Yes you can!
To use Fiit on your iPad or alternative iOS device:
- Log into the app on your iPhone
- Go to Settings > MyFiit > Tap your initials in the top right to open the Profile screen
- Go to "Change password" at the bottom
- Set up a password for your account
Now, instead of logging in with a magic link, you can log in with the password you’ve just setup, and use the app on your iPad or alternative iOS device.