the start has been made

Have downloaded looking for the boss .... this app Kochmeister app and am pleasantly surprised. Search recipe, enter batch number assigned to Shopping List (there you can then even individual make additions) and the list then even send it via email. Super.
Have liked two recipes. This, however, I could no longer make or Undelete. Maybe you can correct that?
In any case, before a recommendation.
Incidentally, the list also works offline.