Hold

When you want to focus on something, whether it’s work, exercise, relaxing or even just watching TV, open Hold and press Start.

You can join a leaderboard of your friends and even against other college students.

For each 20 minute period you have the app open and are not using your phone, you get 10 points. Offers and rewards change weekly but when I was writing this article you could get a mens razor for 150 points, a free popcorn at Vue cinemas for 100 points or 50% off a magazine subscription.