Comparison

Marine Barometer vs Temcon

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Marine Barometer

This app provides accurate atmospheric pressure readings for mariners, allowing them to manually save readings with location and time data. It explains sea level pressure calculation and offers calibration checks with adjustable sensor offsets.

Highlights
  • Accurate atmospheric pressure readings
  • Manual saving of pressure, location, and time
  • Sensor offset adjustment
  • Sea level pressure explanation
  • Calibration check instructions
  • Multiple pressure unit options
Features
Read full description

Marine Barometer is a barometer sensor interface that is uniquely designed to meet the needs of mariners who rely on accurate atmospheric pressure for weather routing and the evaluation of weather maps. Pressure readings can be manually saved permanently along with the latitude, longitude, and time of the reading. If a sensor offset has been applied, that value is also stored with each recorded pressure. These recorded pressures can then at the navigator's convenience be transferred to the vessel's printed logbook. The GPS sensor is accessed for latitude and longitude only. The elevation of the sensor (your iOS device that includes a barometer) above sea level must be entered manually. Elevation values from the GPS are not accurate enough for the intended application. The concept of sea level pressure is explained along with how it is determined from the sensor reading. Instructions are provided on how to check the calibration of the sensor, and a sensor offset can be applied as needed. Links to sources of accurate sea level pressure are included. Sources of accurate elevation are included for use on land. The standard units for marine applications are millibars (mb) or hectoPascals (hPa). The main pressure display can also be set to inches of mercury, millimeters of mercury, or kiloPascals. However, because the primary reference pressures that would be used to check the sensor calibration are in mb, the sensor calibration must be set using millibar units. Reference links are provided for learning more about the tactical use of pressure for weather forecasting and weather map evaluation. Discounts are offered for barometer related reference books.

About

Temcon

This tool quickly converts between Celsius and Fahrenheit with an intuitive interface. It automatically saves your conversion history for easy access to past temperature data. Ideal for everyday use in cooking, science, and travel.

Highlights
  • Celsius to Fahrenheit conversion
  • Fahrenheit to Celsius conversion
  • Intuitive user interface
  • Automatic conversion history
  • Supports cooking, science, and travel needs
Features
Read full description

Temperature Converter Tool is a simple app that quickly converts Celsius and Fahrenheit. With an intuitive interface, you can easily switch between temperature units. Conversion history is automatically saved, allowing you to check past temperature data instantly. Designed for ease of use, anyone can start using it right away. Perfect for cooking, science experiments, travel, and more.

Screenshots

Marine Barometer4 screens
Temcon2 screens

Verdict

The call

The clearest difference is rating: Marine Barometer at 4.5 against Temcon's 2.5. Marine Barometer also leads on in-app purchases (none vs 2) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Temcon sells 2 in-app purchases, starting at $4.99 per month. Marine Barometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Marine Barometer holds the better App Store score, 4.5 against 2.5. That said, the two scores are not equally well evidenced: Marine Barometer has 33 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Marine Barometer ships an update every 15 months, Temcon every 13 months. The most recent releases landed on October 3, 2026 and October 8, 2026 respectively.

Scorecard5 real differences · 5 level
Marine Barometer versus Temcon: the parameters behind the verdict, then further details
ParameterMarine BarometerTemcon
PriceFreeFree
Rating4.5 (33 ratings) — better2.5 (2 ratings)
Positive reviews77.8% of reviews—
Number of ratings33 — better2
Update frequencyEvery 15 monthsEvery 13 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size38 MB28 MB
Age rating4+4+
DeveloperStarpath Corpkota tada

Customer experience

Marine Barometer

All ratings33 ratings
Positive84.8%
Neutral6.1%
Negative9.1%
Written reviews9 reviews
Positive77.8%
Neutral11.1%
Negative11.1%

Temcon

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Marine Barometer

No in-app purchases

2 purchases

Temcon

Subscriptions2
  • Ad-free for 1 month7 Days trial$4.991 Month
  • Ad-free for 1 year14 Days trial$29.991 Year

Questions

Is Marine Barometer free?
Marine Barometer is free to download, with no in-app purchases.
Is Temcon free?
Temcon is free to download, with in-app purchases available.
Which has better reviews, Marine Barometer or Temcon?
Marine Barometer is rated higher. Marine Barometer averages 4.5 out of 5 from 33 ratings, while Temcon averages 2.5 from 2 ratings.
Do Marine Barometer or Temcon have ads?
Temcon shows ads; Marine Barometer does not.
Which is updated more often, Marine Barometer or Temcon?
Marine Barometer ships an update every 15 months, and Temcon every 13 months. Most recently, Marine Barometer was updated on October 3, 2026 and Temcon on October 8, 2026.

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