Are you tired of eggs that are always too soft or to hard? No matter where you are or how big your egg is – the perfect egg timer for perfect eggs is the solution! The perfect egg-timer is based on scientific proof and because every egg is different, the timer calculates the exact cooking time based on egg size, altitude and temperature. Usage: In order to measure the exact size of your egg, simply place it on your Android-Phone and set the size using your fingertip for. Determine your current altitude (or let it be determined by GPS), tell your Android-Phone if you kept your eggs in the freezer or at room temperature and how you would like to have your eggs