StrawberryCat Random Password Generator generates passwords from four customisable presets. Here is how it appears when it is first launched:

If you see a password you like, you can tap it to copy it to the clipboard. A tap on the regenerate button will create a new password from the same rules. The rules for each preset can be changed by tapping the edit button:

After editing to generate the kinds of passwords our MD uses on a regular basis, the main screen looks like this:

StrawberryCat Random Password Generator is available now on the iTunes App Store.