If you’re up for it, it’s generally better to not backup everything. Only backup the data that you need. Like a database. Or photos, music, movies, etc. for personal data. For everything else, it’s best to automate the install and maintenance of your server.
As the person criticizing the top level comments, I just want to say thanks. This is a straight answer and an option that I wasn’t aware of. Looking into it!
While the other responses so far have good info, none has offered a useful answer. Yes, apple collects data, but thankfully don’t sell it to the world. Buying a new phone isn’t a trivial expense so some of us are stuck for a bit. As a fellow IOS user (for now), I too would like to hear some more options.
The best I’ve found so far is Typewise. They claim to be private and secure but it’s closed source so so knows. Apple gets to review their code when submitting to the app store which says that Typewise collects some data but none of it is linked to the user. It’s freemium. Unfortunately, I don’t like their keyboard. Swipe typing is my personal requirement🙂
Bitwarden uses end to end encryption. This severely reduces the risk their infra is attacked. The encryption keys exist on your devices only so it’s impossible to read the server side data.
The only real question is how much you trust Bitwarden as a company. Are they completely lying about E2EE to customers and auditors? If not, then Bitwarden is a good choice.