Question

I can't really answer your question, but still have some advice :)
Put your question in the title, for example "which do you think is better for mobile development: angular, react or django? And why?"
Maybe add the #mobile or #help tag, that way you will get a better target audience for your question.

Lots of possibilities:

• If you wanna use the web technologies (HTML/JS/CSS, Angular, React, Vue, Svelte...) you can use ionic/capacitor capacitorjs.com/
• If you wanna have all native access but write code once (so not for android and iOS two different apps). You can use Flutter, Dart, React Native or Nativescript
• You can also make a Progressive Web App. Benefits of PWA's: they are fast, small sized (4 ~ 10 KB) and use the simple well known web techniques.

It depends

Angular & React can be used to develop Frontend Web. It runs on a browser.

Django runs on server

If you want to develop IOS and android, you can take a look at React Native or Flutter.