(SickWeather)

This app is sick.

Or wait, it helps you avoid being sick. That's even cooler.

Sickweather alerts users when they are near other people who have recently tweeted or updated their Facebook statuses complaining about feeling ill, the website explains.

It's available on smartphones, so users can be alerted when they walk into a particularly germ-y room, and on desktops as a Facebook app so they can prepare ahead of time.

The data collected by the app is then used to create maps that users can scan to see where the sickest parts of their locales are. It's like a weather app for health.

It also lets users notify the app when they're feeling sick so they can warn others.