- Clean Master
What it is:
Another insanely popular “speed booster, battery saver, and phone optimizer”. It has 600 million users and 26 million five-star reviews
Why it’s bad:
Firstly, it’s made by Cheetah Mobile. We referred to them earlier – the company is renowned for packing ads, bloatware, and nag screens into their apps. Secondly, it doesn’t do anything useful; RAM-saving apps were valuable once upon a time, but the Android system has developed so much that they are merely a hindrance. Android now has its own native handler for assigning RAM and ensuring it’s all being used in the most optimal way – in many cases, it even deliberately keeps RAM loaded to help performance.
What you should use instead:
Honestly, nothing. If you really insist, SD Maid is your friend.