that contribute to a collective goal. **Game Flow Implementation:** 1. **User Registration and Profile Creation:** - Players sign up and create profiles. - Each player is assigned a unique identifier (UUID) for tracking. 2. **Scenario Generation:** - At the start of a session, the backend sends a request to the ChatGPT API. - The API returns a scenario that sets the context for the game. 3. **Task Generation:** - Based on the scenario, the backend formulates tasks for each player. - Tasks are personalized using p...
The deliverable is the files associated with a Large Language Model (LLM) Retrieval Augmented Generation (RAG)-based chatbot, the full-page chat interface screen, and the miniature chat interface. This job does not include deployment of the files to the production system. A demonstration of the chatbot and its capabilities will be provided upon completion of the project. The chatbot will limit itself to agreed upon topics/information and can handle several conversation turns (i.e., will maintain a temporary chat log per interaction for conversation flow). The chatbot will also be configured to store all chat logs locally. The chatbot will make use of an information store, so domain- and county-specific data will be available. Files will be documented in case of future modificati...
...allows for a user-friendly experience. Key Project Requirements: - **Design**: Need assistance in creating a visually appealing and easy-to-navigate design. - **Content Categories**: The site should support different blog topics, including Lifestyle, Fashion, and Tech. - **Content Management**: A CMS that allows for easy creation and scheduling of posts on a weekly basis. Ideal Skills: - Web Development: Proficiency in developing websites, particularly blog sites, is essential. - UI/UX Design: Experience in designing attractive and user-friendly interfaces. - CMS: Familiarity with content management systems to ensure easy content updates. - SEO: Understanding of basic SEO principles for optimal visibility of the blog. If you have a creative eye, have worked on similar proje...
I need an expert Android app developer to turn my already-designed flowchart into a fully functioning application. Please Read the attachment. My budget is not more than 40000 INR
Note : my budget for whole project is 20$ Project Overview : developing a web-based game that leverages the ChatGPT API to generate unique scenarios and tasks for players. The game will offer personalized experiences with secret objectives that contribute to a collective goal. **Game Flow Implementation:** 1. **User Registration and Profile Creation:** - Players sign up and create profiles. - Each player is assigned a unique identifier (UUID) for tracking. 2. **Scenario Generation:** - At the start of a session, the backend sends a request to the ChatGPT API. - The API returns a scenario that sets the context for the game. 3. **Task Generation:** - Based on the scenario, the backend formulates tasks for each player. - Tasks are personalized using p...
I'm in need of an app developer who can create a messaging app similar to WhatsApp & twitter . The app should include the following features: - Group Chats: Users should be able to create and participate in group conversations. - Voice and Video Calls: The app should support both voice and video calling. - File Sharing: Users should be able to share files of various formats and sizes. I'm looking for a professional who can develop this app for me at a reasonable cost. Please provide a quote along with your proposal. Experience in developing messaging apps, particularly with the features mentioned, will be highly appreciated.
I'm seeking a skilled mobile application developer to create a social networking app with a clean, minimalist aesthetic. This app should deepen digital relationships through two core functionalities: 1. In-App Messaging: Enable real-time communication among users. Experience in creating intuitive, accessible messaging systems is crucial. 2. Web Conferencing Application Integration: Enable users to jump seamlessly into video calls, mirroring the physical interactions yet to replace. Suitable candidates should have experience integrating external APIs, particularly video conferencing ones. Proficiency in creating a streamlined, user-friendly interface is a must, given this app's minimalist design approach. Creativity in using minimalistic design elements ...
I need Crypto market making bot which is generate Volume without any loss. I need python code means I can run on AWS cloud. I have one code if you do changes on that then that's also Okay for me.
Website development work You need to provide the Domain, Hosting, content and the images. While working on the website if we need any paid plugin then you have to buy that from your side . You also need to buy the theme which you have shared to start the work
I have a game i have created already with a team un UNITY. I would like to find someone who is able to do screen share calls with me and we will go through all the project files and you will teach me how everything in unity is functioning as well as the files themselves. Once complete you will guide me on making changes within the code. I will pay $5 an hour. You will need to be under an NDA agreement. I have some understanding of unity and C#. You will first download the game and play it so you get an understanding of it then ask me any questions you may have before we start. You will be paid bi weekly for hours tracked. You must have extensive experience in UNITY and publish to the android/IOS store.
