This app was mentioned in 4 comments, with an average of 0.50 upvotes
I use a auto cache cleaner from the app store - https://play.google.com/store/apps/details?id=com.jrummy.cache.cleaner it's compatible with ALL of my devices and it's under 1MB including data - I schedule it to run every hour!
6 here - and same for me with the AYW?
I don't clean cache anymore - i sideloaded THIS APP on my fires and it cleans the cache every hour for me ;-)
https://play.google.com/store/apps/details?id=com.jrummy.cache.cleaner
when looking for apps like this look for a SMALL FOOTPRINT - this app is only 368K so there's no funny business going on behind the scenes that you don't know about. i set the auto clean for 1 hour - only problem is that i've noticed it doesn't work on Lollipop - but everything older it works fine - it's on ALL of my beermoney phones!
I use Cache Cleaner. It's not the prettiest app but it has small installation size and it cleans up all the cache which is very useful since on my galaxy s2 I'm in a constant struggle to get free space to install new apps.