Altimeter+ vs AltitudeAlert
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Altimeter+
This app measures your current altitude using GPS, ASTER data, or your device's barometer. It offers an integrated map with peak data, a compass, and distance grids, functioning even without active GPS.
- GPS, ASTER, and barometer altitude measurement
- Average altitude calculation
- Integral map with peak indicator
- Compass and distance grid
- Apple Watch support
- Works without active GPS
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The Altimeter+ altimeter calculates the altitude of your current location via a GPS, Aster or barometer measurement (for iPhone 6 and later). In addition to this, the app also provides an average calculation of GPS and ASTER altitude data as well as an integral map which shows peaks, a compass and a distance grid. Features: - Apple Watch support! - Barometer altitude measurement (iPhone 6 and later) - Altimeter with GPS or ASTER measurement - GPS/ASTER average calculation - Unit of measurement - imperial or metric - Integral map with Apple maps and peak indicator, compass and distance grid - Also functions without active GPS Peak data from peakhunter.com
AltitudeAlert
This app provides advanced altitude management for pilots, featuring VNAV for precise altitude control and ALT HOLD mode for VFR pilots. It offers customizable spoken alerts for altitude assignments and approach minimums, ensuring pilots never miss critical altitude cues.
- VNAV (Vertical Navigation)
- ALT HOLD Mode for VFR pilots
- Customizable spoken altitude alerts
- Instrument Approach Minimums Alerting
- Automatic ground reference alerting
- Supplemental oxygen use alerts
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Advanced Altitude Management for Pilots. Integrated with a pilot designed flexible alerting system and VNAV (Vertical Navigation), AltitudeAlert is the first App to bring advanced altitude management to ALL pilots. VNAV gives you unparalleled control of altitude. Use VNAV to define precisely HOW, WHEN and WHERE you want to be at a certain altitude. With customizable settings, you define how VNAV will work. ALT HOLD Mode is specifically designed for VFR pilots requiring virtually no setup. Just tap the button and AltitudeAlert will monitor your current altitude. This mode is great for student pilots, formation flying, and pilots of vintage, ultralight, and light sport aircraft with minimal instrumentation. Never miss an altitude assignment again. Set the altitude and AltitudeAlert alerts you prior to reaching it and again when you acquire it. Spoken alert announcements are customizable. Choose from a single chime or chime plus altitude remaining. Need to shoot an approach? No problem! Set the minimums and AltitudeAlert will alert you 100' above minimums and again at minimums.** **Barometric sensor required (see SYSTEM REQUIREMENTS below). FEATURES: • iPad version runs along side or in the background while using your favorite EFB App, i.e. Foreflight, Garmin Pilot, FlyQEFB, etc. • VNAV (Vertical Navigation). • Alerting for supplemental oxygen use for both pilot and passengers. • Instrument Approach Minimums Alerting.** **Barometric sensor required (see SYSTEM REQUIREMENTS below). • Automatic ground reference alerting at 1000' and 500' above touchdown. For devices WITHOUT a barometric sensor, AltitudeAlert uses GPS Altitude based alerting. A SUBSCRIPTION IS REQUIRED TO USE ALTITUDEALERT: • Two subscription options are available. Monthly and Yearly. • All subscriptions include a 1-month FREE TRIAL. • Price of the subscription is $1.49/Month USD or $12.99/Year USD. Payment will be charged to your Apple ID account at the end of the free trial period. Your subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. No cancellation of the current subscription is allowed during and active subscription period. *** SYSTEM REQUIREMENTS *** All iPads need to have Wifi + Cellular (Wifi ONLY requires an EXTERNAL GPS** connected to the iPad such as Bad Elf Pro). ** Appareo Stratus 1/2/3 and uAvionix Sentry GPS NOT Supported at this time. Minimum hardware requirements to use the barometric features of the app (devices that DO have the barometric sensor): • iPhone 11, 11 Pro, 11 Pro Max • iPhone Xs Max, Xr • iPhone Xs, X • iPhone 6+, 7+, 8+ • iPhone 6, 7, 8 • iPad Mini 4 or newer • iPad Air 2 or newer • iPad Pro (any size) or newer Minimum hardware requirements for GPS based alerting (devices that do NOT have the barometric sensor): • iPhone SE • iPad 4 or older • iPad Air • iPad Mini 3 or older *** PLEASE NOTE *** Continued use of internal GPS running in the background (if applicable) can dramatically decrease battery life. Barometric pressure sensing features of this app will NOT work correctly in PRESSURIZED aircraft. In this case, use GPS altitude reference and associated features of the App. For more information on Terms & Conditions, please visit http://www.altitudealertapp.com/eula.html
Screenshots
Verdict
The clearest difference is price: AltitudeAlert at Free against Altimeter+'s $1.99. Altimeter+'s advantage is in-app purchases (none vs 2) and review sentiment (80% vs 50%). On update cadence, ads and device support 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
AltitudeAlert is free to download; Altimeter+ costs $1.99 up front. AltitudeAlert sells 2 in-app purchases, starting at $1.99 per month. Altimeter+ asks for nothing beyond the download.
Altimeter+ holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Altimeter+ has 709 ratings behind it against 27, so its average is the more settled of the two. Written reviews point the same way: 80% of Altimeter+'s written reviews are positive against 50% of AltitudeAlert's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Altimeter+ | AltitudeAlert |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.5 (709 ratings) — better | 4.3 (27 ratings) |
| Positive reviews | 79.6% of reviews — better | 50.0% of reviews |
| Number of ratings | 709 — better | 27 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Subscription |
| Best chart rank | #77 — better | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 11.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 45 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Sichtwerk AG | Raymond Chase |
Customer experience
Altimeter+
AltitudeAlert
Bugs and requests
Altimeter+
Reported bugs
3 issues- App crashes when trying to calibrate or access settings
- Altimeter readings are inaccurate or inconsistent
- App not working on certain devices or iOS versions
Requested features
4 requests- Add option to display altitude in feet or meters
- Implement automatic calibration using GPS
- Add complication support for Apple Watch
- Provide above ground level (AGL) altitude reading
AltitudeAlert
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Altimeter+
No in-app purchases
AltitudeAlert
- Monthly Subscription1 Month trial$1.991 Month
- Annual Subscription1 Month trial$14.991 Year







