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Søren Beck Jensen
Søren Beck Jensen

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Building Ping Hunt: a GPS treasure hunt app for iOS and Android

Looking for a treasure hunt near you? Ping Hunt turns an ordinary walk into a GPS scavenger hunt — you follow waypoints to real places and match what you see against the viewfinder.

I have been building Ping Hunt as a small solo mobile project, and you can find it here:

https://www.pinghunt.com

It is available on both platforms:

How it works

  1. Open the app and pick a hunt near you.
  2. Follow the GPS coordinates to each waypoint.
  3. Match the view in the camera viewfinder to unlock the next step.

No setup, no library of pre-made caches to manage — you just open the app and play the hunt that is right in front of you.

Why I built it

Modern phones already know exactly where you are and what you are looking at. The hard part was never the GPS; it was turning "you are here" into something that feels like play. So Ping Hunt removes the busywork of classic geocaching — logging finds, maintaining a profile, managing dozens of tiny icons in a map — and keeps the part that is fun: walking somewhere because there is a small mystery waiting there.

Building in public

The app is still young and I ship it in public. Every release, including the rebrand from "Scavenger Hunt" to "Ping Hunt", the Google sign-in flow, hunt sharing, the reworked hunt details page and the Android launch, is written up on the site's building in public page. If you are a mobile developer working on something similar, I would be glad to compare notes.

If you try it and want to tell me what worked or what broke, you can reach me via the contact page.

Happy hunting.

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