I'm in need of a detail-oriented specialist to perform data entry on textual content that's already well-organized. Key Tasks: - Accurate entry of textual data into Excel format - Pace of work should be efficient without compromising the quality - Ensure a smooth transition of data, maintaining its organization Ideal Skills and Experience: - Previous experience in data entry jobs would be beneficial - Proficiency in Excel - Excellent attention to detail - Ability to handle data in an organized manner - Good command of English language to understand textual data.
I need some help with coding a small iPadOS app that is only intended for internal testing/use using the SwiftUI language. The app needs all of its code reviewed (about 10 views) to make sure it is working appropriately and efficiently. I have a couple more features I would like the app to have, but don’t have the skill to incorporate them: - searching (CoreData represented in tables and lists) - filtering and sorting SwiftUI tables - generating pdf forms via a wizard or questionnaire that will ask the user for answers to specific questions for the form (e.g., placeholders in a form template: name, date, etc.) and an ability to share these generated pdfs from the share sheet - batch adding a set of reminders to a specific reminder list using EventKit (and being...
I need a proficient PHP developer to custom-build an Enterprise Resource Planning (ERP) software. This software should ideally include functionalities that cover the entire operation of a business: - Inventory Management - Accounting system - Human Resource Management - CRM - Project Management - Scrum This ERP system needs to be scalable, supporting an unlimited number of users. It is important that it can accommodate business growth without necessitating major system changes or upgrades. I'm looking for a professional with experience in building ERP systems, a strong understanding of business processes, and proficiency in PHP. Given the urgency of this project, I require someone who can deliver quality work promptly. As such, the ability to meet strict deadlines without compromi...
I am looking for a highly skilled fintech team with expertise in blockchain technology, payment processing, and digital wallet development. - **Skills and Experience:** The ideal team will be well-versed in building secure and efficient digital wallets for multiple platforms, namely iOS, Android, and Web platforms. Proficiency in implementing blockchain technology and understanding of payment processing systems is a must. - **Design Expectations:** For the wallet design, I am leaning towards a minimalist design approach - clean, simplistic yet functional. This project will require a blend of technical skills, creativity, and understanding of current fintech trends, making it an excellent and challenging opportunity for professionals in the field.
I'm looking for a talented video editor to help with creating a captivating 10-20 seconds video intro for my new book. As the author, I have certain key aspects in mind that could be incorporated, however, I did not define whether it should be animated, live action, or a combination. Your creative input will be greatly welcomed. Ideal Skills: - Video editing - Animation (preferably, but not mandatory) - Creative thinking - Understanding of book themes Experience: - Portfolio of previous video intros or similar projects - Reviews or references validating previous work quality and reliability. Please review the book here:
I'm looking for an experienced mobile app developer who can create a functional Android app that emphasizes a user registration and login system. This project centers around creating a user-friendly system that makes registering and logging in seamless for the user. Key Requirements: - Expertise in Android app development. - Can design a user-friendly interface. - Has experience in developing secure user registration and login systems. - Familiarity with relevant protocols and standards for user data security. - Excellent troubleshooting and communication skills. If you can demonstrate previous work with similar Android apps, your application will stand out. I look forward to seeing your proposals.
As the client of this project, I'm on the lookout for an experienced developer who is capable of crafting a telegram bot that operates based on a 'refer and earn' model. Key Responsibilities: 1. Determine Best Programming Language: As I'm uncertain about the best-fit programming language for my project, you are given the flexibility to choose between Python, JavaScript and Ruby, based on your expertise and the bot's needs. 2. Required Functionality: I'm not certain about all the functionalities needed yet. Hence, I expect you to suggest essential attributes during development, keeping in mind a bot that can handle referrals efficiently and incorporate an earning system. 3. Bot Purpose: The primary purpose of this bot is to encourage...
