Get a fully functional, cross-platform AI mobile app built in Flutter for both iOS and Android — complete with secure authentication, AI model integration, and full source code delivered ready to launch.
I Will Build Your AI Mobile App for iOS and Android with Flutter
A functional cross-platform AI app with secure login and AI model integration — full source code included.
- Functional iOS app built in Flutter
- Functional Android app built in Flutter
- AI model integration into your app
- Secure user authentication
- Full source code delivered
- Post-launch guidance and troubleshooting support
Everything in Starter plus custom UI/UX design and chatbot integration for a more complete product.
- Everything included in AI Starter
- Custom application and UI/UX design
- Chatbot integration built into the app
- AI model integration with a designed user experience
- Full source code delivered
- Post-launch guidance and troubleshooting support
The full-featured build: custom design, chatbot, and AI model fine-tuning for a production-ready AI product.
- Everything included in AI Standard
- AI model fine-tuning tailored to your use case
- Backend and database setup as required
- API and payment integration where applicable
- Full source code delivered
- Post-launch guidance, app store deployment support, and troubleshooting
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Tech Stack
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Source Code Included
Delivery Timeline
What You'll Receive
Full Description
Your AI mobile app idea deserves a skilled team that can take it from concept to a polished, store-ready product — and that is exactly what Zinn Digital delivers.
We are a London-based Flutter development studio specialising in cross-platform AI mobile applications. Using a single, unified Flutter codebase, we build apps that run beautifully on both iOS and Android, saving you time, budget, and the headache of maintaining two separate projects. Every app we deliver is built with clean architecture, secure authentication, and real AI integration — not superficial features bolted on as an afterthought.
**What is included in every tier:**
— A fully functional iOS app
— A fully functional Android app
— Integration of an AI model into your app (including support for OpenAI GPT and similar)
— Secure user authentication
— Complete source code delivered to you
Our technology stack covers the full product lifecycle. On the frontend, we work in Dart and Flutter. Our backend expertise spans Node.js, Express.js, and Python. For databases, we use PostgreSQL, MongoDB, and Firebase depending on your needs. AI capabilities are powered by frameworks including OpenAI GPT, and we can connect to third-party APIs or build tailored AI logic from scratch.
**Who is this for?**
This service is ideal for founders, product teams, and businesses who want to launch an AI-powered mobile product without building an in-house development team. Whether you have a detailed specification or a rough idea you need help refining, we will guide you through every step.
**How it works:**
1. Place your order and share your project brief.
2. We review your requirements and reach out via order chat if we need further details.
3. Development begins with regular progress updates.
4. You review, request revisions, and approve the final build.
5. We deliver the complete source code and support your app store deployment.
For projects requiring a full custom UI/UX design, chatbot integration, or AI model fine-tuning, our Standard and Complete tiers cover these in full — see the packages below for a clear breakdown of scope.
**Why Zinn Digital?**
We are cross-platform specialists focused exclusively on Flutter. Our AI integration experience means we understand not just the code but the product logic that makes AI features genuinely useful. We are based in London, offer unlimited revisions across all tiers, and provide 24/7 support throughout your project. We do not disappear after delivery — post-launch guidance, minor updates, and troubleshooting are part of how we work.
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Compare Packages
| Feature | AI Starter | AI Standard | AI Complete |
|---|---|---|---|
| Delivery Time | 7 days | 10 days | 14 days |
| Revisions | unlimited | unlimited | unlimited |
| Functional iOS app built in Flutter | ✓ | ✕ | ✕ |
| Functional Android app built in Flutter | ✓ | ✕ | ✕ |
| AI model integration into your app | ✓ | ✕ | ✕ |
| Secure user authentication | ✓ | ✕ | ✕ |
| Full source code delivered | ✓ | ✓ | ✓ |
| Post-launch guidance and troubleshooting support | ✓ | ✓ | ✕ |
| Everything included in AI Starter | ✕ | ✓ | ✕ |
| Custom application and UI/UX design | ✕ | ✓ | ✕ |
| Chatbot integration built into the app | ✕ | ✓ | ✕ |
| AI model integration with a designed user experience | ✕ | ✓ | ✕ |
| Everything included in AI Standard | ✕ | ✕ | ✓ |
| AI model fine-tuning tailored to your use case | ✕ | ✕ | ✓ |
| Backend and database setup as required | ✕ | ✕ | ✓ |
| API and payment integration where applicable | ✕ | ✕ | ✓ |
| Post-launch guidance, app store deployment support, and troubleshooting | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build Your AI Mobile App for iOS and Android with Flutter
Build Your AI Mobile App for iOS and Android with Flutter
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Frequently Asked Questions
Once your order is placed, please share your project brief and any relevant details via the order chat. We will review everything and follow up promptly if we need further clarification before development begins.
Yes. We use Flutter, which means your app is built from a single unified codebase that runs natively on both iOS and Android. You receive one project, two platforms, no compromise on quality.
Absolutely. We can integrate existing AI models, connect to third-party APIs such as OpenAI GPT or Google AI, or build a custom AI solution from the ground up depending on your requirements.
Fine-tuning means adapting the AI model's behaviour to suit your specific use case — for example, training it on your data or adjusting its responses to better match your product's purpose. This is available in the AI Complete tier.
After delivery, we provide guidance for app store submission, support for minor updates, and troubleshooting to make sure everything runs smoothly. We do not disappear after handing over the code.
All three tiers include unlimited revisions. We will continue refining the design and functionality based on your feedback until you are fully satisfied with the result.
At minimum, a description of your app idea and its core features. If you have wireframes, existing designs, API credentials, or a technical specification, please share those too. The more detail you provide, the smoother the process.
Yes. Every tier includes full source code delivery. The code is yours — you can build on it, hand it to another developer, or submit it to the app stores yourself.
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