Currently the new Android app can only mash video at 720p, regardless of the input video resolution.
The old app was able to mash at full HD 1080p if you selected it in options. Mashing was slow, but that's tolerable.
This is really a must have for me, as there's no point in using the app if the output video looks terrible (at 720p).
4K would be a nice-to-have, but 1080p is really the minimum.
Hope y'all will consider this, thanks!