Periodic Vibration is a repeat timer app that can be used as a reminder to stay awake during meetings, classes, training, and more. It can also be used as a method to improve your overall health by helping you to stay physically and mentally fit. It is a simple and easy-to-use application that will make your phone vibrate periodically at specified intervals. This app also has a built-in mechanism that will check your phone's battery level and will automatically stop the application if the battery level is too low. It is a very useful application that can be used for various purposes. It can be used as a method to improve your overall health by helping you to stay physically and mentally fit.