I've been working on a web app which counts your pushups via your webcam.

You place your laptop/phone on the floor, do pushups whilst looking at the camera, and the app counts how many you do.

I integrated this functionality into an alarm clock which you can only turn off by doing a preset number of pushups.

I've posted it here for two reasons.

First to see if it works. It work well for me. BUT, there must be a data/sample bias based on how I do pushups.

Second, to see if people get value from this.

Would appreciate feedback around how well it counts pushups (if you can't do pushups, you can try sit-ups, just make sure your head leaves the camera at the top). And let me know if you are interested in future testing.