I’ve been using Memory Zone on my Acer Iconia Android 4.2 tablet since January 2014. It has worked fine. I opened it yesterday and the “Backup / Restore” button was MIssing from the screen! Internal Memory & Memory Card are showing along with the Online Storage BUT the Backup / Restore is Gone and there is a tab in that spot with “OptiMem” showing. A option to automatically free up internal memory by moving data from Internal memory to the SD card (pictures, etc). I uninstalled Memory Zone and reinstalled it from Google Play, but still have the same problem.
I primarily used to program to backup files to Google Drive. Anyone have an answer as to why it’s now gone and/or how can I get it back?