There’s no registration, you just start using it. You don’t even have to ask for a chart. Just generate a new UUID and start sending data.

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All you have to do is paste an img tag onto your site.

You can create as many charts as you like. Track everything.

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Dynamically load the image using JavaScript to track user actions. On the server-side, HTTP GET the image URL programmatically. You can also do this in your iPhone or Android app.

Chartaca counts every hit. There’s no limit on data points. Send as many as you like. Chartaca will just keep counting them.

Beeminder tracks your progress toward your goals

Anything you can put a periodic number on works (…)

If you go off track, you pledge money to stay on the road the next time, and if you go off track, we charge you.

… is a web-based time management and analytics tool for knowledge workers who want to be more efficient and productive.

… sits in the background and measures which application, web site or (optionally) document is actively being used.