Nova Clean is a cleaning app designed for Android phone users. Its main functions are: 1. Memory junk cleaning function can quickly remove useless files and caches, freeing up valuable storage space to store your wonderful things. 2. Nova Clean provides detailed battery information viewing function to help you monitor battery status in real time. 3. Built-in download speed test tool to keep you informed of the current file download status. 4. Unique mobile phone speaker cleaning function, which can remove dust and impurities in the speaker through intelligent vibration. Come and download Nova Clean to experience it！