Timer doesn't work doesn't make a sound until you open the app which is pointless when I'm cooking. Also I have to have my alarm at the lowest setting. However, the volume constantly changes itself to a volume louder than the middle which is way too loud for me. Every night I have to double check that the volume is the volume I want. The only reasons why I don't get rid of this app is because I like the stopwatch better than the Samsung clock app & I can't adjust the volume on that app either.