I have purchased the Joulescope for a battery monitoring application and so far it works great (except for the crashes when removing markers).
One thing that I find missing (and that would be fairly easy to implement) is a decent charge display. The accumulated coulomb value is only visible in the multimeter view as a tiny figure besides the (for me uselessly) large Joule reading.
- Add coulomb (and maybe Ah) readout to the single value display
- Add option to replace the J reading (4th line in multimeter display) with Ah or C.