What's funny is I can imagine the sailor not understanding how the code works and properly setting up a "privacy zone" while at port to mask his location and verifying it was working while there

then of course while at sea, it's the same ship but different location

not like your home or workplace typically relocates itself

imagine being a coder at Strava trying to figure out how to deal with that, it's techically not possible

However it's a great marketing opportunity for Stryd footpod which can track distance without GPS

I wonder what a moving deck at even 10mph would do to a Stryd though

The GPS must have added 10mph? But it's all relative to the deck vs the sea, hmm

As a coder at strava fixing this would not be hard at all.

A global "Private mode" switch that sends zero data about anything at all while it is enabled. Your runs stay on device. All network calls are rejected. No data saved with it enabled will ever leave the device, full stop.

Every single app in the world should have this. It should be an OS setting that forces network calls to fail as well as part of the app review process that no data generated during a private session can ever leave the device.

They don't do that because they like your data for money.