It's actually the opposite. You have the older version APK where you can login with Jio ID/number, whereas @Appu guru has the early access latest version that requires JioFiber linked number to access the app.
For more information, go through this thread, you'll find all the details:
Hotstar live channels play only on Jio network.
You can login with Jio fiber/airfiber ID, connect STB to Jio 5G phone hotspot and also access everything.
Jio airfiber STB also works with Jio 5G hotspot