K-Quests is a free iOS app that transforms South Korea's real-world locations into GPS-verified challenges. Walk to cherry blossom spots, complete 5 different challenge types (compass heading, walk tracking, hot-cold audio, haptic radar, compass radar), earn K-Points, collect badges, and climb 8 ranking tiers from Wanderer to Legend. Cherry Blossom Quest is live now — explore Korea's best blossom spots before the petals fall.