[cryptoz]

The Galaxy S4 had a hygrometer, 'ambient' thermometer, and barometer. Most phones have dropped the thermometer (too sensitive to temp fluctuations to make much sense, surface temps not that useful for weather prediction in urban areas, etc) and the hygrometer (waterproofing), but most have kept the barometer.

It's my long passion to 'activate' all the billions of barometers and use them in weather forecasting. There shouldn't really be much need to manufacture so many weather stations when so much can be done using already deployed hardware (smartphones).

I know IBM is doing assimilation of barometer data into their new models from Weather Underground app installs, and I suspect Apple may finally glance at using their iPhone barometers for weather forecasting now that they bought Dark Sky, but I also don't trust either group to make the results and research public and for the greater societal good - I expect Apple and IBM will mostly use their barometer tech for their own internal, private weather forecast systems.

[raphinou]

There's https://pressurenet.io/ using smartphones barometers

[cryptoz]

That's my dead project and someone's copyright violated me by stealing my content and rehosting it with bad edits!

Thanks for pointing that out, that is definitely not the site we put up for that project (~2011-2015)