There is one Convosphere feature we always explain twice, because nobody believes it the first time: GeoChat works without internet. Nearby phones find each other over Bluetooth and messages hop from pocket to pocket, in a small network that exists only there, only then.
We built it thinking about the boring cases and the serious ones. The concert where the cell tower is saturated. The mountain hut. The blackout. The march. All the places where people are physically together and digitally cut off.
Why it makes sense here
An offline global social network means nothing: with no network there is no “global”. An offline proximity chat is almost a tautology. The people you want to talk to are already within radio range. The network was only ever a middleman, and middlemen can be removed.
It is the radius idea taken to its extreme consequence: if a conversation belongs to whoever is close, it must be able to exist even when closeness is all there is.
The limits, stated plainly
Range is Bluetooth range, a few dozen meters per hop. Messages are text only. Battery drains a little faster. It does not replace the network: it covers the ground where the network retreats. That feels like an honest trade, and the people who used it at a festival agreed.