The forum is full of suggestions. If you’re asking, this is my whishlist, highest priority first.
- Proper magnetic compass support of course. That has been non-functional for a long time, at least now there is a warning that it doesn’t work.
- reliable and accurate GPS, reliable picture-saving. Not sure if this is fixed already, at least the forum entries don’t contain a positive answer from anyone ([bugreport] Some photos in a sequence get packed in the same place, Problems with the android app, GPS issue with Mapillary app only - #2 by Amiga4000 Android Crash - Orphaned Photos )
- Shutter priority, user configurable based on quality of built-in camera (Shutter Priority?)
- configurable acoustic alarm if any problem occurs.
- screen-off to avoid overheating and battery problems (I know that old discussion, but maybe there are new arguments?)
- preview that actually uses the maximum of the screen, without arbitrary grey borders
- Multiple sensor support, i.e. use normal wide-angle and ultra-wide-angle at the same time, or alternating. Is using a phone's wide angle camera possible?
Dual Camera Capture / use secondary Camera
Choosing which camera module to take photos - Manual upload of other directories with pictures not made by mapillary app, similar to desktop uploader. (Upload from camera roll, Uploading images from Open Camera - #5 by Klerik7)
- Configureable deletion after upload vs. just mark as uploaded
- Split map view for planning spontaneous tours, to see on which streets images exist. Preferable with a way to see image direction.
- Support for remote controlling various actioncams and 360° cams, for simultaneous, coordinated start/stop, time sync, etc., preferably multiple cams at the same time, not sure if that is possible technically.