Are there any good cleaning apps that actually work?

[Moogka]

Are there any good cleaning apps that actually work 

[ZelNet]

For removing files or just freeing up processing power?

[Moogka]

Freeing up processing power

[cchat9000]

The built in app works fairly decent but if you are looking for more then I have used CCleaner

[ZelNet · Accepted solution]

https://play.google.com/store/apps/details?id=com.glgjing.marvel this is the best I've found

[Moogka]

Thanks