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Altimeter X

Altimeter X

GPS and barometric altitude

2 ratings
73 reviews
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$0.99

Details

  • Released
  • Updated
  • January 18, 2011
  • June 4, 2024

Features

Developer

LiveWorlds
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About

This app provides altitude readings using GPS, your device's barometer, or an elevation database. It offers different methods for accuracy and tracking changes, with options for calibration and offline use.

✓GPS altitude estimation
✓Barometric altitude tracking
✓Elevation database lookup
✓Weather data calibration
✓GPS altitude calibration
✓Offline elevation data
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What's New in Altimeter X

3.1

June 4, 2024

Bugfix for iOS 17.5

User reviews

Most RecentHighest RatedLowest Rated

Son widget Apple CarPlay !!!

Une superbe app, à qui il ne manque cruellement que son widget Apple CarPlay pour la voiture… pour la 5eme étoile.
Dans l’attente, j’ai acheté !
OliveLaRossOliveLaRoss

After updating to iOS 17.4 it no longer works!

After updating to iOS 17.4 it no longer works!
RiffSkillRiffSkill

Altimeter

Cool.it says open but it’s not even on my iPad!,?.
Capt BurnsCapt Burns

Le top

La version 3 est un bond en avant. En mode baromètre, je peux même voir varier l’altitude en levant le bras. Vivement Conseillée !
AmtaoAmtao

Captain

Only meters and NO FEET.

NUL !
JcrsiroccoJcrsirocco

Response from developer

The app uses the preferences set on your iPhone globally. So if your region uses meters, Altimeter X uses this unit. Since version 3.0, you can bypass this setting in the app (gear icon). Check it out.

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Developer apps

Altimeter X Lite
Altimeter X Lite

GPS altitude

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FAQ

What are the different ways this app measures altitude?

The app offers three primary methods for altitude measurement. It can use your device's GPS location services, which is generally reliable but may struggle with small changes or indoor use. It also utilizes the device's barometer, which excels at tracking relative changes but requires calibration. Finally, it can query an elevation database for surface elevation at your location, which works even with imprecise GPS but needs network access.

How does the barometric altitude feature work?

The barometric altitude feature relies on your device's built-in barometer. To ensure accuracy, it can be calibrated using either current weather data (sea-level pressure and temperature from a nearby station) or by taking a starting point from the GPS altitude and then using the barometer to track subsequent changes.

Can I use this app without an internet connection?

Yes, you can use the app without an internet connection for altitude readings. The GPS and barometric altitude methods do not require network access. The elevation database method does require network access to poll the database, but it can work with very imprecise location data.

What devices are compatible with the barometric altitude feature?

The barometric altitude feature is available on devices with a built-in barometer. Based on the description, this includes the iPhone 6 and newer models. Older devices or those without a barometer will rely on GPS or the elevation database for altitude readings.

What is the difference between GPS altitude and barometric altitude?

GPS altitude uses your device's location services to estimate your height above sea level. It's generally good for overall position but can be less precise for tracking small changes. Barometric altitude uses the device's barometer to measure air pressure, which correlates with altitude. This method is excellent for detecting small relative changes in elevation but requires calibration to provide an accurate absolute altitude.