Wildlife Photography Journal App

I'm seeking an experienced mobile app developer to create a wildlife photography scavenger hunt & journal app available on both iOS (required) and Android (preferred). Think Pokémon Go meets iNaturalist, designed for casual players who want a reason to go outside... (Budget: $750 - $1500 USD, Jobs: AI Model Development, API Development, Full Stack Development, Graphic Design, iOS Development, Mobile App Development, Photography, User Experience Research, User Interface / IA)