This app makes us nostalgic for 10 years ago, when ratings sites caught on and we were suddenly spending free time judging people's faces, bodies, cars, and even pets. Apparently the best known rating site, Hot or Not, is still around, and it's just created this fun little diversion.

Hot or Not (available here) invites people, typically attractive young people, to post their photos online for others to judge. You rate each face from 1 to 10, and then you can see how your rating compares with that person's average score.

The site branched into a hook-up stop long ago, so if you're on the market you can try to meet your crushes. We didn't test that part.

Now, the app is far from perfect. You can enter your preferences for whom you'd like to rate (male or female, age range, and so on), but it won't remember your settings from one session to the next. Also, it crashes reliably after a few minutes of use. But for a simple time-killer, a few minutes is all we need anyway.