They got compromised very famously not too long ago. I wouldn't touch this service of those like it with a 10ft. pole.
https://www.hackread.com/lastpass-hacked-this-time-for-good/
If you need to make sure your login info is synced across various devices, platforms, etc. **both Firefox, Opera and Chrome already do that natively** (I am not sure if Opera runs on iOS). I do not ever recall their servers or databases having been compromised and they encrypt your data with a key or passphrase of your choosing.
https://www.hackread.com/lastpass-hacked-this-time-for-good/
If you need to make sure your login info is synced across various devices, platforms, etc. **both Firefox, Opera and Chrome already do that natively** (I am not sure if Opera runs on iOS). I do not ever recall their servers or databases having been compromised and they encrypt your data with a key or passphrase of your choosing.