The Spy app for Android is free to use, according to CNET. This app lets you see all communication happening on the particular phone. The app is suitable for monitoring the behavior of employees and children, tracking a lost phone, or recovering lost information.
Downloading the app is quick and easy, states CNET. The app works on Android version 2.3 and up. Once installed, the app doesn't use a lot of the phone’s resources and doesn't interfere with the workings of other applications running on the phone. The app also monitors social media communication, GPS coordinates, browser activities and many more logs, all for free.