this probably isn't possible,but I was wondering if there was any way to export a save file from the current version so I could delete the app but play from where I left off when it gets updated, I'm playing on Android mobile, in case that matters.

If not, that's fine, but I'd like confirmation.

There's no way in-game in this version, 0.56.3; the next public version (current patron version) adds Ren'Py Sync, which would let you transfer the saves to another platform, including web.

That said, the save files are stored on the phone (maybe in the SD card) at: Android\data\com.phanes.ruinme\files\saves

Backing up the files in that directory (using a computer) and restoring them when you reinstall should restore your saves, but do so at your own risk.