About Pro Altimeter - Barometric+GPS (Craig Hunter)
Pro Altimeter has a dead simple interface. Barometric altitude and GPS altitude are displayed in large easy to read numbers, showing units of both feet and meters, and giving realtime accuracy estimates from the hardware. At bottom are calibration and display mode buttons. The display offers a highly-readable daytime mode with black digits on an LCD-green background, and a reversed night mode that is easy on the eyes in dark conditions. That's it!
1. Use GPS altitude. This method correlates the measured local barometric pressure with the altitude measured by GPS. This method can be used when your device has a clear line of sight to the sky and a reliable GPS fix with good accuracy.
2. Manually enter altitude. This method correlates the measured local barometric pressure with known altitude from landmarks, elevation benchmarks, trail markers, topo maps, land surveys, etc. Altitude can be entered in feet or meters.
3. Manually enter pressure. If you have a weather station, weather report, or METAR report with equivalent sea level pressure for a nearby location, this can be used to correlate local barometric pressure to altitude. Pressure can be entered with units of inches Hg, kPa, or mb.
4. Check local airports. With the tap of a button, Pro Altimeter will locate the five closest airports within 100 miles (160km) of your present location anywhere in the world, and pull in METAR data. From that list of five, pick the airport of your choice and Pro Altimeter will import pressure data for calibration.
Once calibrated, Pro Altimeter keeps track of the time since its last calibration. Because weather and local barometric pressure change over time, the app will warn you when 6 hours have elapsed since the last calibration by flashing the "CALIBRATE" button. You should calibrate as frequently as practical -- for example, on a hike, calibrate whenever you pass a trail marker or elevation benchmark. But at a minimum, calibrate at least every 6 hours or whenever weather changes in your area.
Pro Altimeter is intended for iOS devices with a built-in barometric pressure sensor (iPhone 6 and later, iPad Air 2 and later, iPad mini 4 and later, and iPad Pro). On older devices without a barometric pressure sensor, only GPS altitude and accuracy will be displayed.
If you have an Apple Watch, check out the new Pro Altimeter for Watch and get all this same functionality on your wrist!
What's New in Pro Altimeter - Barometric+GPS (v1.1.3)
Pro Altimeter - Barometric+GPS Contact Information
To reach Pro Altimeter - Barometric+GPS customer service and technical support, use the official channels below. For the fastest reply, choose the developer's official website.
Pro Altimeter - Barometric+GPS Subscription, App Deletion & iOS Support
How do I cancel the Pro Altimeter - Barometric+GPS subscription?
Open Settings on your iPhone or iPad, tap your Apple ID (your name) at the top, go to Subscriptions, select Pro Altimeter - Barometric+GPS from the list and tap Cancel Subscription. Cancellation takes effect at the end of the current billing period; you can keep using the app until then. See Apple's official subscription management page for details.
How do I delete the Pro Altimeter - Barometric+GPS app?
Touch and hold the Pro Altimeter - Barometric+GPS icon on the Home Screen, choose Remove App and then Delete App. Important: if you have an active subscription, deleting the app does not cancel it automatically - you must first cancel your subscription using the steps above.
Pro Altimeter - Barometric+GPS purchases, refunds and billing issues
Report billing or refund requests for Pro Altimeter - Barometric+GPS through Apple's Report a Problem (reportaproblem.apple.com). For the app's own technical support and contact, use the developer's official website or the Pro Altimeter - Barometric+GPS App Store page.
Distribution of Pro Altimeter - Barometric+GPS Reviews
Of the last 21 reviews shown, 62% are positive (4–5★) and 38% negative (1–3★). App Store overall rating: 3.9 / 5
Pro Altimeter - Barometric+GPS Positive Reviews and Ratings
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This version of the App has effectively resolved an issue related to display on IPhone6. The app is easy to calibrate and read due to the larger text. Well worth the 0.99 cents.
While trying to determine elevations for setting multiple very sensitive digital barometers at different levels indoors, I used a combination of USGS topo maps, a couple of pressure equations, and moving up and down hill with a barometer to record pressure changes to predict estimated altitudes where the stationary barometers are. Pretty much had to work it out inside-out and in reverse. Then I happened to see this altitude app available in the Theodolite app (never came across it when searching the App Store, though), and it’s exactly what I was needing. I took it to an open spot outside where an online high-res USGS topo map showed 1,261 feet elevation, entered that as the calibration, then quickly took my phone to the barometer locations. Based on the app elevation readings, the difference between the predicted pressure and the values calculated using this app’s numbers showed that the prediction was only 0.08 millibars off, or within about 5 feet elevation. It was kinda cool to see how closely the reverse-engineering turned out to be, but I’d much rather have skipped all that nonsense and found this app a lot sooner.
Right now I fail to see how this is anything more than all the other GPS location barometer apps in the App Store. You can enter your local pressure, but it still only gives you GPS altitude on both my iPhone and Apple watch. Another barometer app I use reflects the actual local station pressure, so I am quite sure that the sensor in my iPhone is working properly. Review Update: I downloaded Pro Altimeter to both my iPhone 14 Pro and to my Apple Series 8 watch at about the same time that Apple updated their software which messed things up. I am changing my star rating due to the quick response from the developer, which can be read below.
This is a great app. I use it for taking small measurements in height used in drainage systems where accurate GPS is spotty. Thank you so much for readdressing the barometer sensor.
Please bring this to Apple Watch. I work in Military aviation and this would help so much on Apple Watch. And add landscape view option.
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Would love to be able to use in landscape mode but otherwise it's great!
C'mon ... this app should have been an upgrade to the “Pro Compass”. Why Hunter separated the two defies logic.
Great app!
Fantastic app, please add pressure and altitude history graph. Thank you.
One request...Can you add a Vertical Speed Indicator (VSI) based on the barometer?
Reliable, simple, clean.
Bought this with the bundle after four or so years of Theodolite. That app is perfect.-edited- App works well! After making “Health and Fitness” changes to iOS settings, app functions perfectly!! Thanks for the response and feedback!
Great app! Perfect - only what is needed. Can’t wait for the Apple Watch version!
Pro Altimeter - Barometric+GPS Negative Reviews and Ratings
Love the multiple methods of calibration and the accuracy it provides… but now this app needs some features to make it useful. Altimeter: Climb and descent rate measured over time or between pre-determined altitudes for us climbers and skiers. The ability to display change in altitude over time in both data table (exportable to spreadsheet) and graph/graphic form. Altitude alarms to signal when a particular altitude has been reached. Barometer: pressure change over time is a good indicator of weather trends. How about recording pressure at user selectable time intervals in the background and then displaying collected data in table form (exportable to spreadsheet) and graph/graphics forms? Maybe display airport data on a map so user can see surrounding pressure readings and get a picture of pressure trends in area? App is a good start from an accuracy, calibration point of view. Now add some useful functionality.
I downloaded this app years ago and it worked great for about 3-4 years. Amazingly accurate. Now it opens for just a few seconds then crashes. Unusable. Disappointing for an app I paid $20 for.
Unfortunately, the app crashes as soon as you open it.
Clicked on the icon and it went dark and said "waiting".....its been 12 hours and I'm still waiting. I really enjoyed it when it worked
Paid, loaded,did not work, just wanted a simple manual input conversion tool
When calibrated with local altimeter setting, altitude off by 100 feet
Two buttons: Calibrate & Display, Display changes screen to reverse video, with no apparent benefit. Calibrate button does nothing also with no apparent benefit. Want my $.99 back!!!
Crashes in under a second.
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