I have been using this antivirus from 1 year.It does the awesome work.I never had any lagging issue or virus in my mobile.It also uses less memory compared to other antiviruses.The price of this antivirus is also less, if u want to go for its full version.This antivirus is also available for PC.It also boost our RAM.If you have this antivirus, then You are safe.It removes all the junk files from mobile.