أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
To develop an app like Instagram without hiring a professional developer and developing oneself does require knowledge of IT. It’s not necessary to get a bachelor's in IT as everything can be learned online in this digital world.
So yes you would require knowledge of IT to develop an app like Instagram or in another case you can hire professional developers who are aware of the development process.