Barometer Plus app measures air pressure and altitude using the built-in barometric pressure sensor on your device.
It only works on devices that contain a barometer, such as iPhone 6/6s/7/8/X (including Plus models), iPad Mini 4/Air 2/Pro or later.
Barometer Plus can be used for virtually all your outdoor and indoor activities, such as climbing, trekking, hiking and even stair climbing.
Because air pressure changes normally indicate a weather change, you can also use this app to monitor and predict short term weather variations.

* Contains accurate barometer and altimeter
* Unit support for pressure (mb, inHg, kPa, atm, Torr, psi, hPa, mmHg), altitude (meter, feet)
* Calibrate the barometer using GPS altitude, GPS location and nearest airport information/METAR, or manually entered QNH
* Offset sensor output value
* Measure height (building/mountain/hiked/climbed) using relative altitude feature (check Settings)
* Personalization graphic in classic analog style
* Today widget (Pro feature)
* Pressure tracking and history graph (Require \"Background App Refresh\" or \"GPS running in the background\").
* Notification about pressure change. Useful when you are in weather sensitive zone like desert, mountain, sea.
* Export history to CSV format and customize notification change value (Pro feature)

You can also customize your barometer/altimeter with:
- 7 different housing colors
- Black, white or blue disk background
- 4 different app backgrounds
- 3 different types of needle
- Dark or light Today widget theme

*** Network connections require the app to be running in the background, and you must open app at least once a week.
*** Weather icons: This only shows the air pressure trend; this is not a weather forecast function.
*** Note: You should take the phone/tablet far away from computers, cables and other magnetic sources in order to get accurate results.
*** If you like this app then please support us - you can remove ads and unlock pro features from the menu.
*** “Continued use of GPS running in the background can dramatically decrease battery life.”
We welcome your ideas and suggestions - please email us at:
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What’s New

Version 2.1.1

Bug fixes and performance improvement.
There are many more features in Settings, please discover.
Thank you for choosing Barometer Plus! We welcome your ideas and suggestions - please write a review or email us at:

Ratings and Reviews

4.1 out of 5
321 Ratings

321 Ratings

Sommerfel ,


A lot of people claim that their joints ache or levels of chronic pain and fatigue are affected by barometric pressure. So, I got this ap to start keeping track. It works fine, I guess, I know nothing about barometric pressure. I sure would like to see this or a new ap include a way of tracking pain levels w barometric changes. I’m currently using a note pad on my phon to keep records of barometer readings and pain, which works fine, but thinking it might be really great to have an ap that tells me when I might expect to feel like crap, or to at least remind me that the reason I am waking up, feeling like crap is due to atmospheric changes and not because I’m falling apart.

rokuEd ,

Good intentions

This app seems to work well enough for what it does. As previously stated, it seems to be a bit off, but your iPhone isn’t a barometer, so as long as you have the offset corrections set it’s good enough.

My problem lies in the background app refresh. What I really want to see from this app is the graph of past barometer data so I can track migraines. Unfortunately, for this to work, I have a flashing blue bar across the top of my phone screen constantly that says “Barometer Plus is Actively Using Your Location”, even though it should only be updating every hour. The flashing blue bar is enough to make me close the app, rendering the pressure history useless.

The developer response solution is not an option as “never” and “while using the app” are the only options regarding location

Developer Response ,

Update: You must enable "Exact update interval" in the app Settings to get the Always option.
You can turn off the blue bar by open iPhone Settings app, Privacy, choose Barometer Plus app, choose location and select Always. For the 1 hour problem, you can choose minimum is 15 minute under Pressure Tracking Interval in the app Settings. You can email us for more support.

mbwally ,

Get to know it

As a professional avalanche forecaster snd fly fishing guide, I’m constantly watching the weather. I got this app as a quick reference to monitor pressure trends. After learning about all it can do, I’ve discovered it’s a powerful app. Exporting pressure data into spreadsheets and graphing is super helpful. It’s easy to read and looks great on the iPad. I’d recommend studying up barometric pressure then revisit this app and take some time to get to know it. As far as accuracy, I’ve compared it with actual NWS surface pressure charts along with other instruments. When set properly, it’s as accurate as any other instruments I check and use, including my pocket altimeter. Great app!


Ngo Na
44.2 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Dutch, French, German, Italian, Japanese, Korean, Persian, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. No Ads and Pro features $1.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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