Maybe it's the bad UI but I couldn't find a way to update tags.
Writes the tags you need, could use UX love The user interface could use some work (home-> program settings-> metadata tags is where you go to change the tags, and I assumed home lead to the root folder) and it could use a lookup of tags exiftool supports, but unlike most android metadata apps, it will actually write the full breadth of tags, including xmp.
Great Product Really I am very impressed! Hope to see some improvements with batch editing as far as speed and simplicity. That said, great job and thank you very much. I'm hooked!
o Support for Android 7 split-screen.
o Minor fixes.