I have used KeePass for 10+ years and used Android and Windows when I first set it up. Now I need it to work on iOS, Android, Window and Linux and moving away from KeePass was not an option I wanted to consider.

My solution is to use KeePassXC on Windows/Linux^1^, KeePassDX on Android and Strongbox on iOS. To sync the file between all units, I use Syncthing (MöbiusSync on iOS). I have a server always online running syncthing to make sure that at least on node has the latest version.

The only problem I have with this setup is that Strongbox does not auto update, I have to select open existing file and select the same kdbx file (and Strongbox will update the vault etc). Saving changes does not seem to be a problem but I usually do a manual scan in MöbiusSync to make sure updates are pushed.

[1] The reason I use KeePassXC over vanilla KeePass is because the devs from KeePassXC and Strongbox communicate to make sure their applications are compatible. A file created with one works with the other seamlessly.