Gauges is an all-in-one utility with GPS, Altimeter, Speedometer, Barometer, Accelerometer, Magnetometer, Sound level and Light meter:

1. Speed information (kph, mph and knots)
2. GPS Altitude (meters and feet), and also Pressure Altitude with 1013.25 mbar setting.
3. Barometric information (hPa, Hg, PSI, kPa, and mmHg)
4. Accelerometer (G forces)
5. Location and heading (Latitude, Longitude, Magnetic and True heading)
6. Magnetic force (in microtesla and Gauss)
7. Sound level meter (dB)
8. Luminance
9. All the previous combined!

A real-time graph shows the updated values for each instrument, and a map is available when location and heading are selected.

Sliding the instrument to the left exposes the option to mark the value - a quick annotation of the current value for future comparison.

Minimum and Maximum values for each instrument are recorded, and can also be reset with a tap.

Unit definitions available through Wiki links.

Share the sensor information, or use it on other apps, such as a note or email.

Things you can do with this app:

* Find hidden cameras, metal structures or even electric wires behind walls, with the Magnetometer
* Check if the weather is improving, with the Barometer
* Check how fast your train, plane or boat is going with the GPS Speedometer
* Find your current Altitude with the GPS altimeter, or an altitude calibrated to 1023.25, or your own QNH setting on the Barometer
* Discover how many G's you endure on a roller coaster ride
* Record all this and more and explore the data on a spreadsheet (In App Purchase required!)

Also available:

* Recording of all the data that you can later share with other Apps in CSV format. (You need to do an in-app Purchase for this feature).
* View all sensor information at once (In-App purchase required).
* Option to produce spoken values at regular intervals.
* Data update frequency from 1 ms to 1 second. (In-App purchase required).
* Ability to enable and disable each instrument (In-App purchase required).

Continued use of GPS running in the background can dramatically decrease battery life.

What’s New

Version 4.1

** Small bug fixes **

Ratings and Reviews

4.6 out of 5
1.5K Ratings

1.5K Ratings

Andrew1:1 ,

Really great app it is so interesting and fun as well as Scientific

Thank you for your gauges app and makings of a way to teach children as well as Adults, knowledge is fundamental to Learning Wisdom to be a well rounded individual as a student of Sciences as well as other Educational apps, and Other teachings of study... Could you please see if other sensory equipment could be utilized such as a SIRI that has a Evolving Learning Knowledge base like Encyclopedia derived from the Library of Congress... It would be great to see DATA from NASA INCLUDING ASTROLOGICAL ARRYS, NOAA, ENVIRONMENTAL, AND HEALTH... I HOPE THAT IT IS HELPFUL FOR FUTURE REFERENCE AND THANK YOU FOR YOUR TIME...

WitherSlayer650 ,

Very cool app, but some suggestions

This app is amazing I have never seen an app in the App Store that either wasn’t a cheap knockoff that doesn’t work at all, or just crashed once you opened it. This app is really accurate (not super accurate, but it still works good). I noticed it works better when you are holding the phone for some reason. I also like that it has a lot many tools and gauges, along with measuring units too.
Definitely a 4.4out of 5.

But I have some suggestions too. Could you add more gauges like a thermometer, or humidity sensor, ot light types and radiation index or even electricity sensors too (if possible, I mean there are limits to devices of course.) another thing would be make it bit more accurate (if possible).

Abel151 ,

Apple Watch complication!

Please and thank you! It would be amazing to have the functionality of the app always just a quick glance away. With the release of watchOS 6, and the larger screens of the Series 4 & 5 full functionality is within reach. One can hope right?

Developer Response ,

Hello! Thanks for your feedback! Indeed, the Apple Watch is the next step for Gauges, and you'll be pleased to find out that on our next update, a stand alone Apple Watch version is included. As for the complication, it's complicated! But we'll be moving in that direction! Again, thanks for your support!


Emidio Cunha
6.7 MB

Requires iOS 11.0 and watchOS 5.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
This app may use your location even when it isn't open, which can decrease battery life.
In-App Purchases
  1. Record Unlock $4.99


  • Family Sharing

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

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