In the iOS QuestaGame application I am apparently unable to sync with iNaturalist. I log in to iNat exclusively via my Google account; is it probable that such accounts’ email/password info are not properly “recognized” by the QuestaGame/iNaturalist shared logins database?
Like @charlie said that is probably going to be something you are going to want to take up
With Questa Games support it sound like you are using there Apple App
I’ll see if I can find a link or look in the Apple App Store