Aha! Take that Nintendo! I completed your IAP’d up game without paying a single penny!
Although I should temper that with two things: 1) I never saw the need to pay any money, and 2) where do you even pay money anyway? It was, however, a bit of a grind for the last two worlds due to me not having any decent psychic or electric pokémon.
I think I probably spent around two-thirds of the entire time I played just trying the final few levels on worlds 9 and 10 over and over, slowly levelling up and gaining slightly better power stones, whilst making meals to coax more pokémon into my garden just to use them up in training.
After finally beating those levels, the final boss was actually a walkover taking just three attempts, and then that was it.
Now I’ve some sort of NG+ unlocked, but I don’t think I can be bothered with it. Pokémon Quest started out fun but if it wasn’t for the fact I could stick it on Auto and let it pretty much play itself I’d have given up on it quite some time ago. Even with that, I’ve had enough now.