Dr. Web is the over price anti-virus you can ever find on google play. It cost about 75 dollar. That is crazy. It has a built-in firewall that you have full control of. You can block several app that connect to and from the internet. It was made by a anti-malware company in Russia. It was born in 1992 and is still standing as in now. It can detect almost every kind of virus in app and malicious website. It even detect that your text message app which was modified to be vulnerable to intruders like all those Metropcs phone. That my friend can not be fix unless you buy a the latest unlock phone with 6.0 OS that accept Metropcs service. You can try it out for free. How? Well here the license key DSCB-7A5L-8LY4-Y726. Feel free to use it. Vote and Follow. Also Thank for reading.