It is free and open-source on Desktop at this moment.
Keyguard is a commercial app and unlocking a premium funds its further development and supports me (Artem Chepurnyi) directly. As of right now, only the Android builds distributed via Google Play store have main features locked behind a paywall, other distribution channels have a build with everything unlocked.
But it makes sense to pay for it, since Bitwarden is a constantly changing system and these projects based on it must always be up-to-date with their API changes, too. This is time and worry consuming, and should be compensated.









Roger that. Thank you for the clarification that you meant the actual term, and not just the fact of no mandatory payment and it having an the source available for public.
I get what you mean, yet frankly, I do not believe such projects may be always free that are supposed to always be up-to-date for another system they have no official relation to, and keep it as a responsible hobby other people depend on.