Dr. Booster smartly frees up memory space (RAM) and removes viruses and junk cache, so you can play your favorite games faster and smoother, plus more than 69000 different apps like Facebook, WeChat, LINE, Whatsapp, Instagram, and Skype. Ranked #1 Top New Free app in Widgets category within 2 weeks of release! Boosted app speed performance 14 million times by 22% on average.