I've been playing a new app called Seek Adventure for the last few weeks.

It's basically Pokemon Go for adults with real prizes. There are chests all over your local area. They've hidden pieces of a prize in different chests. You need to visit the chests and open them see whats inside. Most chests don't require anything to open. Some chests require keys and have more inside. If you can get all the pieces you win the prize - $500/$20/$10 Amazon gift cards, 50" 4K TV, Echo Dots, etc. They also run daily competitions for various things.

Give it a try here - Seek App Registration