Multi-factor authentication keeps your accounts secure. You can use Apple’s authenticator app with iCloud Keychain to make managing your codes easy.
another cross-platform TOTP authenticator
Apple-only. Previously well regarded, but suddenly changed hands suspiciously.
https://github.com/raivo-otp/marketing-website/pull/22
Learn what to do if you see the Activation Lock screen on your device, or if you're asked to remove Activation Lock on a device that's offline and not in your possession.
An iPad makes a great “kiosk” device–a tablet restricted to one specific app for your home or small business. You can create a makeshift kiosk using the Guided Access feature, or enable Single App Mode for a true kiosk environment.
TuneAid seems like it will let you play music from a connected iPhone without iTunes, maybe?
Universal Remote based on iTouch/iPhone