Stample

Stample is a mobile app that allows you to collect virtual stamps--- not the kind you stick onto a letter, but the kind you get in your passport when you travel.

We have hidden our stamps on lots of cool real-world locations* for you to discover. If Stample is installed on your mobile device, all you need to do is be at such a location, and you'll be notified automatically. Then, collecting the stamp is as simple as tapping the screen!

Build your own collection of digital souvenirs, or trade stamps with friends to help each other. It's easy, fun, and 100% free!

Travel. Stamp. Collect. Can you find them all?

* Stample is currently kicking off in the Netherlands.

Main features:
- Collect stamps at interesting real-world locations
- View your collection on an interactive map
- Customize the colors of your stamps
- Trade stamps with friends
- Obtain achievements