An app that enlarges difficult-to-read text by 3 magnification levels and changes the contrast to 5 different viewing modes. Optionally, the LED flash helps users see better in low-light conditions.
An app that allows users to test their reflexes against faster and faster challenges. They can listen for the instruction and do it as fast as they can -- touch, swipe up, swipe down, swipe left, swipe right, shake, pinch, and two-finger touch.
A weather radio that can be powered via the integrated solar panel, hand crank or standard home outlet. It's also a portable smartphone charger and LED flashlight.