After first Clean Master and now All In One Toolbox I'm now moving on to CCleaner. The other two got too obnoxious, naggy, and would change settings with updates. I don't mind an occasional banner ad for a free app or even paying for a good app. But those two got annoying. Been using CCleaner for years on my Windows computer and it's always stayed reliable. Hoping it will do the same on Android. Anyone else have any other app suggestions for device "cleaning" apps? Free or paid.