Speed booster apps

Junk Manager

Clean Master - Antivirus, Applock & Cleaner

Phone Master–Junk Clean Master

Cache Cleaner-DU Speed Booster (booster & cleaner)

AVG Cleaner – Storage Cleaner

Avast Cleanup – Phone Cleaner

Cleaner - Boost, Clean, Space Cleaner

Booster & Cleaner - Keeps fast