Clean Master----play the necessary mobile phone space optimization garbage cleaning assistant! Clean Master to help you better manage your phone while saving storage space on your phone. Clean your photo library • Find and remove similar, old, and poor quality (too bright, dark, or unfocused) photos • Reduce file sizes with Low, Moderate, High, and Aggressive file compression, and move originals into cloud storage • Delete photos from private chats Disclaimer: Certain automatic profiles are automatically triggered based on your device's location, which requires access to location data we'll be using in the background. We'll ask for permission to access this data before using it.