Simplicity with options
Insight timer is easy to use just as a timer, with customizable bells and presets. But there are resources like talks and community for those who want them. I think its nice to see youve been meditating with x number of other people at the end of your session but you can turn this off if it bothers you. I think the battery issue has been fixed but you can always quit apps instead of letting them run in the background if youre really concerned about battery life anyway.
Rdogno about
Insight Timer–Meditate & Sleep, v12.2.3