Bitchat – A decentralized messaging app that works over Bluetooth mesh networks

Very nice! Could this be published in the App Store, or does it use any APIs Apple considers off-limits?

I'm regularly frustrated by modern phone's complete inabilities to allow any communication when outside of mobile network or Wi-Fi coverage, not even within the two large walled gardens.

It would be so easy for Apple to extend iMessage to work peer-to-peer, at least between people that have already messaged each other before and while both screens are on. That's literally how AirDrop works, and having to send a "Notes" text back and forth is just silly.

Legit curious what the use case would be, that would justify Apple adding it in. Like, when do you need to text someone who's within Bluetooth range but somehow has no WiFi or cell reception?

Hiking, Airplane, stadia (here in India the tower capacity get exhausted), underground metro etc

Hiking? Probably not very useful since you must be within Bluetooth range and you can whisper to your chat partner.

If you're hiking in the remote area youre much better off with LoRaWAN or amateur radio transceivers anyway.