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Looking for Full-Stack Developer + Growth Marketer for AI Health App – Budget $700 We're building STO, an AI-powered personal health assistant that creates personalized weekly routines (gym, nutrition, meditation, life score). The app is live at [login to view URL] and built on Base44 (React frontend + integrated backend). ────────────────────────── WHAT WE NEED ────────────────────────── 1. TECHNICAL (Frontend / Full-Stack) • Export and clean up the React codebase from Base44 • Migrate backend to Supabase (auth, database, API calls) • Deploy on Vercel with custom domain • Fix UI bugs and improve mobile responsiveness • Integrate OpenAI or Claude API for the AI features 2. MARKETING & GROWTH • Set up and run Meta Ads campaigns (Instagram/Facebook) targeting health & wellness audience in Spain • Set up Google Ads (Search campaigns) for keywords like "app salud digital", "rutinas personalizadas IA" • Create 2–3 ad creatives (copy + basic visuals) • Weekly performance report ────────────────────────── REQUIREMENTS ────────────────────────── • Experience with React, Supabase, Vercel • Proven Meta Ads + Google Ads campaigns (share results) • Spanish-speaking preferred (target market is Spain/LATAM) • Available to start within 1 week ────────────────────────── BUDGET & TIMELINE ────────────────────────── • Total budget: $700 (fixed price) • Timeline: 3–4 weeks • Milestone-based payment preferred Please apply with: ePortfolio or relevant projects Example of a Meta/Google Ads campaign you managed (results) Your proposed breakdown of the $700 budget between dev and marketing This is a long-term opportunity — if results are good, we want to keep working together.
Project ID: 40449477
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144 freelancers are bidding on average €516 EUR for this job

As a Frontend/Full-Stack developer and Growth Marketer, I reckon I am perfectly suited for your AI Health App project. Over 18 years, my enterprise CnELIndia has consistently delivered innovative, on-time and budget-friendly projects, availing a stellar reputation amongst our 743 clients. Our proficiency in technologies spanning PHP, WordPress, WooCommerce - not to mention our particular expertise in React Native make us an excellent match for this project. On the technical front, I possess comprehensive knowledge of React and have ample experience migrating backends like yours to Supabase. We can optimize the app by cleaning up the existing codebase and advancing mobile responsiveness for a smooth user experience. Don't worry! My plan includes integrating OpenAI or Claude API for the AI features as you desire, ensuring your app is unique and stands out from your competitors. When it comes to marketing and growth strategy, I am skilled at running campaigns on Meta Ads as well as Google Ads. Being fluent in Spanish adds another layer of advantage since we can emphasize precision targeting of health & wellness audiences in Spain/LATAM. Upon completion of milestones, I 'll ensure to deliver detailed performance reports so that we can make data-driven adjustments and continuously enhance the growth of your outstanding health app moving forward.
€500 EUR in 7 days
9.0
9.0

SKIP.
€250 EUR in 28 days
8.7
8.7

Hi — Elias here from Miami. The real challenge in building an AI health app is ensuring seamless integration between the AI backend and the mobile front-end, while securely managing user data in compliance with health regulations. The architecture must support real-time data processing and provide reliable AI-driven insights without compromising performance. A common failure in systems like this is inadequate handling of state management and permissions. Scalability issues can arise if the architecture does not anticipate user growth or if caching strategies are poorly implemented. Additionally, mobile-specific constraints on iOS and Android can complicate API interactions and user experience. I would approach this by designing a microservices architecture that allows for independent scaling of AI components and the mobile app. Using robust frameworks for API development ensures clear communication between services. For the mobile layer, leveraging React Native or Flutter can streamline cross-platform development while maintaining performance. The hardest decision early is likely the choice of the AI model and how to optimize it for real-time use without sacrificing accuracy. This involves trade-offs between model complexity and processing speed. What strategies do you envision for user engagement and retention in this app? I look forward to discussing this further.
€700 EUR in 5 days
8.5
8.5

Hi there, I specialize in Full-Stack Development and Growth Marketing for AI-powered apps. With experience in React, Supabase, and Vercel, I can seamlessly handle the technical requirements for your STO app. Additionally, my expertise in running successful Meta and Google Ads campaigns aligns with your marketing needs. I'm fluent in Spanish and can start within a week. Let's discuss how I can elevate your app's performance and user engagement. Looking forward to collaborating for long-term success. Thank you.
€350 EUR in 3 days
8.3
8.3

