Great. Except no dual account sync. Open source equivalent of GTasks and Tasks Free. Both of which are good. But this is better  simpler  and open source. It also handles multiple accounts  although its UI doesn't make that clear. Just sign into the second one in settings. CORRECTION: I seem to have lost this ability and in fact the whole programme no longer syncs to either account properly. Strange. Also  if sync fails  uninstalling and re-installing seems to help.
December 29 2015