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By downloading PressureNet you are a citizen scientist helping make weather forecasts more accurate!

PressureNet is a network of crowdsourced weather sensors. We automatically collect atmospheric pressure measurements using barometers in new Android devices. We're sharing this data with scientists and researchers to improve weather forecasting.

PressureNet has been featured on BBC World Service, Wired Science, and MIT Technology Review:

BBC World Service:
Wired Science:
MIT Technology Review:

Soon we'll provide you with a weather forecast based on your data! These forecasts should be significantly more accurate since the data is collected using smartphones - we can gather way more data about the atmosphere than ever before.

Until we make forecasts, we specialize in current weather conditions. Most apps show you the current weather at the airport, which isn't always relevant to you. PressureNet users alert each other of the weather, allowing us to build comprehensive maps of changing weather conditions on very local, relevant scales.

PressureNet supports all devices running Android 3.0+, though only tablets or phones with barometers will be able to contribute readings, see their pressure and use the widget.

Devices with barometers include:

Galaxy S3, S4, S5
Galaxy Nexus
Galaxy Note, 2, 3, 4
Nexus 4, 5, 6, 10
Xiaomi MI-2, MI-3
Droid Ultra
Moto X
HTC One (M8)
..and others!


- NEW: Watch your contribution statistics rise as you help science

- Widget to submit current weather conditions (for map and animations)

- Animations of current weather conditions based on your submitted data!

- Interactive Google Map now includes weather graphics indicating current weather conditions, as submitted by you!

- Pressure drop/rise alerts: notifies you when your pressure starts to fall (indicating clouds/rain is coming) or rise (indicating good weather coming)

- Report the current conditions outside where you are - your data will show up on the map, in animations, and will help us validate our forecasts.

- My Data feature that shows your recent measurements graph and listing

- Export data you've submitted to a CSV file

- Settings to modify Auto-Submit options, change unit preferences, sharing preferences

- Widget to view your current barometer reading, submit readings, view pressure tendency

- Search for locations to quickly view pressure trends all over the world

This project is fully open source to foster innovation. The core PressureNet code is contained in our SDK so that app developers can easily integrate PressureNet inside their own apps. Check it out and email us if you have questions! PressureNet code on GitHub:

We're always adding more features and would love your input. Visit our site at or email us at

Keywords: PressureNet, pressure net, crowdsourcing, weather, barometer, sensor, hygrometer, forecast, barometer network

Tags: pressurenet, pressure weather prediction, barometer.wsk.

Recently changed in this version

Weather notification improvements

Battery usage improvements

General bugfixes

Comments and ratings for PressureNet
  • (66 stars)

    by Sunjammr on 10/01/2015

    Excellent application for the collection, transmission, and dissemination of local weather conditions. This is the future of meteorology, and the science of weather forecasting will improve tenfold because of it and similar efforts. Maybe one day we will finally be able to conduct detailed analysis of the interior of an active cyclone by feeding 1,000 iPhones into a raging Cat. 4 tornado! It is a

  • (66 stars)

    by Casey Cassity on 06/01/2015

    Love this thing, and excited for the data these guys release. Used the pressure data in the Colorado mountains for an anatomy class.

  • (66 stars)

    by Dominic Powell on 06/01/2015

    If only everyone used it.

  • (66 stars)

    by Lynne Quarmby on 28/12/2014

    Crowd-sourced science that is fun, interesting and easy.

  • (66 stars)

    by John Ryerson on 28/12/2014

    This is the best Barometer app I have found. Unlike other barometer apps this one will let you display the sea level barometer reading not only on the app, but also on the widget. It also has great graphics with in the app along with many different and interesting stats and readings.

  • (66 stars)

    by Okan Korsal on 27/12/2014

    Please add the barometric value in the status bar at top.

  • (66 stars)

    by Jeff Nichols on 18/12/2014

    No pressure or any data

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