# Altitude App > Altitude measurement tool using GPS or ASTER DEM, with unit and target altitude options. (iPhone/iPad app by Piet Jonas.) - Source: https://appshunter.io/ios/app/altitude-app/id331726962 (this page in markdown: same URL + `.md`) - Developer: [Piet Jonas](https://appshunter.io/developer/288060167) - Category: Navigation, Travel - Price: $0.99 - Rating: 3.80/5 from 4 App Store ratings · 18 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 23 MB - Languages: American English - Released: 2009-10-14 - Data updated: 2026-09-08 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/altitude-app/id331726962/reviews.md ## What is Altitude App? This altimeter delivers the altitude of your current position either from the device (GPS) or from the ASTER digital elevation model (with a horizontal accuracy of 30m). Depending on your current position and your device one of the two methods is more correct. Using GPS on the device is known for a large error in the altitude for difficult receiver conditions it's not available for network based positioning at all. Therefore this altimeter works on iPods and iPhones without a GPS sensor. More features: - switch between metric and feet units - set an optional target altitude - switch between Device, ASTER and combined altitude - support for the iPad multitasking (split view..) ## Key features - GPS and ASTER DEM altitude sources - Metric and feet unit switching - Optional target altitude setting - Works on devices without GPS - iPad multitasking support ## Chart rankings - #192 in Top Paid · Navigation (US App Store) ## Recent user reviews (10 of 18) All indexed reviews: https://appshunter.io/ios/app/altitude-app/id331726962/reviews.md ### 5/5 — One of the first Downlaoders here *2025-09-11* One of the first Downlaoders here (YEARS AGO) and have probably recommended downloading this app to a good 100-150 people. No one seems to know about ASTER based elevation mapping, oddly enough. The military/DOD has its own “ASTER” database which is accurate to a few millimeters!!! (If they would allow us access). The database this uses is called GeoNames. It is in the apps small print and is very accurate according to my land survey. Accurate to a 1-2 feet in elevation! But this is a FANTASTIC APP for precise gps navigation. In all the years this app has been available, they have NEVER “discontinued” or abandoned the app to begin a more “robust” version in an attempt to “squeeze” people for more $$. They regularly update it and it is the best and only “exact elevation app” I have. About a year ago, I did a search in the App Store, and there was only ONE OTHER app that featured ASTER, oddly! I guess people are not as finicky like me about aviation navigation… Consider purchasing their IAP’s as well. Great developers! ### 2/5 — It should be called elevation *2017-03-25* Altitude refers to the height above mean sea level regardless of elevation of the land. The symbol of the altimeter falsely implies it uses barometric pressure as well as gps for aircraft altitude. But, it only tells you the elevation of the ground. Am giving it 2 stars because it does do a good job at elevation but only two stars because it does not give altitude. ### 1/5 — 0/5 Stars *2015-04-25* Does not work! Big bummer! ### 3/5 — Läuft gut! *2013-03-06* Wer's nicht glaubt: In den Lift setzen und statt der Landschaft App. verfolgen! ### 1/5 — Rubbish *2011-09-05* Far to inaccurate for this app to be worthwhile. When static device can change the reading by 100 + metres ### 5/5 — Very good app. *2011-05-16* Does what it is suppose to do. ### 1/5 — Ruim *2011-05-08* Uma porcaria. Nao vale a pena, nem o preço. ### 5/5 — It does exactly *2011-01-29* It does exactly what it is designed to do and is pleasing to the eye. Thx ### 1/5 — einfach... *2011-01-04* ...nur Schrott, ohne Funktion ### 5/5 — Great App! *2010-11-26* Works well for a 99 cent app! ## Frequently asked questions about Altitude App ### What is the Altitude App? The Altitude App is a navigation tool that provides your current altitude using either your device's GPS or the ASTER digital elevation model. It offers flexibility in units and allows you to set a target altitude. ### Does Altitude App work on iPhones without GPS? Yes, the Altitude App works on iPods and iPhones without a GPS sensor by utilizing the ASTER digital elevation model for altitude readings. ### What units can Altitude App display? The Altitude App allows you to switch between metric and feet units for displaying altitude measurements, catering to different user preferences. ### Can I set a specific altitude goal with Altitude App? Yes, the Altitude App allows you to set an optional target altitude, which can be useful for planning or tracking progress towards a specific elevation. ### What is the accuracy of Altitude App? The ASTER digital elevation model used by the app has a horizontal accuracy of 30m. GPS accuracy for altitude can vary significantly depending on receiver conditions. ### Is Altitude App compatible with iPads? Yes, Altitude App supports iPad multitasking features like split view, enhancing its usability on larger screen devices. ### How often is Altitude App updated? The Altitude App was last updated on December 5, 2024, indicating recent development and maintenance by the developer. ### What is the price of Altitude App? Altitude App is a paid application, available for purchase at $0.99. It does not have in-app purchases or advertisements. ## Version history (last 5 releases) ### 1.4.3 — 2024-12-05 - bugs fixed ### 1.4.2 — 2019-02-02 - fixed missing ASTER data - support for IPhone X ### 1.4.1 — 2016-06-15 - bug fixed ### 1.4.0 — 2015-11-17 - support for the iPad multitasking (split view..) ### 1.3.0 — 2014-12-19 - support for the iPhone 6 and 6+ - enhanced for iOS 8 ## More apps by Piet Jonas - [Game Counter](https://appshunter.io/ios/app/game-counter/id288060164) - [Workout](https://appshunter.io/ios/app/workout/id288240647) - [Compass](https://appshunter.io/ios/app/compass/id288420566) - [Contact Find](https://appshunter.io/ios/app/contact-find/id290153951) - [Thesaurus App](https://appshunter.io/ios/app/thesaurus-app/id291362860) - [Baseball Games](https://appshunter.io/ios/app/baseball-games/id291533429) All apps by Piet Jonas: https://appshunter.io/developer/288060167 ## Related topics [altitude app pressure](https://appshunter.io/ios/topics/altitude-app-pressure) · [altitude app offline](https://appshunter.io/ios/topics/altitude-app-offline) · [gps altitude measurement](https://appshunter.io/ios/topics/gps-altitude-measurement) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*