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Offline Diving: How DiveOne Works Without Internet
Diving happens in places where internet doesn't reach — boats, remote reefs, cave entries. DiveOne is built for exactly this reality. Here's how it works without any connectivity.
Before the dive: no login, no sync required
Open DiveOne on your supported Apple Watch. Select your dive mode. The watch records the dive without a server check during the session. DiveOne does not record GPS; you can pin the dive site on a map later.
During the dive: fully local operation
Depth is sampled from the hardware depth gauge. Temperature is logged continuously. Dive samples are written to persistent watch storage during the session. No signal is needed underwater.
After the dive: Bluetooth sync only
When you surface and your iPhone is nearby, the dive moves from the watch to the iPhone app: depth profile, temperature log, and timestamps. Account and cloud features are separate consented flows.
Export without internet
CSV export creates a local file on your iPhone. You can share it later via email, AirDrop, or any file-sharing method when you have connectivity. The export itself requires zero internet.
DiveOne 1.0.2 is available.
Download the current App Store release and check the status page for verified limits.