KotlinConf Locator app for iPhone and iPad
Find the magic spots in the conference venue using hints about their location and learn new facts about the Kotlin programming language and tools. Magic spots are marked with Low Energy Bluetooth beacons and can be discovered by being within a certain distance of them. When a device is close, a visual indicator and optional vibrational feedback will indicate the proximity. You need to locate 6 beacons to complete the game.
Enjoy and good luck!