Avast Antivirus is an application that keeps your Android mobile device safe from malware, viruses and other threats. With regard to interface design, you will have to work with a clean and modern layout, this is a big plus. The scan button lets you start the scanning process very easy just with one tap. Another fancy app is the component called App Insights and it displays how much time you've invested inside your installed applications.
Keep in mind that while you're using your smartphone or tablet, over the time many useless files will take space on your device and you have to use the included Junk Cleaner tool. This one easily removes system caches, thumbnails from your gallery, junk files, and other unnecessary data. In case you have important photos that you want to be protected in case someone uses your phone, with the help of the Photo Vault you can secure these images with a pattern, PIN code or even fingerprint if your device has this technology built-in.
Another way the software protects your device against threats while browsing the Internet is thanks to Web Shield module. It blocks all infected links. In addition, the call blocking function is capable of stopping annoying callers from harassing you.