ONCE
Own what you pay for, control what you depend on.

ONCE is a software product line from 37signals that sells one-time-purchase software you host yourself, including a group chat app (Campfire) and a web book publishing tool (Writebook). Unlike SaaS products, ONCE gives buyers the source code and full control over their data. The philosophy centers on ownership, privacy, and eliminating recurring subscription fees.
Customers pay once for a ONCE product, receive the source code, and host it themselves with no ongoing subscription required.
businesses and individuals who want self-hosted software without recurring subscriptions
Background.
- Status
- launched
- Business model
- one-time
- Company
- 37signals LLC
Contact
Similar projects.
Editorial take on the space this project sits in — momentum signals, adjacent moves, our call on whether the wedge is real. Get pinged when we publish a new read or when the landscape shifts.
Have a take on this space?
Tell us what you’d build differently, where you think the incumbents miss, or what we’ve gotten wrong about this project. Comments + reactions are coming soon.