Get a fully functional, AI-powered web application built by a London-based full-stack team — from a smart landing page to a complete SaaS product with chatbot, LLM integration and clean, deployable source code.
I Will Build Your AI Website, Chatbot or SaaS Web App
A polished, AI-powered static landing page or small-scale web app with core AI integration and full source code.
- Eyecatching static landing page with core features
- Functional web application
- Integration of an AI model into new or existing app
- AI model fine-tuning
- Chatbot integration
- Full source code via private Git repository
A fully featured AI web application plus a desktop application build — ideal for growing SaaS products needing broader reach.
- Everything in Starter, at larger project scope
- Functional web application with expanded feature set
- AI model integration and fine-tuning
- Chatbot integration (OpenAI, LangChain or similar)
- Desktop application included
- Full source code via private Git repository
A comprehensive, production-ready AI SaaS product — web app, desktop app and full end-to-end delivery from concept to deployment.
- Everything in Boost, at full production scope
- Full-scale web application with all required AI features
- Advanced AI model integration, fine-tuning and LLM configuration
- Chatbot integration and deployment-ready setup
- Desktop application for Windows and/or macOS
- Full source code, deployment support and 30-day post-launch assistance
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What You'll Receive
Full Description
If you want a scalable, AI-powered digital product that actually works in the real world, you need more than a developer — you need a team that understands both the technology and the business outcome you are building towards.
Zinn Digital is a full-stack software development team based in London, England, with over six years of experience delivering AI-powered websites, web applications and SaaS products for businesses across industries. From a sharp, conversion-focused landing page to a fully integrated AI system with custom model fine-tuning, we handle the complete journey — from initial idea through to deployment and beyond.
**What we build:**
Our expertise spans a wide range of AI-powered applications, including AI chatbots (using OpenAI, LangChain and similar frameworks), text-to-image generators, face and body swapping apps, AI travel planners, biography and story writers, recipe planners, fitness generators, AI transcribers, and ERP and business planning tools. If your idea sits adjacent to any of these, we are well placed to scope and deliver it.
**What is included in every package:**
Every engagement includes a functional web application, integration of an AI model (whether into a new build or an existing app), AI model fine-tuning, chatbot integration, and delivery of the full source code via a private Git repository with clear instructions. You will also receive 30 days of post-launch support and assistance as standard.
**How it works:**
We begin with a free consultation to understand your requirements and recommend the most appropriate technical approach. Once we align on scope, we get to work — providing regular project updates throughout. We are flexible with time zones and communicate clearly at every stage. If you have existing Figma, XD or PSD designs, we convert them into responsive, fully functional applications. If you need us to design from scratch, we do that too.
**Our tech stack:**
Python, React, Node.js, React Native, Flutter, OpenAI API, DeepSeek API, Three.js and more — we use whatever best fits your project's needs.
**Who this is for:**
Startup founders building their first AI SaaS product. Established businesses wanting to add AI functionality to an existing platform. Agencies looking for a reliable white-label development partner. Anyone with an AI product idea who needs a trustworthy, end-to-end technical team.
**Why Zinn Digital:**
We write clean, scalable and efficient code. We sign NDAs. We deliver source code. We provide SEO-ready builds with meta tags, alt text and mobile optimisation as standard. And we stand behind our work with ongoing support after delivery.
Share your idea and let us help you build something genuinely impressive.
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Compare Packages
| Feature | Starter | Boost | Premium |
|---|---|---|---|
| Delivery Time | 4 days | 14 days | 21 days |
| Revisions | unlimited | unlimited | unlimited |
| Eyecatching static landing page with core features | ✓ | ✕ | ✕ |
| Functional web application | ✓ | ✕ | ✕ |
| Integration of an AI model into new or existing app | ✓ | ✕ | ✕ |
| AI model fine-tuning | ✓ | ✕ | ✕ |
| Chatbot integration | ✓ | ✕ | ✕ |
| Full source code via private Git repository | ✓ | ✓ | ✕ |
| Everything in Starter, at larger project scope | ✕ | ✓ | ✕ |
| Functional web application with expanded feature set | ✕ | ✓ | ✕ |
| AI model integration and fine-tuning | ✕ | ✓ | ✕ |
| Chatbot integration (OpenAI, LangChain or similar) | ✕ | ✓ | ✕ |
| Desktop application included | ✕ | ✓ | ✕ |
| Everything in Boost, at full production scope | ✕ | ✕ | ✓ |
| Full-scale web application with all required AI features | ✕ | ✕ | ✓ |
| Advanced AI model integration, fine-tuning and LLM configuration | ✕ | ✕ | ✓ |
| Chatbot integration and deployment-ready setup | ✕ | ✕ | ✓ |
| Desktop application for Windows and/or macOS | ✕ | ✕ | ✓ |
| Full source code, deployment support and 30-day post-launch assistance | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.
Build Your AI Website, Chatbot or SaaS Web App
Build Your AI Website, Chatbot or SaaS Web App
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Frequently Asked Questions
Please share your project brief, any relevant logins or API keys, and design files if you have them (Figma, XD or PSD). The more context you provide, the faster we can begin. If anything is missing, we will reach out via order chat.
Before or after placing an order, you can share your idea with us and we will discuss the best technical approach, recommended stack and realistic scope. This helps ensure the right package is selected for your needs.
Yes. All source code is delivered via a private Git repository, along with clear instructions so your team can maintain and build on it independently.
Absolutely. NDA signing is available at no extra charge — simply mention it when you place your order or message us via order chat.
We work with OpenAI, LangChain, DeepSeek and others. Once we understand your use case, we will recommend the best-fit provider and integration approach for your project.
Every package includes 30 days of post-launch support as standard. If you need ongoing assistance beyond that, an extended support add-on is available.
Yes. We integrate custom AI chatbots into existing platforms using ChatGPT, LangChain or Voiceflow, regardless of what your current site is built on.
The packages above cover a range of common scopes. For highly bespoke projects, we take a personalised approach — once we understand your specific requirements, we can provide a tailored quote that reflects the actual scope of work.
Customer Reviews
See what our customers say about this Zinn
The final look of this custom-built website was sleek and professional. The structure was well-organized with perfect flow. Every page transitioned smoothly and kept the same quality. The fonts and color palette matched beautifully. The animations gave life to the layout without being distracting. Responsiveness worked flawlessly on every device. The overall user experience felt smooth and consistent. It’s a perfect blend of creativity and performance.
The finished website looks sleek and works flawlessly. All pages are responsive, navigation is intuitive, and the layout is visually balanced. The attention to detail in coding was outstanding. The delivery was prompt, and everything was fully functional upon completion.
Very professional and reliable developer. Communication was clear, fast, and solution-oriented, even with complex feedback and multiple iterations. Atif showed strong technical skills, paid close attention to details, and was always willing to think along and improve the product. Highly recommended for serious projects and long-term collaboration.
I received a good outcome that matched my vision well. The seller kept each update clear and easy to follow. The workflow felt structured and efficient. The final piece looked great on my platform. This service was worth every dollar.
Impressive work achieved through the custom website service. Pages appear crisp and well-aligned. Navigation remains easy on every device. Coding is clearly optimized for speed. Mobile view looks sharp. Very pleased with the custom website service.
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