Hello, I am a full-stack developer and digital marketer with experience in React, Supabase, Vercel deployment, and AI-powered applications. I have reviewed your STO project requirements and can support both the technical migration and growth marketing side within your timeline. Technical approach: • Export and optimize the existing Base44 React codebase • Migrate backend services to Supabase (Auth, Database, APIs) • Deploy and configure on Vercel with custom domain • Improve mobile responsiveness and fix UI/UX issues • Integrate OpenAI or Claude APIs for personalized AI workflows Marketing approach: • Set up and optimize Meta Ads campaigns for Spain/LATAM health audiences • Configure Google Search Ads for targeted wellness and AI-health keywords • Create engaging ad copy and simple creatives • Provide weekly performance and optimization reports Ready to discuss the roadmap and long-term collaboration. Thanks, Christina
€700 EUR in 7 days
8.4
8.4

Hi there, We’ve developed several health and fitness apps, including a personal trainer app that connects trainers with clients and allows trainers to create custom workout plans. We also built a web app for trainers to manage their clients and track their progress. This experience gives us a strong understanding of how to create effective MVPs that deliver real value to users. For your project, we can handle both the front-end and back-end work. We’re experts in React and have extensive experience with Node.js, Express, and server management. We’ve also worked with AWS, DigitalOcean, and Azure, so we can choose the best option for your specific needs. Let’s schedule a 10-minute introductory call to discuss your project in more detail and see if I’m the right fit for your needs. I’m looking forward to hearing more about your exciting project. Best, Adil
€275 EUR in 7 days
7.6
7.6

⭐⭐⭐⭐⭐ Create an AI Health App with Full-Stack Development & Marketing Expertise ❇️ Hi My Friend, I hope you're doing well. I reviewed your project and see you're looking for a Full-Stack Developer and Growth Marketer for your AI health app. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects in app development and marketing. I will clean up the React codebase, migrate the backend, and set up effective marketing campaigns to drive growth. ➡️ Why Me? I can easily manage your AI health app project as I have 5 years of experience in full-stack development and digital marketing. My skills include React, Supabase, and Vercel for development, along with proven strategies for Meta Ads and Google Ads. I also have a strong grip on analytics tools to track performance and optimize campaigns. ➡️ Let's have a quick chat to discuss your project in detail and I can provide samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ React Development ✅ Supabase Integration ✅ Vercel Deployment ✅ API Integration ✅ UI/UX Design ✅ Mobile Responsiveness ✅ Meta Ads Campaigns ✅ Google Ads Management ✅ Ad Creative Design ✅ Performance Reporting ✅ Data Analysis ✅ Spanish Communication Waiting for your response! Best Regards, Zohaib
€350 EUR in 2 days
7.8
7.8

Hi, I see this project involves both React frontend cleanup and backend migration to Supabase, alongside AI integration and marketing campaigns, which presents a complex full-stack challenge. The real engineering risk lies in orchestrating data consistency and responsiveness between the migrated backend and AI-driven personalization features. I usually structure projects by isolating frontend and backend concerns while ensuring robust API contracts to maintain system integrity during migration and feature expansion. My experience with Custom Feature Development & Integration demonstrates my ability to analyze and improve existing codebases systematically, while the AI-Driven Marketing Suite project reflects my capability to combine AI with marketing intelligence effectively. I recommend separating the backend migration from AI feature integration to reduce risk and allow iterative validation of personalized routine generation. For AI reliability, embedding refresh and fallback routing strategies ensure the system gracefully handles API limitations or errors, maintaining user experience. Systems I design are built for sustainable production use, with clear documentation and testing to support long-term maintenance. I can start by outlining the retrieval pipeline for user data synchronization and sketch the ingestion architecture for AI routine generation. Thanks, Hercules
€500 EUR in 7 days
7.0
7.0

You need the React codebase exported from Base44 and migrated to Supabase, alongside targeted Meta/Google Ads campaigns for the Spanish market. - I’ll handle the technical migration first: export and refactor the React frontend, set up Supabase for auth/database/APIs, and deploy to Vercel with your custom domain. The OpenAI/Claude integration will use serverless functions to keep costs predictable. - For UI, I’ll prioritize mobile responsiveness (testing on iOS/Android) and critical bug fixes, focusing on the routine-generation flow where users interact most with the AI. - On marketing, I’ll structure Meta Ads for lookalike audiences based on health/wellness interests in Spain (using Advantage+ placements) and Google Search campaigns with exact-match keywords. Creatives will highlight the "personalized IA routines" hook with A/B copy variants. I’ll deliver the full scope in 7 days, with the €700 covering the work as described; we’ll adjust the split between dev and marketing once we clarify which UI bugs are highest priority and whether you prefer static or dynamic ad creatives. A 15-minute call will align us on those details before starting.
€600 EUR in 7 days
7.0
7.0

