Instead of relying on proprietary software that is out of your control for storing your passwords (and getting burned like you have described), why not use some

Instead of relying on proprietary software that is out of your control for storing your passwords (and getting burned like you have described), why not use something open source like KeePass? I don't have an iPhone, but on Android there is KeePass2Android, which is open source and (if you choose to use it as such) offline-only.