Mobile appAI productsOriginal by Anthropic
Claude is an AI assistant that stands out especially for working with long documents, writing and code. Users can upload a report, contract or code repository and work through it in depth; in project workspaces, documents and instructions are stored persistently. Careful, nuanced answers, a safety-focused approach and the ability to edit outputs as a document or app in a separate window make it a preferred tool in professional workflows.
To develop a similar product, a ready-made LLM API is usually used and the difference is created at the product layer. You build the chat interface, project and document workspaces, a document-processing pipeline that uses long context efficiently, a side panel that shows outputs as editable content, team sharing, subscriptions and usage limits. Enterprise customers also need single sign-on, data retention policies and audit logs.
How Claude works: the core user flow
How many apps and dashboards do you need?
Web app
The main interface where users work with project workspaces, long documents and outputs edited in the side panel.
Mobile app
The app for quick Q&A, voice use and document analysis from photos.
Team and admin panel
The panel where a company admin manages users, permissions, usage limits and data policies.
Critical features of a product like Claude
Long-document processing
Documents hundreds of pages long are split while keeping their structure, and questions are answered with references to the relevant sections.
Project workspaces
Documents, custom instructions and conversations are grouped by project, and team members work in the same context.
Editable output panel
Code, documents or diagrams appear in a separate panel, and users work on the content without going back to the chat.
Code assistant
Code explanation, debugging and rewriting, with repository connections that provide context across files.
Security and content policies
Harmful requests are filtered; on enterprise plans data is not used for model training and retention is configurable.
Integrations
Connections to tools such as calendar, email and document stores let the assistant work with the user's own data.
What goes into the first version, what comes later
First version (MVP)
- Chat interface and streaming responses
- Document upload and Q&A over documents
- Project workspaces and custom instructions
- Free plan and a paid subscription
- Usage limits and cost monitoring
Later releases
- Outputs editable in a side panel
- Team plan, sharing and SSO
- Integrations with external tools and data sources
- Code repository connection and developer tools
Modules and how the budget is calculated
The budget is calculated with 360 SOFT’s pricing model from the modules below, about 24 screens and the project’s complexity: roughly 80 person-days for the full scope and 51 person-days for the first version. Every module you drop lowers the budget directly.
| Module | Phase |
|---|---|
| Sign-up, login, social login | First version |
| User profile and settings | First version |
| Roles and permissions | First version |
| Admin dashboard | First version |
| Subscriptions and recurring billing | First version |
| Online payments (Stripe / PSP) | First version |
| AI features (LLM, RAG, recommendations) | Later release |
| Real-time messaging | First version |
| File, photo, video upload | First version |
| Advanced search and filters | First version |
| GDPR and security hardening | First version |
| Third-party API integration | First version |
| Reporting and analytics | Later release |
Hosting, SMS, map APIs, app store accounts and payment-provider fees are separate items. Maintenance and improvements (optional): €300 / month. We send a fixed written price within 24 hours after a free discovery call.
The hard parts
Long-context cost
With large documents every question consumes many tokens, and without caching and smart chunk selection cost cannot be controlled.
Trust and accuracy
Professional users do not forgive errors, so citing sources and stating uncertainty clearly must be part of the product design.
Enterprise data security
Company documents are sensitive, so data isolation, encryption, audit logging and GDPR compliance are preconditions for sales.
Business model
A freemium subscription is the base model: limited use on the free plan, higher limits and advanced models on the individual paid plan. Team and enterprise plans are sold per seat with administration, SSO and data policies. API access for developers is a separate usage-based revenue line. The cost of long-document use must be reflected properly in plan limits.
Get a free quote for your project
Let us scope it together and send a fixed written quote within 24 hours. NDA on request; you own the source code.
Choosing a company to build an app like Claude
Most people searching “build an app like claude” are really looking for a reliable app development company. When comparing quotes, check four things:
- Can you try similar products they have shipped, in the stores or live?
- Are the source code, design files, servers and store accounts transferred to you by contract?
- Do they show a working demo every two weeks, with written scope and acceptance criteria?
- Are maintenance, scaling and GDPR/security costs written into the quote?
Copyright and trademarks
A business model and features are generally not protected on their own, but the Claude name, logo, interface design, content and source code are. That is why we build a product with similar functionality but your own brand, design and code. This is not legal advice; we recommend a trademark search before launch.
Frequently asked questions
How long does it take to build an app like Claude?
A first release with chat, document upload and project workspaces can be ready in a few months using a ready-made model API. Enterprise administration, integrations and the output panel can be left for later phases.
What does an assistant that works with documents need?
You need a pipeline for document parsing, chunking, vector search and citations. Even with long-context models, picking the right chunks directly affects cost and quality.
Will there be copyright or trademark issues?
The AI assistant business model and its features are generally free to use; however, the name, logo, interface design, copy and code cannot be copied. The model provider's terms of use must be followed; this is not legal advice.
What should I look for when choosing a company to build an enterprise AI assistant?
Choose a team with experience in RAG, data security and LLM cost management. Ask about switching model providers and how they measure quality.