Hello, With 4 years of experience in Mobile App Development, PHP, API Integration, and Full Stack Development, I am well-equipped to handle your project requirements. I understand the need for a Full-Stack Developer and Growth Marketer for your AI Health App project. I can efficiently export and clean up the React codebase, migrate the backend to Supabase, deploy on Vercel, fix UI bugs, and integrate the required AI features. Having expertise in React, Supabase, Vercel, and Google Ads, I am confident in delivering a professional solution tailored to your needs. Let's discuss further details in the chat to ensure a successful collaboration. Looking forward to the opportunity to work together. Best regards, Taimoor from Pixels Soft
€500 EUR in 7 days
6.7
6.7

Hi, We can help with both the full-stack cleanup and AI + growth setup for STO. We work with React, Supabase, Vercel, and OpenAI/Claude integrations, and can handle the migration, bug fixes, and deployment end-to-end. We can also support Meta + Google Ads setup for health/wellness audiences, including campaign structure, targeting (Spain/LATAM), and basic creatives + reporting. Includes: React code cleanup + Base44 export fix Supabase backend migration (auth, DB, APIs) Vercel deployment + domain setup UI fixes + mobile responsiveness OpenAI/Claude integration Meta + Google Ads setup + campaign launch Basic ad creatives + weekly report We can start within a week and work in milestone-based delivery. Regards Interconnect Team
€500 EUR in 7 days
6.8
6.8

Hello, I am a full-stack developer and digital marketer with experience in React, Supabase, Vercel deployment, and AI-powered applications. I have reviewed your STO project requirements and can support both the technical migration and growth marketing side within your timeline. Technical approach: • Export and optimize the existing Base44 React codebase • Migrate backend services to Supabase (Auth, Database, APIs) • Deploy and configure on Vercel with custom domain • Improve mobile responsiveness and fix UI/UX issues • Integrate OpenAI or Claude APIs for personalized AI workflows Marketing approach: • Set up and optimize Meta Ads campaigns for Spain/LATAM health audiences • Configure Google Search Ads for targeted wellness and AI-health keywords • Create engaging ad copy and simple creatives • Provide weekly performance and optimization reports Ready to discuss the roadmap and long-term collaboration.
€500 EUR in 7 days
6.7
6.7

Hi, I will seamlessly integrate AI features into your AI Health App to enhance user experience and engagement. As your Full-Stack Developer and Growth Marketer, you can expect a streamlined React codebase migration to Supabase, ensuring a flawless deployment on Vercel with improved UI/UX. Additionally, I will expertly manage Meta and Google Ads campaigns targeting the health & wellness audience in Spain, providing weekly performance reports for continuous optimization. I will personally handle the technical aspects and marketing strategies, keeping you updated throughout the process. How do you envision the AI features enhancing user routines in STO? Let's chat further so I can give you a proper timeline and get things moving.
€250 EUR in 7 days
6.3
6.3

Hello, I understand you need both technical execution and growth marketing for STO, your AI-powered health assistant built on Base44. I can handle the React code export, Supabase migration, Vercel deployment, AI API integration, and mobile UI fixes while also setting up Meta and Google Ads campaigns focused on Spain’s health and wellness audience with Spanish-ready targeting and messaging. I will deliver a clean migrated stack using React + Supabase, optimized API flows for OpenAI or Claude, responsive mobile improvements, secure auth/database setup, and production deployment on Vercel with your custom domain. On the marketing side, I’ll launch Meta and Google Search campaigns, create 2–3 ad creatives with Spanish copy, optimize targeting for wellness users, and provide weekly performance reporting with CTR, CPC, and conversion insights. I’m available to start within the next week and can structure the project through milestone-based delivery across the 3–4 week timeline. The proposed budget split would prioritize core development first while allocating part of the budget for ad setup, creatives, and campaign optimization to ensure both a stable product and measurable growth results. Thanks, Asif
€750 EUR in 14 days
6.4
6.4

Hi, Your STO project is an exciting combination of AI product development and performance marketing, and I can help you handle both the technical migration and growth setup efficiently. I have strong experience with React, Supabase, Vercel, API integrations, and AI platforms such as OpenAI and Anthropic. I also manage Meta and Google Ads campaigns focused on lead generation and app acquisition. For your project, I can export and clean the Base44 codebase, migrate authentication and database logic to Supabase, deploy to Vercel, improve mobile responsiveness, and integrate AI features. On the marketing side, I can launch Spanish-targeted Meta and Google campaigns, create ad creatives, and provide weekly reports. A practical budget split would be approximately $500 for development and $200 for campaign setup and creative production, with milestone-based delivery over 3 to 4 weeks. I am available to start within one week and would be grateful for the opportunity to support STO as a long-term growth partner. Best, Justin
€500 EUR in 7 days
6.5
6.5

