Scavenger - An augmented reality scavenger hunt for cash prizes
Detour - Immersive audio walks, now in 17 cities
Gift Hunt for WordPress - Online treasure hunt on your WordPress site
Guides by Lonely Planet - Explore city guides curated by experts.
Emoji Scavenger Hunt with Google - Use Google's neural networks to guess emojis IRL 🔍
Flamyngo - Create a city guide with help of your friends.