If resources are limited and you plan on charging any type of money for the app, either one time or as a subscription, it's almost always better to go iOS first

If resources are limited and you plan on charging any type of money for the app, either one time or as a subscription, it's almost always better to go iOS first and port to Android later. I obviously can't speak for the ecosystems as a whole but anecdotally of the last few companies I've worked for a strong majority of paying users came from iOS.