The Timer app is very simple and easy to use. Perfect for cooking, learning, exercise, workout, games, work or any other activity that needs to be completed in some exact period of time.
Once you've set the desired timer length and started timing, you can see how much time has elapsed and how much time is left. There is also an option to set an additional reminder at an arbitrary point before the deadline. When you close the app, the counter continues to run without wasting battery power. When it expires, a reminder is sent with an accompanying sound effect. The exact sound effects used at the beginning and the end of the timer can be selected in the settings.