The font for the exercise title is too small and can barely be seen during the workout.
If you make the font larger, it won't fit on the screen, and there's no way to move it to the second line (or make it crawling text).
Extraneous information that's completely unnecessary during a workout is displayed on the screen and distracts. I don't even care what the sound file is called for a specific exercise. And there's no way to turn it off.
This is what it should look like for the app to be a truly working training tool, and not a task tracker.
(The apps on the left use a crawling text effect for their title)
TimeR Machine: version 7.7.0 (App installed from F-Droid)