Get a bespoke AI-powered mobile app built by a London-based developer with 10+ years of experience in React Native, ChatGPT integration, and custom LLM solutions for iOS or Android.
I Will Build a Custom AI Mobile App with ChatGPT Integration
A focused AI starter app for a single platform with custom UI/UX design.
- Simple AI / ChatGPT integration
- Custom UI/UX design
- Single platform — iOS or Android
- React Native development
- 3 months free post-launch maintenance (bug fixes, minor updates, performance)
- App publishing guidance for Google Play or App Store
A more capable AI app build with enhanced scope and one revision round.
- Advanced AI / ChatGPT or LLM integration
- Custom UI/UX design with expanded feature set
- Single platform — iOS or Android
- React Native + Node.js / Python backend
- Third-party API integration (e.g. payment gateways, cloud services)
- 3 months free post-launch maintenance (bug fixes, minor updates, performance)
Full-scale cross-platform AI mobile app with complete LLM development and two revision rounds.
- Full LLM / Custom GPT application development
- Cross-platform build — iOS and Android
- Bespoke UI/UX design with end-to-end product design
- React Native + Node.js + Python + AWS architecture
- Machine learning integration and multi-API connectivity
- 3 months free post-launch maintenance and App Store / Google Play publishing support
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Key details about this service to help you decide. Generated by Zinn Hub, not the seller.
Value Position
Tech Stack
AI Integration Type
Base Delivery
Industry Coverage
What You'll Receive
Full Description
Your next product deserves an AI mobile app that actually works — one built with clean architecture, a polished UI, and intelligent features your users will notice from the first tap. That is exactly what Zinn Digital delivers.
With over a decade of hands-on experience in AI and mobile app development, Zinn Digital is a London-based studio specialising in custom AI-powered mobile applications for iOS and Android. From straightforward ChatGPT integrations to full LLM-powered platforms, every project is engineered to perform, scale, and impress.
**What you get:**
Each engagement begins with understanding your product vision, your users, and the AI capability you want to embed. From there, Zinn Digital designs and develops a React Native mobile application with a custom UI/UX tailored to your brand and a level of AI integration matched to your chosen tier — ranging from a focused starter build through to a fully featured, multi-platform AI product.
Core capabilities include ChatGPT and LLM integration, custom GPT application development, machine learning features, API integration (including third-party services), and app publishing support for both the Google Play Store and Apple App Store.
**Technology stack:** React Native · Node.js · Python · AWS
**Industries served:** Healthcare · Finance · eCommerce · Education · Customer Service · Travel & Hospitality · Real Estate · Logistics
**Why Zinn Digital?**
A decade of focused experience in AI and mobile development means no learning curve on your budget. Every solution is bespoke — no templates, no recycled codebases. Data privacy is built in from the ground up, with strong security measures and compliance-conscious design throughout. All projects include three months of free post-launch maintenance covering bug fixes, minor updates, and performance enhancements.
**Who this is for:**
Founders validating an AI-driven product idea, product teams adding intelligent features to an existing app, and businesses in regulated or high-growth industries who need a development partner they can trust with complex requirements.
Send a message before ordering to discuss your project — this ensures a smooth start and the best possible outcome from day one.
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Compare Packages
| Feature | Starter | Boost | Premium |
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
| Revisions | 0 | 1 | 2 |
| Simple AI / ChatGPT integration | ✓ | ✕ | ✕ |
| Custom UI/UX design | ✓ | ✕ | ✕ |
| Single platform — iOS or Android | ✓ | ✓ | ✕ |
| React Native development | ✓ | ✕ | ✕ |
| 3 months free post-launch maintenance (bug fixes, minor updates, performance) | ✓ | ✓ | ✕ |
| App publishing guidance for Google Play or App Store | ✓ | ✕ | ✕ |
| Advanced AI / ChatGPT or LLM integration | ✕ | ✓ | ✕ |
| Custom UI/UX design with expanded feature set | ✕ | ✓ | ✕ |
| React Native + Node.js / Python backend | ✕ | ✓ | ✕ |
| Third-party API integration (e.g. payment gateways, cloud services) | ✕ | ✓ | ✕ |
| Full LLM / Custom GPT application development | ✕ | ✕ | ✓ |
| Cross-platform build — iOS and Android | ✕ | ✕ | ✓ |
| Bespoke UI/UX design with end-to-end product design | ✕ | ✕ | ✓ |
| React Native + Node.js + Python + AWS architecture | ✕ | ✕ | ✓ |
| Machine learning integration and multi-API connectivity | ✕ | ✕ | ✓ |
| 3 months free post-launch maintenance and App Store / Google Play publishing support | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build a Custom AI Mobile App with ChatGPT Integration
Build a Custom AI Mobile App with ChatGPT Integration
Extra Information
Why Choose Me
Tools I Use
Industries I've Served
Frequently Asked Questions
Please share a brief project description — your app concept, the AI features you have in mind, your target platform (iOS, Android or both), and any design preferences or reference apps. The more detail you can provide, the faster and smoother the kick-off. If anything is unclear, the project will be discussed via the order chat before development begins.
Once you place your order and submit your project brief, Zinn Digital reviews your requirements and confirms scope via the order chat. Development then proceeds through design, build, and integration phases, with progress shared at key milestones. Revisions (where included) are completed after the first delivery.
All projects include three months of complimentary post-launch maintenance, covering bug fixes, minor updates, and performance enhancements to ensure your app continues to run smoothly after delivery.
Yes — integrating third-party APIs such as payment gateways (e.g. Stripe or PayPal) or cloud services adds complexity and is scoped and priced accordingly. This will be discussed and agreed before development begins so there are no surprises.
Scaling to handle significant increases in user load may require additional backend infrastructure work and code updates. If scaling changes are needed beyond the original scope, these are scoped and quoted separately. This is discussed openly during the project so you can plan accordingly.
Due to client confidentiality, specific project names cannot be shared, but previous work spans AI applications in sectors including finance, healthcare, on-demand services, and social platforms. The technologies, feature sets, and outcomes for those types of projects can be discussed in the order chat.
Data privacy is built into every project from the outset. Strong security measures are implemented, data protection best practices are followed, and AI features are designed with privacy-first principles throughout — particularly important for healthcare and finance applications.
Yes — for larger projects, flexible milestone-based payment arrangements can be discussed. Reach out via the order chat or message before placing your order to arrange this.
Customer Reviews
See what our customers say about this Zinn
It's been a good experience so far. I look forward to working with the team during the next steps of my large project.
It's a pleasure working with this team and I look forward to completing the remaining milestones of my project.
Haseeb is a great freelancer with amazing tech skills, I recommend him to any Zinn Hub client.
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