Get a fully functional, cross-platform AI mobile app for iOS and Android — complete with AI model integration, user authentication, and source code delivered by an expert London-based AI developer.
I Will Build Your AI Mobile App with ChatGPT Integration
Core AI mobile app for iOS and Android with authentication and source code.
- Functional iOS app
- Functional Android app
- Integration of an AI model into your existing app
- User authentication
- Full source code included
- Cross-platform Flutter build
Everything in Essential plus AI model fine-tuning and bespoke UI/UX design.
- Functional iOS and Android app
- AI model integration and fine-tuning
- Bespoke application and UI/UX design
- User authentication
- Full source code included
- Firebase and API integration
Full-featured AI SaaS app with chatbot, fine-tuning, and custom design — complete build.
- Functional iOS and Android app
- AI model integration and fine-tuning
- Bespoke application and UI/UX design
- AI chatbot integration (customer support, FAQs, conversational AI)
- User authentication and backend integration
- Full source code included
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Key details about this service to help you decide. Generated by Zinn Hub, not the seller.
Value Position
Platform Coverage
AI Integration Depth
Chatbot Access
Turnaround & Support
What You'll Receive
Full Description
Your idea deserves an app that works intelligently from day one. Whether you need a standalone AI-powered mobile app, a ChatGPT-driven conversational experience, or a fully custom AI SaaS application, this service delivers a complete, production-ready solution built for both iOS and Android.
Zinn Digital is a London-based AI development studio specialising in high-performance mobile applications powered by modern AI technologies. Using Flutter, Firebase, Node.js, Python, and ChatGPT, every app is engineered for reliability, scalability, and a seamless user experience across devices.
**What You Receive**
Every tier includes a functional iOS and Android app, integration of an AI model into your application, user authentication, and full source code — so you own everything. Higher tiers add AI model fine-tuning, bespoke UI/UX design, and a fully integrated AI chatbot capable of handling customer support, FAQs, and conversational flows within your app.
**How It Works**
Once your order is placed, you will be asked to share your app description, feature requirements, platform preferences, and any design references or brand assets you have. From there, development begins immediately. Throughout the build, you can communicate directly via the order chat. At handover, you receive your source code and all project files, ready for deployment or app store submission.
App store submission assistance for both the Google Play Store and Apple App Store is available as an optional add-on, so your launch is covered end to end.
**Post-Launch Support**
Development does not stop at delivery. Post-launch support for bug fixes, updates, and new feature additions is available, ensuring your app continues to perform as your user base grows.
**Who This Is For**
This service is ideal for entrepreneurs validating a new AI product, businesses looking to add conversational AI into an existing mobile app, and teams who need a cross-platform SaaS application built quickly without compromising on quality. If you have an AI app concept and need an experienced developer to bring it to life — this is exactly where to start.
**Technologies Used**
Flutter · Dart · ChatGPT API · Firebase · Node.js · Python · REST APIs
Ready to build? Place your order and let's get started.
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Compare Packages
| Feature | Essential | Boost | Premium |
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 14 days |
| Revisions | 0 | 0 | 0 |
| Functional iOS app | ✓ | ✕ | ✕ |
| Functional Android app | ✓ | ✕ | ✕ |
| Integration of an AI model into your existing app | ✓ | ✕ | ✕ |
| User authentication | ✓ | ✓ | ✕ |
| Full source code included | ✓ | ✓ | ✓ |
| Cross-platform Flutter build | ✓ | ✕ | ✕ |
| Functional iOS and Android app | ✕ | ✓ | ✓ |
| AI model integration and fine-tuning | ✕ | ✓ | ✓ |
| Bespoke application and UI/UX design | ✕ | ✓ | ✓ |
| Firebase and API integration | ✕ | ✓ | ✕ |
| AI chatbot integration (customer support, FAQs, conversational AI) | ✕ | ✕ | ✓ |
| User authentication and backend integration | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build Your AI Mobile App with ChatGPT Integration
Build Your AI Mobile App with ChatGPT Integration
Extra Information
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Frequently Asked Questions
You will need to provide a clear description of your app idea, a list of the features you require, your platform preferences (iOS, Android, or both), and any design references or brand assets you have. The more detail you can share, the smoother the build process will be.
Yes, full source code is included with every tier. You own everything delivered — there are no hidden licensing restrictions.
Development is carried out using Flutter and Dart for cross-platform mobile builds, ChatGPT API for AI integration, Firebase for backend and authentication, and Node.js and Python where server-side functionality is required.
Yes. All tiers produce a fully functional app for both iOS and Android using a cross-platform Flutter build, so you reach both audiences from a single codebase.
Fine-tuning tailors the AI model's behaviour to your specific use case — for example, training it to respond in a particular tone, focus on your industry's terminology, or handle domain-specific queries more accurately.
Yes. Every app is built to be fully responsive and optimised for both smartphones and tablets across iOS and Android.
Yes, app store submission assistance for both the Google Play Store and Apple App Store is available as an optional add-on. This covers preparing and submitting the app for review.
Yes. A 30-day post-launch support package is available as an add-on, covering bug fixes, updates, and minor new feature additions to keep your app running smoothly after launch.
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