DefSquid is a popular Android and Firestick app that cleans, optimizes and protects your devices. This free to use app has a variety of functions to walk through. You can do everything from test your internet speed, to scanning for malware.

Who can use DefSquid?

DefSquid is an Android app and can be used on almost every device and in every country. Depending on your device, DefSquid will be available in the app store. If you can’t get it in the app store, you can follow the second party of this guide where we sideload it.