What are some alternatives?
When comparing Pokemon or Cryptocurrency? and Scavenger, you can also consider the following products
Questo | City Exploration Games - Play a real-world city game on mobile @ the best travel app
Treasure Hunt - A scavenger hunt app for kids, powered by machine learning
World Brush - AR app where you paint on the real world for others to find
Sidekix - The ultimate navigation app for walking
Harry Potter: Wizards Unite - A Pokemon Go-style Harry Potter game by Niantic 🧙♂️
Detour - Immersive audio walks, now in 17 cities