You might have had a feeling that your phone is slow and clanky, and it takes a lot of time to launch apps or open websites. This feeling is caused by something called "Junk Cleaning", which is the process of getting rid of unused files, cache files, and other junk data that take up space on your phone. This process is sometimes referred to as "Memory Cleaning", "Phone Cleanup", or "Cleanup". The junk is usually stored in the phone's memory and can slow down the phone's operation. It can also cause crashes.

Junk Cleaning can be a real headache, especially if you have a large phone with a lot of cache. Sometimes it is necessary to do a complete Junk Cleaning and get your phone's memory usage back to the normal level.