Practice giving presentations with Presentation Timer. Helps you practice giving presentations. Starts with a green light, turns to yellow when your time is about up, and then turns red. Version 2.00: First update in a long time. Update for more modern screen resolutions. Version 1.05: Options to keep phone display on. Special vibration mode for phones which don't wake from sleep. Version 1.04: Vibration mode Version 1.03: Handle back button.