Silent Presentation Timer is a free presentation timer app for Android devices developed by PaPaČut. This app is perfect for anyone who needs a timer during meetings, lectures, or presentations. The app is designed to be unobtrusive, as it can be kept in your pocket during use and will alert you with silent vibrations.

One of the best features of this app is its full Android Wear/smartwatch support, which allows you to use the app on both your phone and smartwatch. You can also configure the length of your presentation and choose between green, orange, and red indicators to know how much time is left for your presentation. The app also has an optional overdue time measurement feature that can be represented by a violet indicator.

Silent Presentation Timer can run in the background and will continue to indicate intervals through vibrations even if you switch to another application. Additionally, the timer will not stop if you receive an incoming call or change the orientation of your phone. The app also has an optional screen dimming feature to save battery life.

Overall, Silent Presentation Timer is a user-friendly and reliable app that can help make your presentations, lectures, and meetings run smoothly.