Actionbound is described as 'Take people on real-world treasure hunts and guided walks'. There are more than 10 games similar to Actionbound for a variety of platforms, including iPhone, Android, Windows, Online / Web-based and iPad. The best alternative is Geocaching, which is free. Other Actionbound like games are c:geo (Free, Open Source), iCaching (Paid), Play Munzee (Freemium) and GSAK (Geocaching Swiss Army Knife) (Freemium).
Supercharge your geocaching adventures with the official, full-featured Geocaching App. There are millions of geocaches waiting to be found, scattered throughout more than 185 countries around the world—there are probably even some near you right now.
Track down QR Codes hidden in the real world and capture them for points. Whether you are a casual player, an avid explorer, or a hardcore competition enthusiast, Munzee helps you rediscover the world around you.