What does it do?

Math practice http://arcadejack.com

This is exactly what my son needs right now.

Thank you so much!

2x the userbase overnight? Is this growth hacking?

Found that hockey stick growth. Time to call up some VCs.

Just tried it. Nice. Couple of "issues" a) Answers are carrying over from one question to the next and not getting cleared automatically b) When I answer a question, the animation disables the controls and I have to click again to enable and move to next question.

Tested on 74.0 (64-bit) on OSX. These might not be "issues" and how you defined the experience for your little one. If so, feel free to ignore.

Thanks for checking it out. a) seems like a bug, but I can't recreate. After I click "next" for the next problem, the answer field is empty. Let me test some more b) yes, this is indeed a weird UX and my daughter said it is "annoying". But it exists so that the kid gets a pause to know whether the answer was right or wrong. I should maybe show it for 3 seconds and proceed to next automatically.

Will upload new version of the site tomorrow now that I have a full two users for the app :)