Get a fully functional AI-powered application built by a London-based team of 75+ engineers — from chatbots and image generators to SaaS platforms — delivered with clean code and full source files.
I Will Build Your AI App, Web App or SaaS Solution
AI model integration focused on a single core use case, with full source code handover.
- Integration of one AI model into an existing or new app
- Single focused use case (e.g. chatbot, transcriber, image tool)
- Full source code included and handed over on completion
- ChatGPT / LLM integration
- Milestone-based delivery with client approval at each stage
- Free pre-order consultation available
Extended scope with one revision round — ideal for more complex integrations or a custom-trained model.
- Everything in Starter, with extended development time
- Integration of AI model with broader feature scope
- Custom open-source model training to fit your use case
- Full source code included and handed over on completion
- Milestone-based delivery with one revision round
- Deployment support across AWS, Azure, GCP or DigitalOcean
Full end-to-end AI product build — web, mobile or SaaS — with back-end, deployment, and post-launch support.
- Complete end-to-end AI app development (web, mobile or SaaS)
- Back-end development included alongside AI integration
- Custom model training and hosting on your chosen infrastructure
- App deployment and go-live support included
- Full source code on private GitHub, transferred on completion
- Post-development maintenance support and two revision rounds
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Key details about this service to help you decide. Generated by Zinn Hub, not the seller.
Value Position
AI Model Integration
Team Scale
Delivery Timeline
Source Code Ownership
What You'll Receive
Full Description
You have an idea, a process to automate, or a product to launch — and you need engineers who can actually build it with AI at its core. Zinn Digital is a London-based team of 75+ engineers specialising in AI-powered mobile, web, and SaaS development. Whether you want to integrate a language model into an existing app or build a brand-new AI product from scratch, this service covers the full development cycle.
Every engagement is structured around milestones, so you review and approve each stage before we move forward. You stay in control throughout, and nothing is handed over until you are satisfied.
**What We Can Build**
Our engineers work across a wide range of AI application categories, including: text-to-image generators, face and body swapping tools, travel planners, biography writers, recipe planners, AI chatbots built with LangChain, fitness generators, AI transcription tools, and ERP planners. If your use case is not listed, get in touch — we are experienced in training open-source models to meet custom requirements.
**Services Covered**
- AI model integration and custom model training
- Mobile app development
- Web app and SaaS development
- Back-end development
- App deployment across AWS, Azure, GCP, and DigitalOcean
- Post-development maintenance and support
**Source Code & Ownership**
All source code is maintained in a private GitHub repository throughout development and transferred to you in full once the project is complete and all milestones are settled. You own everything.
**Confidentiality**
Your project details are kept strictly confidential. We do not share information between clients, and we are happy to sign an NDA where required.
**Why Zinn Digital?**
We provide regular progress updates, are highly flexible across time zones, offer free consultations before you commit, and write clean, efficient, well-structured code. Our end-to-end approach means you have a single accountable team from requirement gathering through to deployment.
**Who Is This For?**
This service suits founders building AI-first products, businesses looking to automate internal processes with AI, and product teams needing specialist AI integration added to an existing platform.
Not sure which tier fits your project? Send us a message and we will walk you through it on a free consultation call — no obligation.
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Your payment is protected until you approve the delivered work.
Compare Packages
| Feature | Starter | Boost | Premium |
|---|---|---|---|
| Delivery Time | 7 days | 14 days | 21 days |
| Revisions | 0 | 1 | 2 |
| Integration of one AI model into an existing or new app | ✓ | ✕ | ✕ |
| Single focused use case (e.g. chatbot, transcriber, image tool) | ✓ | ✕ | ✕ |
| Full source code included and handed over on completion | ✓ | ✓ | ✕ |
| ChatGPT / LLM integration | ✓ | ✕ | ✕ |
| Milestone-based delivery with client approval at each stage | ✓ | ✕ | ✕ |
| Free pre-order consultation available | ✓ | ✕ | ✕ |
| Everything in Starter, with extended development time | ✕ | ✓ | ✕ |
| Integration of AI model with broader feature scope | ✕ | ✓ | ✕ |
| Custom open-source model training to fit your use case | ✕ | ✓ | ✕ |
| Milestone-based delivery with one revision round | ✕ | ✓ | ✕ |
| Deployment support across AWS, Azure, GCP or DigitalOcean | ✕ | ✓ | ✕ |
| Complete end-to-end AI app development (web, mobile or SaaS) | ✕ | ✕ | ✓ |
| Back-end development included alongside AI integration | ✕ | ✕ | ✓ |
| Custom model training and hosting on your chosen infrastructure | ✕ | ✕ | ✓ |
| App deployment and go-live support included | ✕ | ✕ | ✓ |
| Full source code on private GitHub, transferred on completion | ✕ | ✕ | ✓ |
| Post-development maintenance support and two revision rounds | ✕ | ✕ | ✓ |
Extra Information
Why Choose Me
Tools I Use
Perfect For
Frequently Asked Questions
We divide the full project into clearly defined milestones. At the end of each milestone, you review the deliverable and approve it before we proceed to the next stage. This keeps you in control throughout and ensures nothing moves forward until you are satisfied.
We work with AWS, Azure, Google Cloud Platform (GCP), and DigitalOcean. If your project requires a different platform, we are happy to explore it — just let us know at the start.
Yes. All source code is maintained in a private GitHub repository throughout development. Once all milestones are complete and settled, the entire repository — all code and assets — is transferred to you in full.
Yes. We train open-source models to meet custom requirements. This is particularly relevant for the Boost and Premium tiers. If you are unsure whether your use case requires custom training, contact us before ordering and we will advise you.
Absolutely. Your trained model can be hosted on services such as Replicate or on your own server infrastructure. We will discuss the best option for your needs during the project.
All project information is kept strictly confidential and is never shared with other clients. We are happy to sign a Non-Disclosure Agreement (NDA) if required — this can be arranged at no extra cost before work begins.
You will need to share a clear description of your use case, any relevant logins or access credentials for existing systems, and any design or technical requirements you have. The more detail you provide upfront, the smoother and faster the process will be. We will reach out via order chat if we need anything further.
We build across a wide range of categories including AI chatbots (LangChain), text-to-image generators, face and body swapping tools, travel planners, biography writers, recipe planners, fitness generators, AI transcription tools, and ERP planners. We also handle bespoke use cases — message us if yours is not listed.
Customer Reviews
See what our customers say about this Zinn
The delivery of the third phase took longer than expected, however, I am satisfied with what has been delivered so far and Ashish took all my feedback positively.
Another project successfully completed, with quality work and attention to detail. Easily one of the best on Zinn Hub — highly recommended!
It's truly been a great experience working with this team. I would absolutely continue this working relationship going forward and highly recommend them.
Great experience working with them. Strong technical expertise, clear communication, and a solid understanding of the requirements from start to finish. The work was delivered professionally and on time, with good cooperation throughout the project. Would definitely recommend and work with them again.
The production-ready app was delivered bug-free. The developers maintained constant communication throughout every step, and when I had questions, they were quick to respond and address my concerns, issues, and queries. There were some gaps that I identified a little late in the project, but they made sure to go above and beyond to cover them, as it made more sense to implement them within the context of this current project.
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