Archflow vs LetDraw
Archflow
archflow.dev
LetDraw
letdraw.comSide by side
| Figure | Archflow | LetDraw |
|---|---|---|
| Price from | $5/mo | $5/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 2 | 3 |
| Spec score · AI Diagram Generators | 9.0 (#4) | 7.9 (#15) |
| Integrations | The service lists Stripe for payments, OpenAI for AI, GitHub and Google for authentication, and Resend for email. | LetDraw provides a REST API and MCP server, with documentation for connecting clients including Claude and Cursor. |
| Privacy | The privacy policy says Archflow processes data under UK GDPR and the Data Protection Act 2018, and does not sell, rent, or trade personal data. | The app works in the browser and offline, stores drawings locally by default, and makes cloud sync opt-in. |
| Self-hosting | The reviewed product pages describe Archflow as a hosted SaaS service and provide no self-hosting or on-premises deployment option. | Enterprise includes a self-hosting option so data can stay on the customer’s own infrastructure. |
| Support | The Free plan includes email support and Pro includes priority support. | The support page says most requests receive a reply within one business day, with faster replies for Pro and Enterprise. |
Plans
In their own words
Archflow
Archflow is a web platform for collaboratively designing software systems with AI. Its assistant can create architecture diagrams, user stories, scope cards, and technical documentation from natural-language input. The visual editor supports UML classes, interfaces, components, databases, and services, with drag-and-drop creation and undo/redo. Teams can edit together using synchronized changes, live cursors, presence indicators, comments, and activity feeds. Kanban boards track user-story status, estimates, and acceptance criteria, and link stories to architecture diagrams. Documentation is created in a Markdown editor with live preview and categories, and can also be AI-generated. The Free plan costs nothing and allows one project and three diagrams per project. Pro costs $5 a month and includes unlimited projects and diagrams, AI-generated content, real-time collaboration, and priority support. Archflow says prompts and selected project context are sent to OpenAI's API, and AI chat history is stored on its servers.