Self hosteable? Couldn’t find anything on the site.
You can use Keepass and share its file in any preferred way. No need to depend from external services
Strongbox is a iOS/macOS UI for keepass files, not another service.
I’ve used it for at least a year, it’s great.
I’ve used it for years, but I paid £23.99 for lifetime and now that’s shown as £79.99 which I personally feel is unreasonable.
I’d look for something a bit more reasonably priced, these days.
I use Strongbox Pro since years on iPhone, iPad and macOS.
It is really, really great and surpasses any other Keepass UI I know. The shared file follows the keepass spec and can be shared with different services (iCloud, …) between your devices.
You can also (though some don’t recommend it) also use it as 2FA authenticator and if you are a developer store your SSH keys in the container.
The only downside are shared password containers. You need to have a container available to everyone and share a common password.