...Google accounts. 2. Developing a tailored home page: - The homepage should dynamically display filtered content based on the user type. We will have three distinct user types and the filtered content must reflect their needs and preferences. However, the specifics of this filtered data is yet to be defined. 3. Designing a user preference form: - A form should be incorporated to harvest key user preference information that will later be used to personalize user experience. 4. Documentation and Diagrams: - The project also calls for the creation of comprehensive documentation, including but not limited to workflows and UML diagrams. Skills and Experiences: - Web development skills - Familiarity with Google login integration - Experience with UI/UX design - Pro...
I'm looking to enhance my Shopify store's B2B functionality by integrating two essential features from Sparklayer: - "Quick Buy" Page: This will substitute our current List view, enabling clients to quickly see prices and make bulk orders without navigating through individual product pages. (example is visible in another installed theme) - 'Unit Cost' Display on Product Page: Prices need to be shown in kilograms and automatically sync with Shopify's unit pricing, factoring in base price and dynamic calculations. (example code: ) Ideal candidate should have: - Proven experience with Shopify theme customization - Knowledge of B2B eCommerce solutions - Familiarity with Sparklayer integration - Fluency in JavaScript, HTML/CSS, and Liquid - Ability to imple...
In order to improve our ecommerce operations, we are looking to have an Android OMS (Order Management System) app developed that is similar in function to the WISDOM OMS (). Key Features and Objectives: - The primary goal of this project is to develop an efficient system for order processing, inventory management and customer relationship management. - The app should include specific features to streamline order processing, namely: - Real-time order tracking - Automated order confirmation emails - Integration with shipping carriers App Design: - As for the app design, we have no specific requirements or preferences given at this time. However, focusing on ease of use and functionality should be a priority. Ideal Candidates: - Developers
I'm looking for a skilled web designer and developer to create a professional website for my Homecare company. Our primary goal is to provide information about our services and company. Target Audience: - The website should cater predominantly to elderly individuals, who are seeking quality homecare services. Key Features Required: - Accessible Design: It's crucial that the website is designed with the needs of elderly users in mind, ensuring that it's easy to navigate and understand. - Detailed Service Descriptions: The website should provide comprehensive information about our services, helping visitors understand the full range of care options we offer. - Contact Form: An interactive contact form should be included to allow potential clients and partners to reach out t...
אני מחפש מפתח אפליקציות אנדרואיד מיומן ליצירת פלטפורמת חנות אפליקציות אנדרואיד בקנה מידה קטן. המטרה העיקרית של פלטפורמה זו היא לספק למשתמשים גישה למבחר של כ-10 יישומים להורדה. יש לפתח את האפליקציה בשפת JAVA בלבד. יש לספק לי את קוד המקור לשימוש אישי ולשינויים עתידיים. תכונות עיקריות: 1. מערכת רישום ואימות: • המשתמשים יידרשו להירשם באמצעות שמם המלא וכתובת האימייל שלהם בלבד. • האימות יתבסס על סיסמה חד פעמית (OTP) שנשלחה לכתובת הדוא"ל שסופקה על ידי המשתמש. • יושמו מנגנוני אימות חזקים כדי להגן מפני ניסיונות מעקפים והזרקות זדוניות. 2. מנוי שנתי: • תהליך ההרשמה יכלול תשלום באמצעות כרטיס VISA עבור מנוי שנתי. • תוקף המנוי יהיה לשנה ממועד הרכישה. 3. פונקציונליות נוספת: • למשתמשים עם מנוי פעיל תהיה אפשרות להוריד אפליקציות מהחנות לאחר אימות מוצלח. ...
...front end and prototype of my crypto Wallet and NGO app I am seeking an experienced freelancer capable of developing a front-end prototype for a crypto wallet app. Below are the main requirements for this project: - Android OS compatible: The app needs to be designed specifically for Android users. - Functionalities: The app should be able to track cryptocurrency prices, store various types of cryptocurrencies, and incorporate security features such as two-factor authentication. - Cryptocurrency Support: The app should particularly be able to support BSC (Binance Smart Chain) cryptocurrency. Ideal candidate would have experience in Android development, cryptocurrency applications, and a strong understanding of security features in app...
