twislim is a web app that allows users to find out how slim they are compared to other Twitter users.

Features:

• simple web UI requires entry of weight and height
• display shows as “slimmer than x % of all Twitosphere”
• ability to tweet results

The Good:

If you want to find out how slim you are compared to everyone else, then this could be the right tool for you. It might be possible to track your results over time, if you are trying to lose weight.

The Not-so-Good:

While twislim seems like a nifty idea, especially if you are trying to become slimmer, it isn’t clear at all how it works or whether the results are even valid. You simply enter your height and weight (or even better, a fictional height and weight), and a result is produced. One other limitation is that users can weigh no less than 30 kg and be no taller than 2.5 m.

Tweetwave.com rates it: ★