They might transmit your location on real time?
They might track you and your activities even when you’re not using them?
They might blow through your data cap by uploading and downloading data?

A new Android tool called SpyAware aims to shed some light on this situation. It gives you a better idea of what your phone is doing when you’re not using those apps.

This tool will run on any android phone and will give you complete access to your phone’s operating system. The tool is an effort to increase awareness of what data mobile apps are collecting and how that data is being used.

After you install SpyAware, the app gives your phone an overall score based on how at risk the app thinks your device is. It also tells you how much data it has been using while you were not using your phone and which apps were active behind your back.

You can can upgrade to the full version of this aap by paying USD 3 and things get really interesting after that. You can then see how dangerous SpyAware thinks each app on your phone could be based on “risky” permissions such as the ability to read your text messages, take pictures or record audio.

You can also see how much data each app uses, how often it collects your location information, and where it sends data. Importantly, it lets you know what the apps that came preloaded on your phone—the ones that you never gave any permissions to at all—are doing.

If you find an app that you think is particularly suspicious, the “Take Action” screen includes options for uninstalling an app, reporting it to the FCC, leaving a review in Google’s Play Store, or sharing your findings on social media.

The main issue, however, is that if you have an app that’s useful to you but requires excessive permissions, there’s not much you can do other than uninstall it.