Paranoid Android's Peek function is one of the coolest and most popular features of the ROM. It was so popular, in fact, that the functionality was ported into an app for any device on Android 4.4 to use. The only downside was that the app had to be sideloaded instead of being installed through the Play Store, so keeping it up to date would be a major headache.
Skip ahead a couple of weeks, and Peek has jumped onto the Play Store with some refreshing improvements and extra functionality. Navigating and setting up the app looks much, much better than the sideloaded version, and there a few new features like blacklisting specific apps. The whole experience is improved from top to bottom, and it really shows. The app runs about 4 bucks, which isn't too bad considering that it saves you the hassle of loading up a custom ROM.
If you're interested, you can check out a gallery of screenshots from the app and the download link below.
Play Store Download Link
