You can restore your wallet from your keystore as long as you have iCloud Keystore turned on and you’ll need to remember the password you used to create the wallet. The password isn’t to log into Minke, but rather encrypt the file that holds your private keys. Instructions on how to turn on iCloud Keystore are here: https://support.apple.com/en-us/HT204085

If you’ve manually backed up your private key, you can also import a wallet and enter your 12 word secret phrase into Minke on a new phone.