Cool It
Requires device admin rights! Accept device admin rights when requested!

Requires Android 4.0.3 or newer!

An application that permanently watches your device temperature. If the device gets too hot, all running apps are suspended and the device screen is switched off. Often background apps are using up CPU and this can cause overheating of your device. With this app you can automatically stop applications and help to cool down your device.

Home launcher widget allows to watch your device temperature. Click on the widget to open the application

Permissions needed:
Kill background processes -> to lower workload on CPU
SD-card write settings -> to store settings
Receive boot completed -> to start the background service after phone reset or switched on
Battery statistics -> to read the battery temperature
Internet access -> for the ads
Access network state -> for the ads

The app is open source and the source is published on Github: http://goo.gl/B7pZ44
Source code documents: http://goo.gl/Jo9ZgR

To uninstall you have to go to Android settings, then to Device Administrators. There you remove CoolIt from the list. After that you can uninstall the app.

Screenshots: