There is one app which is exclusively present in the Jio Store on Jio Phone, but not on other phones.
It is the NM app (NM=Narendra Modi).
The official Narendra Modi app on Android play store has 5-10 mn downloads, but as you know, Jio Phone runs on KaiOS and the phone doesn’t allow third party apps yet.
Apart from Facebook, the first non-Jio app is the NM app.
Interesting, no?