Offline Custom List App Development

@KESHAVINFOTECH

Hi There, 1.I need a cross-platform mobile application built for both Android and iOS... ==> We got the idea about your fully offline and customizable list application. It is a great concept. We have done similar types of other projects in the past. In one project, we added a special feature where users could create a field that automatically calculated its value using a formula based on other number fields in the list. We will make sure the search and filtering are instant, and the app supports all the features you listed like data export and automatic totals. Implementing the UI for both Light and Dark modes and full Arabic RTL support is something we are very comfortable with and can do perfectly. We understand the entire application needs to work without internet. ## Queries : 1. When a user defines a custom list structure with different fields, can they save this structure as a template to reuse for making similar new lists later? ## Initial Project Structure : - Splash - Home (Dashboard with all lists) - Create/Edit List Template - List View (Showing all items of a list) - Add/Edit Item Form - Settings - Export Options We use advanced AI tools (Cursor, Claude, ChatGPT) to speed up coding and reduce manual work hours. We pass these time-savings to you, providing a high-quality app at a very competitive price. Waiting for your reply. :-) Regards, Ghanu & Samir. KESHAV INFOTECH

@pinkeegupta

Hi I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. Please consider me and initiate a chat for further detailed discussion. Regards, Anju

@GameOfWords

Offline Custom List App Development I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.

@AnumFatima210

Hello, I came across your project Offline Custom List App Development and I am very interested in working with you. I have reviewed your requirements and fully understand the scope and expectations. I specialize in PHP, Mobile App Development, iPhone, Android, App Design, UI / User Interface, iOS Development, App Development and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity, and professionalism. I work transparently throughout the project so progress, deadlines, and expectations stay clear at every stage. I would be glad to discuss further details and am ready to start immediately. Looking forward to hearing from you. Regards, Anum

@anirudhat

Building a fully offline, bilingual list app with custom field types is exactly the kind of project I specialize in. I'll use React Native with SQLite for robust local storage, ensuring every feature—reminders, search, sorting, exports—works without connectivity. For barcode capture, I'll integrate react-native-camera with ML Kit for fast, reliable scanning. Localization will be architected from day one using i18next with full RTL layout mirroring for Arabic, not bolted on afterward. I can start immediately and would suggest three milestones: core data engine with custom fields, UI/UX with search and filtering, then exports and polish. Estimated investment is $3,500–$4,500 depending on your final feature matrix. Let's connect to align on specifics.

@shivam981994

Hi, This is interesting. Since everything has to work fully offline, the main focus will be how we structure local storage from day one. If that part is solid, the rest becomes straightforward. I’d probably go with Flutter for true cross-platform consistency, using local SQLite for structured lists and custom fields. That way text, numbers, images, dates, dropdowns — all stay flexible. Barcode scanning can be handled directly through the device camera using a stable library, no server needed. Search, sorting, totals — all computed locally. Notifications will use native local scheduling so reminders work even in airplane mode. Exports (PDF/Excel/CSV) can be generated directly from the device storage. One thing I’d like to confirm: Do you expect users to store very large lists, or mostly normal-size datasets? If scope is clear, we can move fast. I can break it into clean milestones once you share the detailed matrix. Best Regards, Shivam

@Ak230598

Hello, I CAN DO THIS. I have 6.5+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.

@Ahmedyar547005

Hey , I just went through your job description and noticed you need someone skilled in App Design, UI / User Interface, Mobile App Development, App Development, iPhone, Android, iOS Development and PHP. That’s right up my alley. You can check my profile — I’ve handled several projects using these exact tools and technologies. Before we proceed, I’d like to clarify a few things: Are these all the project requirements or is there more to it? Do you already have any work done, or will this start from scratch? What’s your preferred deadline for completion? Why Work With Me? Over 180 successful projects completed. Long-term track record of happy clients and repeat work. I prioritize quality, deadlines, and clear communication. Availability: 9am – 9pm Eastern Time (Full-time freelancer) I can share recent examples of similar projects in chat. Let’s connect and discuss your vision in detail. Kind Regards, Zain Arshad

@proggon

Hey there, I understand you're looking to develop a cross-platform mobile application that allows users to create highly customizable, offline lists, suited for various purposes from to-do tasks to inventories. Your vision for robust functionalities, such as instant search, sorting, and bilingual support, is clear, and I’m excited about the opportunity to bring this project to life. To achieve your goals, I propose using React Native for seamless cross-platform performance, ensuring an attractive UI that adapts smoothly between light and dark modes. For data management, I would implement SQLite for local storage, allowing for quick retrieval and manipulation of user-generated lists without needing internet access. We can integrate QR and barcode scanning capabilities using libraries suitable for mobile applications. For localization, I'll carefully design the UI components to ensure an optimal experience for both English and Arabic users. I will provide regular updates to meet your timeline efficiently while ensuring that all code and builds are handed over as per your requirements. Could you clarify if you have any specific design preferences in mind? https://www.freelancer.com/u/proggon Best regards, Wahaj Barlas.