Hello There!!! ★★★★ ( Full-stack development + AI integration + performance marketing setup for STO health AI app ) ★★★★ Project understanding: You need a developer who can extract and clean your React (Base44) codebase, migrate backend to Supabase, deploy on Vercel, and integrate AI (OpenAI/Claude). Alongside development, you also need hands-on growth marketing with Meta Ads + Google Ads targeting Spain/LATAM health users, plus creatives and reporting. Services ⚜ React code cleanup & migration from Base44 ⚜ Supabase backend setup (auth, DB, APIs) ⚜ Vercel deployment + custom domain configuration ⚜ OpenAI / Claude API integration for AI health features ⚜ UI fixes & mobile responsiveness improvements ⚜ Meta Ads setup + campaign management (Instagram/Facebook) ⚜ Google Ads search campaigns + creatives + reporting I have experience in React, full-stack systems, API integrations, Supabase, Vercel deployments, and also running performance marketing campaigns for SaaS and app-based products. My approach is to first stabilize codebase + migration, then implement AI layer, and parallelly set up ad funnels with tracking for conversions and retention insights. Let’s connect and discuss how to split dev + marketing for best ROI within your budget. Warm Regards, Farhin B.
€700 EUR in 7 days
6.7
6.7

Hi there, Building an AI health app like STO comes with its challenges, especially when ensuring seamless tech integration and effective market reach. Transitioning from Base44 to Supabase and ensuring flawless React code involves critical steps prone to bugs and downtime without the right expertise. However, with my full-stack development experience, particularly in React and Supabase, I can streamline this migration, ensuring a smooth transition and optimal performance. On the marketing front, targeting the Spanish health market with precise Meta and Google Ads can be tricky but is essential to maximize your app's visibility and user engagement. Here are my questions: What specific metrics are you targeting for the Meta/Google Ads campaigns? Could you share any existing analytics from your current app usage? Let’s discuss your project now!
€450 EUR in 14 days
6.0
6.0

Hello, I can help take STO from the current Base44 prototype into a scalable, production-ready AI health app while also supporting the first growth campaigns for Spain/LATAM. I’ll deliver: -Export and cleanup of the Base44 React codebase -Supabase migration for auth, database, and API handling -Vercel deployment with custom domain setup -Mobile responsiveness fixes and UI improvements -OpenAI/Claude integration for AI-generated routines and scoring -Meta Ads setup for Instagram/Facebook health audiences -Google Search Ads targeting Spanish wellness keywords -2–3 ad creatives with copy and lightweight visuals -Weekly performance and optimization reports I have experience with React, Supabase, Vercel, AI integrations, and performance-focused ad campaigns. Ready to review the current app structure and start within your timeline.
€250 EUR in 5 days
6.3
6.3

As a seasoned web engineer, I bring over a decade of robust experience in creating, maintaining, and optimizing highly functional websites to the table. My proficiency spans across various domains including both front-end and back-end development - the exact skills you're searching for. I'm well-versed in React, Supabase, Vercel, all the fundamentals needed for satisfying your technical requirements for this project. Regarding marketing and growth, my skill set extends to running effective ads campaigns on Facebook, Instagram, and Google. I understand the importance of targeting niche audiences in order to achieve maximum traction for any product; precisely what your AI Health App needs! Being a native Spanish speaker myself only amplifies my understanding of your target market (Spain/LATAM), optimizing our ad campaigns in line with popular search keywords like "app salud digital" and "rutinas personalizadas IA". Budget allocation is crucial and I'm pleased to share that my breakdown aligns closely with the nature of the project: $500 towards development and $200 towards marketing. Let's get started within a week. I am consistently seeking long-term relationships with my clients based on solid results and mutual satisfaction - something I'm confident we can achieve together. Choose me to put our app on the trajectory it truly deserves!
€250 EUR in 5 days
6.0
6.0

Hello dear, Greetings from MD. Toriqul Islam! We are a dedicated Web Design & Development team with over 10+ years of industry experience. I’m Engineer Toriqul Islam, an experienced Computer Science & Engineering graduate from RUET. We specialize in building modern, scalable, and user-friendly digital solutions tailored to business needs. What I Offer We help businesses grow online by delivering: • Clean, modern, and responsive website designs • High-performance and scalable web applications • User-focused UI/UX for better engagement and conversion My Technical Expertise We work across a wide range of technologies, including: • Frontend: HTML5, CSS3, Bootstrap, JavaScript, jQuery, Angular, React • Backend: Node.js, PHP, Laravel, .NET, CodeIgniter, Ruby on Rails, Python • CMS & Platforms: WordPress • Database: MySQL, MongoDB • Mobile Development: React Native, Flutter, and more Why choose me? ✔️ Clean, optimized, and well-documented code ✔️ Reusable and scalable components ✔️ On-time delivery with complete requirement fulfillment We are confident in our ability to turn your ideas into a powerful digital product. Let’s discuss your project and make it a success. Looking forward to working with you! Best Regards, Md. Toriqul Islam
€250 EUR in 3 days
6.1
6.1

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