The cassettes
Making one on iPhone and iPad
Albumary's app screens are currently shown in English.
Making one
A bar sits at the foot of the screen, counting, and saying plainly what it is.

Pull it up and the songs are there. Drag them into the order you want; the red mark takes one back off. Then two ways to finish, and you pick one.

Name it and press Record.

Choose a tape from your shelf and press Add to cassette. The button changes because the act does — you're not making something, you're adding to something that exists.