Marine Barograph

Marine Barograph

Designed for Mariners

5 ratings
14 reviews
$14.99

Details

  • Released
  • Updated
  • December 18, 2020
  • February 21, 2026
Marine Barograph screenshot #1 for iPhone
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Marine Barograph screenshot #8 for iPhone
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About

This application logs atmospheric pressure with time, date, and GPS data, allowing for detailed graphing and analysis of trends. It can also share data wirelessly with other devices and convert older iPhones into stand-alone barographs.

Automatic atmospheric pressure logging
GPS position, COG, and SOG recording
Pressure vs. time graphing with zoom/pan
Pressure trend arrows and tendency computation
Data export (log, GPX)
Wireless data sharing via Wi-Fi UDP
Converts older iPhones to stand-alone barographs
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What's New in Marine Barograph

3.2.1

February 21, 2026

Fix units rounding in sensor offset. Various other improvements.

Charts

Top Paid

📊 178

Weather

The app has maintained its position at 178 recently.

Last updated on July 23, 2026.

User reviews

Sensor Offset Issue

The app is easy to use and does exactly what it claims to do but suffers from one important issue, the sensor offset value changes whenever you switch pressure units in the settings.

If accuracy is important (it is for me) and you sometimes switch between units such as from mb to inHg, you will corrupt the offset that you often go to a lot of trouble to obtain.

Please correct this as it appears to be a simple math issue caused by the rounding of numbers when switching between pressure units, the offset should to be a static number just as it is in your free Marine Barometer app which does not seem to have the problem.

If corrected, I'll change my rating to five stars as the app otherwise works well, but after paying for the barograph I did expect it to function correctly.
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Response from developer

This issue has been fixed in version 3.2.

Doesn’t update unless app is displayed

I read the reviews where the author say he fixed the update problem, well as of 03-18-25 the problem still exists and I have the most current IOS, also background refresh enabled, also location enabled. I would appreciate the author responding. Thanks.

Update 3-20-25:

I believe when I turn my iPhone off it doesn’t update..
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very useful

I love it now that it records in the background.

Funktion

Funktioniert nicht, no pressure available

No longer works for iPadOS 17.4 - Fixed

Worked great until I updated. No longer collects or displays barometric data.

App update fixed issue. Thanks for the prompt response.

Developer apps

FAQ

What is Marine Barograph?

Marine Barograph is a paid application designed for mariners that logs atmospheric pressure, GPS data, and voyage information. It offers advanced graphing and data export features, and can function as a stand-alone electronic barograph.

How much does Marine Barograph cost?

Marine Barograph is a paid app priced at $14.99. There are no in-app purchases or subscriptions required for its full functionality.

Does Marine Barograph have ads?

No, Marine Barograph does not contain advertisements. It is a paid application that offers an ad-free experience.

What devices is Marine Barograph compatible with?

Marine Barograph is compatible with iPhones and iPads. It requires iOS 4+ and can convert older iPhones (iPhone 6 or newer) into a barograph.

How often is Marine Barograph updated?

The latest version of Marine Barograph is 3.2.1, released on February 21, 2026. While specific update frequency isn't detailed, this indicates ongoing development.

Can Marine Barograph be used offline?

Yes, Marine Barograph can be used as a stand-alone barograph and voyage data logger, even without an internet connection, after initial installation.

What is the age rating for Marine Barograph?

Marine Barograph has an age rating of 4+, making it suitable for users of all ages.

How does Marine Barograph compare to the free Marine Barometer app?

Marine Barograph offers significant enhancements over the free Marine Barometer app, including automatic background logging of pressure with GPS data, advanced graphing capabilities, and wireless data sharing.