If you've ever gotten so deep in the weeds on a sketch that it seems easier to go back to an earlier version, there's good news. TOTAL for Mobile allows you to restore recent sketches.
If you're on a tablet and want to restore a recent sketch, simply tap the clock icon ( ) on the upper right, and choose a previously saved version of your sketch to restore it.
From an iPhone or a similar device with a smaller screen, just press the more options button ( ) on the upper right, tap Recent Sketches, and choose the version you want to restore.