Droid Timer and Stopwatch by BetterOpts is a free utility app available on Android. It is a simple and easy-to-use digital timer and stopwatch that offers a user-friendly and aesthetically pleasing interface. The app allows you to effortlessly switch between stopwatch and timer modes using the menu.

The timer feature of Droid Timer and Stopwatch is particularly noteworthy. When the timer counts down to zero, the phone vibrates and emits a sound that is equivalent to the notification sound. The volume is also the same as the notification sound volume. This feature is especially useful when you need to keep track of time without having to constantly check your phone.