Get a fully functional iOS and Android AI app built with Flutter — complete with chatbot integration, authentication, and source code delivered by a London-based developer with 6 years of experience.
I Will Build Your AI-Powered Mobile App with Chatbot Integration
Basic AI integration into a new or existing iOS and Android app — ideal for getting your first intelligent feature live fast.
- Functional iOS and Android app (Flutter)
- Integration of an AI model into your app
- Chatbot integration
- User authentication system
- Full source code included
- Unlimited revisions
Everything in Starter plus AI model fine-tuning and custom application/website design — the complete mid-tier build.
- Functional iOS and Android app (Flutter)
- AI model integration plus fine-tuning
- Chatbot integration
- Custom application and website UI/UX design
- User authentication system
- Full source code included
Full-scope AI SaaS development with fine-tuned AI model, custom design, and full-stack delivery — the complete product build.
- Functional iOS and Android app (Flutter) built from scratch
- AI model integration and fine-tuning
- Custom application and website UI/UX design
- Third-party API and payment method integration
- User authentication system
- Full source code included
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Value Position
Tech Stack
AI Capabilities
Delivery & Revisions
Source Code Ownership
What You'll Receive
Full Description
Your idea deserves more than a generic app. It deserves an intelligent, cross-platform mobile experience that works for your users around the clock — answering queries, automating workflows, and adapting to the people who use it.
I'm Zinn Digital™, a London-based mobile app developer with 6 years of experience specialising in AI-powered apps, chatbots, and SaaS solutions. I build smart, production-ready applications using Flutter (for seamless iOS and Android compatibility), Node.js, Express.js, Python, Django, and MongoDB or MySQL on the back end — integrated with Large Language Models and AI-driven technologies that genuinely elevate what your app can do.
**What your app can include:**
Every engagement starts with a functional iOS and Android app built in Flutter. Depending on the package you choose, your delivery can span a focused AI integration on an existing app all the way through to a fully designed, AI fine-tuned SaaS product with custom UI/UX. Core capabilities include:
— Custom AI model integration into new or existing apps
— Chatbot development for customer support, lead generation, or productivity
— User authentication systems
— Third-party API integration
— Payment method integration
— App submission support
— AI model fine-tuning (Standard and Full packages)
— Custom application and website design (Standard and Full packages)
— Full source code delivered with every package
**How it works:**
Once your order is placed, I'll reach out via the order chat to confirm your project brief, preferred AI model or API, branding requirements, and any existing codebase details. From there I work through development in structured phases and keep you updated throughout. Unlimited revisions are included across all packages — I won't sign off until you're satisfied.
**Who this is for:**
This service suits founders building their first AI product, businesses looking to add intelligent automation to an existing app, SaaS teams needing a scalable cross-platform foundation, and anyone who wants a reliable, experienced developer to bring an AI concept to life properly — not just wrap a basic API call in a template.
**Why Zinn Digital™:**
Six years of focused mobile and AI development, a full modern technology stack, cross-platform delivery as standard, and source code included so you own everything. Based in London, communicating clearly, and committed to delivering work that holds up in the real world.
Ready to build something intelligent? Place your order and let's get started.
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Compare Packages
| Feature | Starter AI Assist | Boost — AI + Design | Premium — Full AI SaaS Build |
|---|---|---|---|
| Delivery Time | 7 days | 10 days | 21 days |
| Revisions | unlimited | unlimited | unlimited |
| Functional iOS and Android app (Flutter) | ✓ | ✓ | ✕ |
| Integration of an AI model into your app | ✓ | ✕ | ✕ |
| Chatbot integration | ✓ | ✓ | ✕ |
| User authentication system | ✓ | ✓ | ✓ |
| Full source code included | ✓ | ✓ | ✓ |
| Unlimited revisions | ✓ | ✕ | ✕ |
| AI model integration plus fine-tuning | ✕ | ✓ | ✕ |
| Custom application and website UI/UX design | ✕ | ✓ | ✓ |
| Functional iOS and Android app (Flutter) built from scratch | ✕ | ✕ | ✓ |
| AI model integration and fine-tuning | ✕ | ✕ | ✓ |
| Third-party API and payment method integration | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build Your AI-Powered Mobile App with Chatbot Integration
Build Your AI-Powered Mobile App with Chatbot Integration
Extra Information
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Frequently Asked Questions
Once your order is placed, please share your project brief, preferred AI model or API (e.g. OpenAI, a custom LLM), any existing app codebase or design assets, your authentication requirements, and login credentials for any platforms I'll need access to. The more detail you can provide upfront, the faster we can get started. I'll follow up via the order chat if anything else is needed.
Yes. All three packages include integration of an AI model into an existing app. Simply share your current codebase and I'll assess compatibility and advise on the best integration approach during the brief stage.
The app layer is built in Flutter for cross-platform iOS and Android compatibility. The back end uses Node.js, Express.js, Python, or Django depending on your requirements. Databases are MongoDB or MySQL. AI integrations use Large Language Models and relevant AI APIs suited to your use case.
Yes — full source code is included with every package. You own everything delivered.
It means I will continue making changes within the agreed project scope until you are satisfied with the result. Revisions that expand the original scope (e.g. adding entirely new features mid-project) may be discussed as a separate scope adjustment, but all refinements to what was agreed are covered.
Yes. The chatbot can be tailored for customer support, lead generation, product recommendations, scheduling, or any other conversational workflow your business needs. Share your requirements in the brief and I'll design the chatbot flow accordingly.
Fine-tuning adapts an AI model on data specific to your domain so that it responds more accurately and relevantly to your users. It is included in the Boost and Premium packages. If your use case requires highly specific or branded responses, fine-tuning is recommended. The Starter package uses standard AI model integration, which is sufficient for many general-purpose chatbot and assistant features.
App submission support is available as an add-on. You will need to have active developer accounts with Apple and Google. I can guide you through the requirements or handle the submission process on your behalf with the relevant access provided.
Customer Reviews
See what our customers say about this Zinn
The frontend development for our AI-based Meeting Notes app was handled brilliantly. The work was executed with precision, creating a smooth, intuitive, and highly responsive user interface. We’re thoroughly impressed with the result and couldn’t be happier with how the app looks and functions.
Extremely professional and dedicated, consistently putting in the effort to deliver outstanding outcomes. His work on the AI Health Monitoring App was impressive, combining technical expertise with thoughtful execution to create a seamless and reliable user experience.
Tuhin is an exceptional Senior AI Developer whose deep expertise and meticulous approach ensured our project's success. His ability to deliver high-quality work on time truly stands out.
Absolutely impressed with this AI App! It’s intuitive, fast, and intelligently designed. The app makes complex tasks effortless and really enhances productivity. Highly recommended for anyone looking to leverage AI in their daily workflow.
Exceptional work from start to finish! The frontend developer brought remarkable skill and creativity to my AI Story Generator App, transforming ideas into a clean, intuitive and visually captivating user experience. Truly impressed with the detail, precision and smooth execution. I’ll gladly return for future projects!
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