Your data is stored in Google Analytics and Google Spreadsheets, in an account owned by Martin Omander. Your data is not shared, rented or sold to any other third parties.

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Google logo

The Google logo is the property of Google, Inc. For other uses of the logo, see here.


The code for this web app was written by Martin Omander, Google Developer Relations (Twitter profile). Feel free to use the app if you need to raffle off something. If you like this app or have ideas for improvements, let me know!


The sound effects were downloaded from and are used (unmodified) under the Creative Commons Attribution 3.0 license. They have been recorded by:

  • Hole Punch: Simon Craggs
  • Tick: DeepFrozenApps
  • Applause: Yannick Lemieux


This app runs on App Engine, Google's serverless platform for building scalable web applications and mobile backends. Just upload your code and Google will manage your app's availability. There are no servers for you to provision or maintain. Sweet!

To find out more about Google's developer offerings, go to