aivoton

Assuming that the Norwegian system is in anyway similar to the Finnish system I use, they just print the system id and the n:th of you on a piece of receipt while the system just checks that no similar register/customer id’s have passed.

We tested this with friends where multiple friends bought stuff from the same register, but exited using only a single one and they were usable afterwards, but only once per.

Kanji Study app on android, 30 minutes a day has worked for me. Costs $ 50 though.