Great for teachers and massage therapists!

I have used Time Timer physical clocks for years in my classrooms and while doing chair massages at events. I can track how much time is left in an activity from far away with a quick glance. Now I will be able to set my phone where others can see how much time is left until their turn in the massage chair. No disturbing noises and no interrupting the person receiving a massage.
I suspect the lack of rotational ability will be a hassle as previously noted above.

HandsHeal about Time Timer, v3.1.3