What are some alternatives?
When comparing Questo | City Exploration Games and AirMeasure, you can also consider the following products
Adventurous - Pokemon Go for families
Apple ARKit - A framework to create Augmented Reality experiences for iOS
Run an Empire - Turn runs into adventures
SketchAR - Start drawing easily using augmented reality
World Brush - AR app where you paint on the real world for others to find
Made With ARKit - Hand-picked curation of the coolest stuff made with ARKit