Envisage - Inject contextual help on your site. Point and click style.
Woolah - Knockout Photo challenges with your friends.
Moonshot - Discover trending cryptocurrencies priced at less than a penny
QuizUp - QuizUp gives you the opportunity to test your trivia skills against friends and strangers throughout the world.
Product Fit - Measure product/market fit in app with your users.
2016 Photo Challenge - Take a photo every day for 366 days