Calculate Tester
You have not run this app in the web browser you are currently using yet, so the web browser you are currently using does not store any data related to this app.
Explanation
This website uses your web browser's localStorage to remember the state/data of the BagaApps you run. By doing this, you can later resume running them as you left them (instead of losing all your data when closing them). Consequently, if you delete your web browser's data/browsing history, all your BagaApps' data will also be deleted, so think twice before you do that.