What are some alternatives?
When comparing OCM (Open Cache Manager) and Geocaching, you can also consider the following products
c:geo - c:geo is simple yet powerful unofficial geocaching client for Android devices.
Ingress - Winner of the Grand Prize at the 2015 Japanese Media Arts Festival Ingress transforms the real world into the landscape for a global game of mystery, intrigue, and competition. Our future is at stake.
iCaching - iCaching is the all-in-one Geocache manager for the Mac.
Pokémon GO - Pokémon GO was first introduced in 2016 and immediately became a cultural phenomenon. The game is designed to be played on mobile devices and is available for both the Android and iOS platforms.
GlobalBucket - Application for sharing the nicest places and the best activities on earth.
Layar - Layar is the global leader in augmented reality and interactive print technology. Print materials spring to life with digital content using the world’s #1 augmented reality app.