The question is whether using Yo is more practical than using a Timer app, which is native to every smartphone released in the past 5 years.
It isn't.
Re:Show HN: YO egg-timer
by icebraining on Thursday July 24, 2014 @04:34PM
(#8082015)
It might be, if you can't remember how many minutes it should be. I have to admit I always have to look it up,
And behold, here is a use for the Yo app...interesting...