Dr. Alexander Rieger

The new app Room Window brings the natural light of a real window to any windowless room. The phone or tablet is placed near the wall and mimics daylight, including sunrise and sunset.

A gentle alarm clock app for Muslims automatically sets the alarm time before sunrise and gradually brightens the screen to simulate waking up naturally in daylight. This helps avoid dizziness when waking up early for Suhoor and Fajr prayers.

In the App Fit4All, physiotherapists have selected the best workout videos from YouTube and assigned scores for the relevant muscle parts. This allows one to choose the perfect workout, just like with a fitness coach. And this also for non-athletes.

The App "Gentle Wakeup" is a sunrise simulator for Android which wakes people up by light. People feel like waking up in the summer while it is still dark in the morning.

The App "Gentle Wakeup" turns an Android device into a sunrise simulator which wakes people up by light. All premium functions can be unlocked freely until April 17th using the code 5z867260749w91.

The app "Gentle Wakeup" turns an Android device into a sunrise simulator which wakes people up by light. Changing from an alarm clock to a wake up light make people wake up refreshed in the most natural way.