@jonhw5

Hello, thanks for posting this project. I will deliver a cross‑platform offline app for Android and iOS that lets users define fully customizable, field-rich lists with text, number, image, date, dropdown, checkbox, and barcode capture. The solution runs entirely offline, with local SQLite data storage, encrypted where possible, and a lightweight syncable export-only path if needed. Core features like instant search, multi‑level sorting, field filtering, automatic numeric totals, and local notifications are implemented without a server. One-tap exports to PDF, Excel, and CSV, and the UI supports Light/Dark modes with a responsive bilingual layout (English LTR / Arabic RTL) including mirrored layouts. Local barcode scanning will be integrated via the device camera with robust permission handling. Localization will be handled through a centralized i18n system with right-to-left layout mirroring and accessibility considerations. The architecture will ensure full source ownership and ready-to-publish builds. What are your top priority data types and export formats for the initial release, and do you have any preferred cross‑platform framework for this offline-first app? Technical approach: chosen stack will prioritize performance and offline reliability, favoring a cross‑platform framework (e.g., Flutter or React Native) with a local data store (SQLite/Realm) and a modular architecture for field types, export, and reminders. Barcode integration will use the device camera and

@syedraza21295

Hello, I have extensive experience in PHP and Mobile App Development. I have carefully reviewed your project requirements for the development of a cross-platform mobile application that allows users to create customizable offline lists with various field types. My approach will involve utilizing React Native for cross-platform development, implementing SQLite for offline data storage, integrating barcode scanning functionality using a library like react-native-camera, and incorporating localization support for English and Arabic. I will ensure a rapid development timeline to meet your immediate needs. As a versatile Designer & Developer, I specialize in branding and digital solutions, offering expertise in UI/UX design, CMS development, and custom web solutions. Let's discuss further in chat to delve into the project details. Best regards, Syed

@SherozKhalid9

Hello there, I will build a cross-platform Android and iOS mobile app using a single shared codebase that supports fully customizable, offline-first lists with dynamic fields (text, number, image, date, dropdown, checkbox, barcode), real-time search/sort/filter, and a safe preview/confirmation flow for exports and reminders. This way all data, logic, and notifications work reliably without internet access, with zero risk of sync loss or hidden dependencies. I’ll use a proven offline architecture (local database + reactive state), native camera barcode scanning, and device-level notifications so reminders remain accurate even after restarts. The UI will be minimalist, fast, and accessible, with seamless Light/Dark modes and full English LTR + Arabic RTL layout mirroring from day one. Exports to PDF, Excel, and CSV will be generated locally, ensuring privacy, speed, and full data ownership. You’ll receive clean, well-documented source code and ready-to-publish store builds. Questions: 1. Should users be able to define formulas for numeric totals (e.g., sums by filter), or is column-level auto-sum sufficient? 2. For offline backups, do you prefer manual file export only, or optional local device backup/restore? 3. Are there any barcode standards (EAN, QR, custom formats) that must be prioritized? If this aligns with what you need, I can start right away. Let’s discuss via chat. Best regards, Khalid

@apkblack17

As an accomplished Fullstack Developer specialized in mobile and web applications, especially those with a significant emphasis on offline functionality, I firmly believe I'm the ideal match for your custom list app project. My direct work with various ERP, payroll, inventory management systems, as well as PoS applications, has given me ample exposure to build the kind of fully offline functionality you require. In terms of technical approach, we could leverage Flutter, since it allows for cross-platform development while still delivering native-like performance. For storing the data offline, I would suggest using SQLite or Hive DB; both are excellent options for lightweight storage and don't require constant internet connectivity. Adding barcode integration from device camera within the app can be seamlessly achieved using Flutter's community plugins like barcode_scan or QR_code_scanner. My experience in developing multilingual applications would lend itself particularly well to your project's bilingual support requirement. I have previously implemented RTL language layout mirroring successfully and can do the same here for Arabic language compatibility. As for the timeline and budget, I will need more detailed insights to provide a precise analysis. Rest assured, however, that my leaning towards efficient and scalable solutions ensures time effectiveness without compromising quality or functionality. In conclusion, should you choose to entrust me with this project, not only will you be working with a skilled developer but someone genuinely dedicated to delivering an elegant solution tailored to your specific needs. Let our collaboration breathe life into your unique customized list app idea that's robustly functional even in an offline environment yet offers remarkable user-friendliness and modern design aesthetics. Let’s get started!

@zeeshanmomin722

Hi, I understand the need for a cross-platform mobile application that allows users to create customizable, offline lists efficiently. With 6 years of experience in mobile app development, I can provide a solution that meets your requirements with functionality including instant search, multi-level sorting, and barcode integration. I will use React Native for cross-platform compatibility, SQLite for local offline storage, and integrate device camera functionalities for barcode scanning. For the user interface, I'll ensure a modern, minimalist design with bilingual support in English and Arabic, following proper layout mirroring. My strategy ensures all functionalities, like reminders and data exports, run smoothly without an internet connection. Best regards, Zeeshan

