What are some alternatives?
When comparing MobiKin Cleaner for iOS and SD Maid, you can also consider the following products
CCleaner - CCleaner cleans, speeds up and frees up space on business endpoints.
Clean Master - Some users swear by it, some call it a glorified snake oil that does more harm than good. That can be said about any snake oil, but what specific brand of snake oil can boast almost a billion downloads around the world?
BleachBit - When your computer is getting full, BleachBit quickly frees disk space.
AppleJack - AppleJack is a user friendly troubleshooting assistant for Mac OS X.
Glary Utilities - The Official Website of Glary Utilities.
Avast Cleanup - Next generation tuneup and cleanup for your PC