Comparison

Watch Speedometer Pro CarPlay vs GPS Altimeter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Watch Speedometer Pro CarPlay

Track your real-time speed during various activities like walking, driving, or flying. View historical data, speed scores, and location details. Supports multiple units and offers seamless syncing between devices.

Highlights
  • Live speed tracking
  • GPS and background modes
  • Heatmap visualization
  • Daily Speed Score
  • Unit conversion (km/h, mph, knots, m/s, ft/s)
  • Watch and iPhone syncing
  • One-time purchase for all features
Features
Read full description

Watch Speedometer Pro shows your current speed directly on Apple Watch and iPhone while you walk, cycle, drive, or fly. CarPlay keeps your speed visible while you drive. The Live Activity also shows it on the Lock Screen, in the Dynamic Island, and in the CarPlay Dashboard. Highlights: - live speed with precise GPS - battery-friendly background updates - heatmaps for day, week, month, or year - Daily Speed Score and yearly flowline - history with time, coordinates, and accuracy - automatic speed badges for achieved goals - units: km/h, mph, knots, m/s, and ft/s - a dedicated CarPlay display for current speed - speed tracks with profile, average, maximum, distance, moving time, and GPX/CSV export - widgets, Apple Watch complications, and a Live Activity for the Lock Screen, Dynamic Island, and CarPlay Dashboard Measurements stay synchronized across iPhone and Apple Watch. The shared location history also works together with Watch Compass, Watch Altimeter, and WatchBarometer. Premium is available as an auto-renewing yearly subscription or a one-time lifetime unlock. Privacy Policy: https://bernhardhering.de/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

GPS Altimeter

Features
Read full description

GPS Altimeter — a GPS elevation meter and barometer built for hiking, trail running, cycling, skiing and travel. See live altitude, pressure, coordinates, compass, speed and total ascent the moment you open the app. Clear numbers, simple controls, ready for the trail. 【Key features】 • Live elevation: GPS + barometer fusion, elevation chart, session max and ascent stats • Nearby landmarks: match cities and peaks worldwide so you can compare altitude on the go • Calibration: set a known elevation or QNH sea-level pressure before you climb for steadier readings • Track recording: save elevation profile, distance, duration and map path — with optional background tracking • Watermark camera: stamp altitude, place name, GPS and date on summit photos for easy check-ins • History: keep points and tracks on device; export CSV to review every outing • Units: switch meters / feet to match your preference 【Who it’s for】 Hikers, backpackers, trail runners, ski tourers, cyclists and travelers who want reliable altitude and memorable summit photos. 【Accuracy notes】 GPS elevation varies with satellites, terrain and weather — open sky is usually better. The barometer is excellent for relative ascent; weather changes can shift absolute values, so calibrate when you can. Indoors, tunnels and dense forest may drift. App data is for reference only — use proper maps and gear outdoors, and never stare at your phone on hazardous terrain. 【Privacy】 Core samples and tracks stay on your device by default. Location, camera, photos and tracking permissions are under your control in system Settings. Download GPS Altimeter and make every climb clearer — and easier to remember.

Screenshots

Watch Speedometer Pro CarPlay4 screens
GPS Altimeter3 screens

Verdict

The call

The clearest difference is in-app purchases: GPS Altimeter at none against Watch Speedometer Pro CarPlay's 2. GPS Altimeter also leads on update cadence (weekly vs monthly) and iOS requirement (15.0 vs 26.0). Watch Speedometer Pro CarPlay's advantage is ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Watch Speedometer Pro CarPlay sells 2 in-app purchases, starting at $9.99 per year. GPS Altimeter asks for nothing beyond the download.

UpkeepUpdate frequency

Watch Speedometer Pro CarPlay ships an update monthly, GPS Altimeter weekly. The most recent releases landed on November 4, 2026 and November 1, 2026 respectively.

Scorecard4 real differences · 6 level
Watch Speedometer Pro CarPlay versus GPS Altimeter: the parameters behind the verdict, then further details
ParameterWatch Speedometer Pro CarPlayGPS Altimeter
PriceFreeFree
Rating3.0 (1 ratings) — better—
Positive reviews10.0% of reviews—
Number of ratings1 — better—
Update frequencyMonthlyWeekly — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size12 MB6 MB
Age rating4+4+
DeveloperBernhard Hering珊珊 黄

In-app purchases

2 purchases

Watch Speedometer Pro CarPlay

Subscriptions1
  • Yearly Subscription$9.991 Year
One-time1
  • Lifetime Access$24.99
None

GPS Altimeter

No in-app purchases

Questions

Is Watch Speedometer Pro CarPlay free?
Watch Speedometer Pro CarPlay is free to download, with in-app purchases available.
Is GPS Altimeter free?
GPS Altimeter is free to download, with no in-app purchases.
Do Watch Speedometer Pro CarPlay or GPS Altimeter have ads?
GPS Altimeter shows ads; Watch Speedometer Pro CarPlay does not.
Which is updated more often, Watch Speedometer Pro CarPlay or GPS Altimeter?
Watch Speedometer Pro CarPlay ships an update monthly, and GPS Altimeter weekly. Most recently, Watch Speedometer Pro CarPlay was updated on November 4, 2026 and GPS Altimeter on November 1, 2026.

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