Smart alarm clock with sleep cycle tracking. Wakes you gently in optimal moment for pleasant mornings. Sleep as Android is a swissknife tool for your sleep. Gentle volume increasing nature sound alarms (birds, sea, storm...) Nature sound lullabies (whales, storm, sea, chants..) The app features a series of alarm tasks called CAPCTHA which make sure you do not oversleep. Completing tasks like sheep counting, math equations or scanning a bar-code on your toothpaste will make sure you are fully awake and ready for your morning. To make sure you won\'t sleep through your duties the app may use an Accessibility Service to prevent you from force stopping the app or turning off the device (cheating) before completing the alarm tasks (CAPTCHA). No private information are collected. This app may use the Device Administrator permission. The reason is effective CAPTCHA (a feature to make sure you wake up in the morning) so you cannot avoid alarms by uninstalling the app during an alarm. Sleep as Android is not intended for medical use, but instead to improve general fitness and well-being especially in terms of better sleep. Any oxygen saturation tracking is performed with compatible oximeter devices such as the TicWatch Pro, BerryMed oximeters... Many thanks to our users for using and supporting this apps!