12. Lend your eyes to help the visually impaired.
This innovative iPhone app connects blind and visually impaired users to sighted volunteers. If the visually impaired person needs help, for example, having ingredients or cooking instructions read to them from a packet, a live video stream will start, and link to the volunteer's device in real time. It's pretty epic.
So, what are you waiting for? Sign up now, and you can get started straight away.