this post was submitted on 30 Jan 2025
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Privacy

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We all know Signal, Matrix, Telegram, SimpleX, etc... But if you can't access the internet you can't communicate. Pretty logic. But would it be possible, at least theoretically, to create an app that permits to message people even if the internet goes down?

It might be a dumb question I really have no idea to be honest.

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[–] IDKWhatUsernametoPutHereLolol@lemmy.dbzer0.com 1 points 1 month ago* (last edited 4 weeks ago)

deleted by creator

[–] shortwavesurfer@lemmy.zip 1 points 1 month ago

Briar or meshtastic

[–] Gayhitler@lemmy.ml 0 points 1 month ago

It’s not p2p but at least many years ago:

SMS.

If the Internet outage is local then the towers would still work and you’d be able to get texts. I went through a few storms where wired home internet was down, the towers weren’t giving me a data connection (no mobile web browsing or anything), but I was able to send and receive texts.

If you really care about what you’re asking after, do what someone else said and get a radio license. It’s 150 year old technology and every time something happens radio operators pop up some kind of emergency communications or bridge to the internet through repeaters or something.

[–] ThatGuyNamedZeus@feddit.org 0 points 1 month ago* (last edited 1 month ago) (1 children)

scratch telegram off that list, put Session messenger there instead.

Telegram isn't private, one guy has the master key to the whole thing

[–] Ju135@lemmings.world 0 points 1 month ago (1 children)

Yeah to be honest I don't even know how telegram became so popular in the "privacy-oriented world"

[–] CedarA64@lemm.ee 1 points 4 weeks ago

It's not owned by Meta and it's relatively well-known. It's older than Signal.