Volume keys are not just for changing volume. It is also for locking apps now.Addictive tips, lifehacker reviews the app as unique.Hilariously brilliant and effective. Application locker does not use any on screen password ie. pin based or a pattern based locking system.We use volume key pattern as the password. You can make any pattern … Continue reading Most Powerful & Unique Lock Mobile By Volume Keys | Best Screen Lock Ever 2022