MathByDoing.app
 
Select your own privacy level! Options:
  • Just press "Sign in" and continue with a random user name. Or...
  • Enter a user name of your choice and you will be able to look up your score in future sessions (This feature will be available shortly). Select a unique user name no one can guess. Or...
  • Enter a group user name (still unique) and share it with your peers, so you can build your score as a team.
Done
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