This is the only reason I still use iCloud keychain in parallel with 1Password.
1Password for iOS integrates with Password AutoFill. Once enabled from the Passwords & Accounts Settings, you'll be able to fill and save passwords, without ever opening the 1Password app.
As you sign into accounts on iOS apps, you'll notice a key symbol with Passwords above your iOS keyboard. To save a Login, tap the key symbol and Create Login. Enter your username and password, or tap Generate New Password to automatically create a strong password. When you're done, tap Save & Fill. Going forward, you'll see your username above the keyboard, making signing in, in the future, easier than ever.
I recently added 1Password and Backblaze to my "home stack" to coordinate thing within my family. In addition, I use: 1Password - So my wife and I can share passwords Backblaze - Automated ackups...