@hrsydv27

i, I can build your fully offline cross-platform app using Flutter, delivering smooth performance on both Android and iOS from a single clean codebase. Technical Approach: Stack: • Flutter (latest stable) • Feature-based clean architecture • 100% offline-first design Offline Data Strategy: • SQLite (Drift) for structured local storage • Dynamic schema to support custom fields (text, number, image path, date, dropdown, checkbox, barcode) • Indexed queries for instant search, multi-level sorting & filtering • Local aggregation for automatic numeric totals Barcode Integration: • Camera-based barcode scanning using offline decoding • Store barcode as structured field data Notifications: • flutter_local_notifications • Fully offline reminders • Scheduled alerts that persist after reboot Export: • Local PDF generation • Excel (.xlsx) creation • CSV export • Native share support Localization: • Full English (LTR) + Arabic (RTL) • Proper layout mirroring • Dynamic direction switching • Light/Dark mode support Deliverables: • Complete Flutter source code (full ownership) • Ready-to-publish Android & iOS builds • Clear build documentation Suggested Milestones: Dynamic list engine Search/sort/filter + totals Barcode + reminders Export + bilingual polish I specialize exclusively in Flutter and offline-first architecture. If you need a fast, scalable solution delivered cleanly, I’m ready to begin immediately. ?

@ABDoffice

Hi, I can build your fully offline cross-platform app using Flutter with a single codebase for Android and iOS. Technical approach: Local database (SQLite) Custom dynamic fields (text, number, image, date, dropdown, checkbox, barcode) Instant search, sorting, filtering Automatic numeric totals Local notifications (offline) Export to PDF, Excel, CSV Full Light/Dark mode Complete English (LTR) + Arabic (RTL) support with layout mirroring You receive: Full source code ownership Ready-to-publish builds for both stores Available within $50–100 budget (scope aligned accordingly). Ready to start.

@PrateekP3003

Hi There! I have gone through your project description that you need a cross-platform mobile application for Android and iOS that enables fully offline, customizable lists with multi-type fields (text, number, image, date, dropdown, checkbox, barcode), instant search, filtering, automatic totals, reminders, and one-tap exports. Right? I AM GLAD TO TELL YOU THAT I’ve already developed similar offline-first productivity apps with flexible field types, PDF/Excel/CSV exports, barcode scanning, and bilingual support. I am ready to help you immediately to build your end-to-end offline lists app with features like – Offline Data & Core Functionality: Local database (SQLite or Realm) for fast queries, sorting, filtering, and totals Full offline reminders and notifications without server dependency UI/UX & Customization: Modern, minimalist interface with Light/Dark modes Proper English LTR and Arabic RTL layout mirroring Exports & Barcode Integration: One-tap export to PDF, Excel, CSV Device camera barcode scanning integrated seamlessly I recommend Flutter for cross-platform performance, smooth UI, and RTL support, with SQLite/Drift for offline storage and performant queries. I have 7+ years of experience in mobile app development and can deliver full source code, builds ready for TestFlight and Play Store, along with documentation. SEND MESSAGE/CHAT, so we can discuss technical approach, milestones, and timeline for ASAP delivery… Thanks & Regards, Prateek

@michaler1

Drawing from my extensive experience in developing cross-platform mobile applications with a deep understanding of user experience design, I am the ideal choice to fulfill your offline custom list app development project. In my 8 years as a freelance developer, I've built robust apps embracing multiple frameworks including React and Angular. Coupled with a keen eye for minimalist, modern UI design and knowledge of TailwindCSS, I promise to deliver an app that not only meets your technical requirements but also has the aesthetics to keep users engaged. One of the cornerstones of your project is its capability to operate entirely offline. Here, my strength in backend engineering ensures that your application has a solid ground when it comes to offline CRUD functionalities and storage. What's more, my expertise in API integrations and automations will enable seamless data transfer when online. In terms of your preferred timeline, I am confident in delivering within your ASAP target without compromising on scalability or efficiency. My deep appreciation for performance optimization will ensure your app runs swiftly, regardless of the size of the inventory or volume of the data. Completing the package is my transparent cost breakdown with suggested milestones, which allows us to stay on track throughout the project execution. Let's work together to bring your vision for this efficient, bilingual application to life!

@edwards414

Hello, With a strong foundation in mobile app development for both Android and iPhone platforms, I am well-suited to deliver the grain of detail that your custom list application demands. My proficiency spans across a broad range of core functions that you seek - including multi-function sorting, instant search, offline reminders, and versatile data export features. What sets me apart is my comprehensive understanding of the importance of simplifying complex processes. Your requirement for a customizable, offline-capable to-do list application underscores the need for an integrated approach. My skills as both an AI Engineer and designer allow me to streamline intricate functionalities without compromising on user experience or visual appeal. As such, I can provide you with practical solutions and intuitive designs that enhance your app's core functionality. Moreover, my experience as a data engineer can be instrumental in implementing robust offline data strategies and barcode integration systems - crucial features required by your project. Localization is another niche where I have excelled - already ascertaining Arabic RTL support. I embrace realistic timelines, transparancy and taking true ownership of my work. Together, we can deliver an exceptional product that fits the bill perfectly. Let's discuss milestones and cost-breakdown in more detail to ensure we are aligned on this important mission. Thanks!