Get a production-ready AI integration — chatbots, agents, or LLM-powered web apps built by a London-based AI development studio with full source code delivered.
I Will Build Custom AI Chatbots, Agents & Web Applications
Add core LLM-powered features to your existing web application with full source code.
- Integration of an AI model into your existing web application
- Core ChatGPT-style conversational features
- Full source code included
- Cloud-compatible deployment
- 3 rounds of revisions
- Delivery in 4 days
Full chatbot integration with AI fine-tuning, user authentication, and application design.
- Everything in Core AI Integration
- AI model fine-tuning for your domain
- Chatbot integration (support, transactional, or contextual)
- Application or website UI design
- User authentication system
- 5 rounds of revisions
Complete AI platform with native iOS and Android apps, fine-tuning, chatbot, and design.
- Everything in Boost tier
- Functional native iOS application
- Functional native Android application
- Full source code for web and mobile
- 7 rounds of revisions
- Delivery in 14 days
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Value Position
AI Stack
Deployment Flexibility
Upgrade Path
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What You'll Receive
Full Description
Your business deserves AI that actually works in the real world — not a generic plugin, but a purpose-built, scalable solution woven directly into your existing product or platform. Zinn Digital™ is a London-based AI development studio specialising in conversational AI chatbots, intelligent agents, LLM-powered websites, and custom GPT-style applications tailored precisely to your requirements.
Whether you need to add smart chat functionality to an existing web app, automate complex workflows with an AI agent, or build an entirely new AI-driven product from the ground up, every engagement ends with clean, well-structured source code handed over to you — no lock-in, no black boxes.
**What Gets Built**
Zinn Digital™ designs and develops a broad range of AI solutions: conversational chatbots (support, transactional, contextual, and voice-activated), smart AI agents for automation and customer engagement, cloud or on-premise AI websites, custom LLM applications with vector database embeddings (Pinecone, Chroma and others) for domain-specific knowledge retrieval, AI voice generation integrations, and full AI SaaS platforms. Both hosted and open-source LLMs are supported, and deployments can target cloud or on-premise infrastructure.
**How It Works**
After your order is placed, you share your project details, existing app credentials or access, and any relevant context via the order chat. Zinn Digital™ scopes the integration, builds iteratively, and communicates transparently throughout. Source code is delivered at completion, along with any documentation needed to understand and extend what has been built.
**Who This Is For**
This service suits founders, product teams, and businesses across healthcare, finance, e-commerce, and education who want to embed genuine AI capability — not surface-level chatbot widgets — into their products. If you have an existing web application that needs LLM intelligence added, or a new AI product concept that needs bringing to life, this is the engagement for you.
**Why Zinn Digital™**
Based in London, Zinn Digital™ combines hands-on experience across AI model fine-tuning, embeddings, multimodal AI, and automation with a commitment to transparent communication and on-time delivery. Every project tier includes full source code so your team retains complete ownership of what is built. The studio works with both hosted APIs and open-source models, giving you genuine architectural flexibility rather than vendor dependency.
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Compare Packages
| Feature | Core AI Integration | Boost — Chatbot & Design | Premium — Full Mobile & AI Platform |
|---|---|---|---|
| Delivery Time | 4 days | 7 days | 14 days |
| Revisions | 3 | 5 | 7 |
| Integration of an AI model into your existing web application | ✓ | ✕ | ✕ |
| Core ChatGPT-style conversational features | ✓ | ✕ | ✕ |
| Full source code included | ✓ | ✕ | ✕ |
| Cloud-compatible deployment | ✓ | ✕ | ✕ |
| 3 rounds of revisions | ✓ | ✕ | ✕ |
| Delivery in 4 days | ✓ | ✕ | ✕ |
| Everything in Core AI Integration | ✕ | ✓ | ✕ |
| AI model fine-tuning for your domain | ✕ | ✓ | ✕ |
| Chatbot integration (support, transactional, or contextual) | ✕ | ✓ | ✕ |
| Application or website UI design | ✕ | ✓ | ✕ |
| User authentication system | ✕ | ✓ | ✕ |
| 5 rounds of revisions | ✕ | ✓ | ✕ |
| Everything in Boost tier | ✕ | ✕ | ✓ |
| Functional native iOS application | ✕ | ✕ | ✓ |
| Functional native Android application | ✕ | ✕ | ✓ |
| Full source code for web and mobile | ✕ | ✕ | ✓ |
| 7 rounds of revisions | ✕ | ✕ | ✓ |
| Delivery in 14 days | ✕ | ✕ | ✓ |
Portfolio
Examples of the seller's work related to this Zinn.

Build Custom AI Chatbots, Agents & Web Applications


Build Custom AI Chatbots, Agents & Web Applications

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Frequently Asked Questions
You will need to share access credentials or login details for your existing application, a description of what you want the AI to do, and any relevant business or technical context. If anything further is needed, Zinn Digital™ will follow up via the order chat.
Yes — every tier includes full source code delivery. You will have complete ownership of everything that is built, with no lock-in to any proprietary platform or framework controlled by Zinn Digital™.
Zinn Digital™ works with both hosted LLMs (such as OpenAI's API) and open-source models. The right model is chosen based on your requirements, budget, and whether you need cloud or on-premise deployment.
Yes. The Boost and Premium tiers include AI model fine-tuning. Vector database embedding (Pinecone, Chroma, and others) for domain-specific knowledge retrieval is also available as an add-on, enabling the AI to answer questions accurately from your own content.
Revisions are delivered via the order chat. Each tier includes a set number of revision rounds — Core includes 3, Boost includes 5, and Premium includes 7. Additional revisions can be purchased as an add-on before the order closes.
Yes. Zinn Digital™ can target cloud deployment (AWS, GCP, Azure, or similar) or on-premise infrastructure depending on your security and compliance requirements. Please specify your preference when placing your order.
Zinn Digital™ has built AI applications across healthcare, finance, e-commerce, and education, among others. The technology is adapted to the specific workflows, compliance considerations, and user expectations of each sector.
For large-scale or bespoke AI SaaS platforms and multimodal AI builds that go beyond the Premium tier scope, please send a message via the order chat before purchasing so requirements can be discussed and a suitable arrangement can be agreed.
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