Offline communication guides
Articles about messaging without internet, Bluetooth, Wi-Fi Direct, mesh networks and setting up offChat on Android.
- How to send messages from a phone without the internet
What an Android phone can still do without mobile data: Bluetooth, Wi-Fi Direct, a local mesh and the role of offChat.
- How Bluetooth communication between devices works
Bluetooth is a short-range radio. Here is what that means for local messaging and for offChat.
- Wi-Fi Direct: what it is and how it works
Wi-Fi Direct links two devices over the Wi-Fi radio, with no router. It is not a hotspot and not classic Bluetooth.
- P2P mesh networks: ideas, benefits and limits
A local P2P mesh only exists while intermediate devices are present. See the benefits and what the offChat mesh does not promise.
- How to communicate on trips with limited internet
Trails, roads and campsites: what a group in the same place can still do when carrier signal fails.
- Bluetooth vs Wi-Fi Direct vs mesh networking
Three different local-communication layers. None of them is the internet and none replaces the others.
- Offline messaging apps: how to choose
Verifiable criteria for an offline messaging app: platform, radios, mesh, privacy and public proof.
- How to set up offChat on Android
Concrete steps to install KingFy, open offChat and enable the radios Android needs.