Sports Tipster Betting Platform

I’m building a public tipster playground similar to the demo at https://beta.asianbookie.net/en/tipster, but with my own branding and rules. The product must run smoothly on the web as well as native iOS and Android, all wrapped in a lively, sports-focused look and feel... (Budget: $750 - $1500 USD, Jobs: Android, Flutter, iPhone, Laravel, Mobile App Development, Node.js, PHP, React Native)