Built by a couple, for their own dynamic.
We're a married couple in a D/s dynamic, and we both write software for a living. Our own arrangement kept drifting, and the tools available were notes apps, spreadsheets and memory. So we spent about two years building the thing we wanted, and running every feature against our own relationship first.
Most of that time went on arguments rather than code: what should require both signatures, whether a missed task should feel like a failure, and how much an app is allowed to ask of you.
Consent as a mechanism
Both partners sign, changes need acceptance, a safeword stops everything, and ending the dynamic takes both.
Discretion by default
Everything is private until a user chooses otherwise. No ads, no matching, no data sales.
An honest record
History is added to, not rewritten. A corrected outcome sits beside the original instead of erasing it.
