How to free up cell phone space without deleting important photos?

Overburdened cell phones slow down and that is why the question arises of how to free up storage space without losing important photos, one of the most important affective treasures for many users. Before entering into this, it must be clarified that, although they are usually used as synonyms, memory and storage are not the same: while in the first one you save the downloaded programs or apps and the Android operating system, in the second you …