Clean master is a great app for cleaning junk and cache file from your devices. The application is free of cost and available an android and ios. I have used this application in samsung galaxy y, xiomi mi4i and samsung galaxy j7. The performance is good in every phone.
It clears all the junk and cache files and boost your phone performance. Tge size o the application is very low. And it take very lass amount of space on your devices.