Just set and remember crucial password. Thats all you need to create secure storage.
From now on, you can add various confidential information (e.g. passwords, credentials) and dont worry about someone gaining access to it, because the storage is closed even when your phone falls asleep.
You dont have to carry on all your bonus cards from the shops with you when you go shopping. Stack them up in the MySecrets+ and switch toggle "Show as barcode" for quick scan at the supermarket.
No need to constantly enter a password to unlock the storage, you can use Touch ID / Face ID and get access instantly.