Altimeter+ vs SkyTimer
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
SkyTimer
This app automatically logs flights, tracks fuel burn, and manages tank levels in real-time from your wrist, phone, or iPad. It provides detailed flight logs and can export data, acting as a cockpit companion for pilots.
- Automatic flight logging
- Real-time fuel tracking
- Multi-tank and engine support
- Worldwide airport database
- Smart fuel balancing
- Detailed flight logs
- Cross-device sync
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SkyTimer automatically logs your flights and tracks fuel burn and tank changes in real time--from your wrist, phone, or iPad. A cockpit companion built to work alongside your EFB. Start a flight with a single tap. SkyTimer records block and flight times, tracks fuel quantity across up to 7 tanks and 4 engines, and logs your departure, arrival, and intermediate stop airports using a built-in worldwide airport database--no Internet required. *** FUEL MANAGEMENT, SIMPLIFIED *** SkyTimer calculates fuel burn, endurance, and remaining quantity on-the-fly using time-on-tanks and your configured burn rates. Update flow rates mid-flight for accuracy as conditions change. - Smart Balance calculates optimal tank timer durations to keep fuel balanced across tanks. - A robust reminder engine alerts you to configuration changes based on time-on-tank, fuel use, or fuel transferred. - Supports a wide range of fuel selectors and transfer switch types for single and multi-engine aircraft. *** AUTOMATIC FLIGHT TRACKING *** Smart Track uses GPS ground speed and your aircraft's Vso stall speed to automatically detect takeoffs and landings--no manual input needed. SkyTimer logs the times and airports for you. *** WORKS ON iPHONE, iPAD, AND APPLE WATCH *** Run SkyTimer on your iPad alongside your EFB in Split View, Windowed or Slide Over. On iPhone, Dynamic Island keeps your timers and fuel data visible even while you're in ForeFlight or Garmin Pilot--like a HUD for your flight data. SkyTimer for Apple Watch gives you full access to every feature right from your wrist, and works standalone if you leave your phone on the ground. Everything stays in sync across devices with iCloud. *** DETAILED FLIGHT LOGS *** Every trip is saved with flight and block times, airports, out/off/on/in times, fuel details, time-on-tanks, and Hobbs or Tach times. Export to CSV or directly to LogTen. Everything syncs across your devices with iCloud. *** FREE TO TRY, EASY TO UPGRADE *** Download SkyTimer for free and start tracking block and flight times at no charge. Unlock everything with SkyTimer Plus: - Fuel Quantity Tracking - Unlimited Flight Storage - Tank Timer Management - Auto-Track Takeoffs & Landings - Multiple Aircraft Profiles - iCloud Sync & Backup - In-flight Phone/Watch/iPad Sync --------------------- Price may vary by location. Subscriptions will be charged to your credit card through your App Store account. Your subscription will automatically renew unless cancelled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. After purchase, you can manage your subscriptions in App Store account settings. --------------------- Privacy Policy: https://skytimer.app/privacy/ Terms of Service: https://skytimer.app/terms/
Screenshots
Verdict
The clearest difference is price: SkyTimer at Free against Altimeter+'s $1.99. SkyTimer also leads on update cadence (fortnightly vs every 2 months). Altimeter+'s advantage is rating (4.5 vs 4.0) and in-app purchases (none vs 2). On 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
SkyTimer is free to download; Altimeter+ costs $1.99 up front. SkyTimer sells 2 in-app purchases, starting at $2.49 per month. Altimeter+ asks for nothing beyond the download.
Altimeter+ holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Altimeter+ has 700 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 75% of Altimeter+'s written reviews are positive against 54% of SkyTimer's.
Altimeter+ ships an update every 2 months, SkyTimer fortnightly. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | Altimeter+ | SkyTimer |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 4.5 (700 ratings) — better | 4.0 (22 ratings) |
| Positive reviews | 74.9% of reviews — better | 53.8% of reviews |
| Number of ratings | 700 — better | 22 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Best chart rank | #23 — better | — |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 45 MB | 149 MB |
| Age rating | 4+ | 4+ |
| Developer | Sichtwerk AG | Framework Learning, LLC |
Customer experience
Altimeter+
SkyTimer
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
SkyTimer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Altimeter+
No in-app purchases
SkyTimer
- Monthly Plus Subscription$2.491 Month
- Annual Plus Subscription$17.991 Year








