Bar-o-Meter reads the pressure from the barometer sensor and it uses it to calculate your altitude. It also gives you weather forecast and it shows the pressure in different measure units.
On old devices not equipped with a barometric sensor, the app uses accurate internet services to also display pressure and altitude.


▪ Find your altitude from the pressure measured from your device, thank's to the Barometric Formula, and from your location
▪ Widget, to always keep an eye on pressure
▪ Pressure and altitude charts
▪ Relative Altitude, to get how up and down did you hiked, based on the pressure measure of your device
▪ Multiple measure units
▪ Amazing animations and Flat Design graphic!

… and much more!

Updates and more features are coming.
Ver. 1.2.0 - Lot of improvements: In-App Purchase to remove ads has been added, new Wiki button and you can now take a picture with barometric data in overlay
Ver. 1.1.0 - Now the charts of pressure and altitude variation in time are available. Also, the widget has been added!
Ver. 1.0.1 - The altitude calculation has been improved and we added Millimeter of mercury (mmHg) as measure unit

For issues, questions or requests, please write to our team at or by the support page

What's New

Version 1.3.6

A bug affecting the Yahoo weather provider has been fixed

Ratings and Reviews

3.8 out of 5
6 Ratings
6 Ratings

Needs Apple Watch support

Needs to run in background.

Needs to show the last 24 hours of pressure data.

Add sun and rain icons to barometer to quickly indicate predicted weather.

Needs ability to zoom out on the graph to see more hours at once without side scrolling.

It would be cool if you could rotate the iPhone sideways so the graphs would be bigger and show more data at once.

Needs Apple Watch support


Excellent and reliable

Use this app often. Works very well.

Herman Bear

Ads! And no hPa

I want to like this app. But I hate the Ads I see no option to pay for no Ads I would much rather pay and not have some company insisting I look at their Ad just to check AP throughout my day. I don't use apps with Ads. Also why no hPa which is the standard for most professionals and pilots? I will check back for updates as the information it provides is accurate. I will not deal with Ads or with pressure measurements other than hPa I don't need to covert stuff in my head I want it at a glance. I think the format could look more professional also, enjoy the ability to trend past conditions. Hope it improves I want to give it more stars as it seems a very accurate tool.


NETTuno s.r.l.
9.5 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, German, Italian, Spanish
Age Rating
Rated 4+
NETTuno S.r.l. © 2014
In-App Purchases
  1. Remove Ads $0.99


  • Family Sharing

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

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