I urgently need a tech-savvy website developer to overhaul my existing site and an expert to manage Google Search Engine Marketing. The selected freelancer should be ready to: • Redesign the current site layout. • Amp up site performance • Integrate specific new functions including: - Google address auto complete - Lead automation Required Expertise and Skills: • Proven experience in site performance tweaking • Confirmed track record in site layout design • Experience with automation and integration of Google address auto-complete • Expertise in integrating new lead automation with a CRM system The integration of the lead automation into my CRM system is of utmost importance. I am looking for someone with a knack for creating engaging and user-f...
...creation of themes and plugins. Ideally, you'll focus a bit more on theme development during our learning sessions. Key requirements for this project include: - Developing a custom theme for my website. - Crafting a bespoke plugin to enhance site functionality. - Teaching me the ins and outs of theme development in WordPress. Your role would involve not only hands-on development but also coaching me through the process so I can gain a deeper understanding of WordPress theme creation. I'm at an intermediate level with WordPress, so your ability to explain complex ideas in a clear and concise manner will be much appreciated. Ideal skills for this job would include: - Proficiency in WordPress theme and plugin development. - Strong knowledge of Wor...
Need Website changes () 1. In our website add seperate sitemap page & for seo purpose when added new jobs new pages automatically updated on sitemap page. 2. When publish new job OR new CMS page automatically share to social media (Twitter, Facebook, Linkedin & Instagram) 3. On Blog page add Keyword Tags option like wordpress site, Keyword Tags will be display on bottom of the blog individual pages.
We are seeking a remote administrative professional to daily post job listings on LinkedIn. Key Responsibilities: - Daily job posting on LinkedIn, One job post per day. - Ensuring all necessary details and requirements are included Ideal Skills: - Strong administrative background - Excellent written communication skills - Detail-oriented with a focus on consistency This Task is easy and simple only takes few mins per day, also good for those who are starting out as freelancers and want to build their profile. We will provide all the necessary steps to follow so anyone can apply.
...clients specifically from the Information Technology sector for our software and website development services. Key Tasks: - Make cold calls to potential clients in the IT sector to introduce our services - Execute email marketing campaigns targeted towards this sector - Attend relevant networking events to promote our offerings The main objective behind acquiring new clients is to boost revenue. The ideal candidate should have: - Proven experience in B2B sales, specifically in the IT industry - A strong sales track record with verifiable results - Excellent cold calling and email marketing skills - Experience in networking and building relationships - Understanding of software and website development industry is a plus - Strong communication and negotiation skills ...
I'm seeking a skilled professional to develop a private GPT for customer support. Key Features Required: - 24/7 Availability: This is a crucial aspect of the system a...Multilingual Support: The GPT should be able to effectively communicate in multiple languages. - Integration with Existing Systems: It's important for the GPT to be able to seamlessly integrate with our existing systems to provide a cohesive support experience. Expected Queries: - General Inquiries - Technical Support - Product Information I require a developer who has substantial experience in GPT development and a solid understanding of customer support systems. Your ability to implement key features, such as 24/7 availability, multilingual support, and system integration, will be crucial for the succ...
In this project, I am seeking a knowledgeable professional to develop a web-based PowerApps with approval workflow. Key functions: - Database and document architecture - Customer form development and product cataloging - Features to calculate cost and revenue for products - Options to upload multiple attachments - Categorize based on status Desired workflow should streamline decision making and efficaciously automate our business process. Ideal Skills and Experience: - PowerApps development - Experience in designing database and complex document architectures - Familiarity with Approval workflows - Prior experience with web-based platforms - Strong understanding of business process automation Your proposal should include a high-level strategy tha...
I need a skilled professional to develop a robust e-commerce website for my business. Requirements: - E-commerce Focus: The website will primarily serve as an e-commerce platform. - Payment Integration: I'd like the site to accept credit card and PayPal payments. - Product Categories: The site will have less than 5 product categories.
