iOS & Android Developer for GPS Audio Tour App | Swift + Kotlin
Fedir Klymenko
Echoes transforms your smartphone into a smart audio tour guide, offering immersive GPS-triggered walks created by artists, storytellers, and explorers worldwide.
The app delivers dynamic audio experiences that evolve as users move through geofenced areas, making city tours, historical site visits, and nature walks more engaging and interactive. With offline access and rich multimedia support, Echoes enables seamless exploration anytime, anywhere.
Key contributions:
Built GPS and iBeacon-triggered audio playback that unlocks content automatically as users move through geofenced areas
Developed map-based and search-based walk discovery with offline download and playback support
Integrated rich multimedia (voiceovers, music, video, images) for immersive storytelling experiences
Enabled user-generated content creation and publishing within the app
Implemented analytics to track engagement, tour completion rates, and performance
Maintained and optimized both platforms across full release cycles on Google Play and App Store
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Posted Nov 11, 2025
GPS-triggered audio tour app for iOS & Android. iBeacon, geofencing, offline playback, and white-label architecture powering 20+ branded apps.
