The latest update of GYMer (2.5.4) and GYMer Pro (2.2.3) includes a considerable improvement in the rest timer. Several users have experienced the timer stopping on its own when other apps were open on their device, taking up system resources. The timer is now a service that runs in the foreground and will place a notification in the notification drawer as long as the timer is running. The timer should continue to run even when the demand on the operating system is high from other applications. Upon completion of the timer, your default Alarm tone will play for 2 seconds, and your device will vibrate, if it has that capability. As always, if you do not want the timer to play a sound on completion, simply go to settings and uncheck "Play Timer Sound."