I am an amateur microstock photo contributor who happens to know some programming. I recently looked at the Google Play store for android apps that can help with metadata / keywording images, but nothing seemed satisfactory. Sure, there are a few apps that can read and write some exif fields, but they lack features that might be useful for someone who has to do this on many photos ... for e.g, it would be nice to do a one-click fill of some common fields (copyright, author name etc.) using a template, or at least auto-fill based on the last entry.

I was thinking if I should write some code for this, if at all I find the time ... I'm posting here to see how useful such an app might be to others, and what features they'd like to see in it. Let me know your thoughts.