Simple  beautiful. No permissions  doesn't try to sell me anything.Esthetically pleasing and it does just what it says it does and nothing else. Thank you for this lovely app. For those of you who are having trouble getting it to work properly  with the Android 6.0 update  you now control more permissions. On the app  go into settings  (the 3 little dots in the upper right hand corner)  and scroll down until you get to 'stay awake'. Click the box next to it and that will keep your phone from going to sleep while using. 😃