I am unable to move apps in SD card. It says not enough space/storage eventhough I've already deleted my SD card file. I am unable to reformat too... Please help
Apps can only be moved to SD card if the devs wrote the code to allow it.
In any case, you still only move a small part of the app. This means you now have an app on two places. If your SD card gets corrupted, your apps won't work.
If you have a recent Samsung, activate developer settings, then scroll to the bottom of it and turn on force move apps to SD card. This should work regardless because it ignores the manifest in the app which says whether or not the app can be moved. However apps that are forced move can stop working or not work perfectly since they're not really coded for that.