Comparison

Altimeter vs Skymaster SM

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

Head to head
About

Altimeter

Determine your current altitude and save important locations to navigate back to them later. This app supports multiple coordinate systems and can be used on iPhone, iPad, and Apple Watch. It prioritizes battery saving by only using GPS when the app is active.

Highlights
  • Current altitude measurement
  • Save and navigate to locations
  • Multiple coordinate systems
  • Share location and altitude
  • Apple Watch support
  • Battery-saving GPS usage
Features
Read full description

Have you climbed to the top of a mountain and want to know your current elevation? Or are you out and about and wondering how far you still have to go? Altimeter shows you your elevation. It’s also conveniently available on your Apple Watch! What if you want to mark points along your route so you can find them again later? No problem! With Altimeter, you can name and tag locations with an icon and navigate back to them later. This works on your iPhone, iPad, and Apple Watch. Altimeter is free, ad-free, and doesn’t track you in any way. Some features are available only to supporters, but anyone can try them for free for a few days. The basic features are freely available and will remain so. If you have questions or comments, you can submit a support request within the app. Features - Elevation in meters or feet with high accuracy - Locations in multiple coordinate systems (International, Swiss, UTM, MGRS) - Save locations as waypoints for later and organize them into folders. - With Augmented Navigation, you can see exactly where your destination is right in the camera view. - The Radar view shows you all waypoints in your vicinity, even in 3D. - Share your waypoints even without an internet connection. - The combined view shows you elevation and location at a glance. - Light/Dark Mode, color or monochrome - iPhone, iPad, and Apple Watch Altimeter uses your device’s GPS chip to determine your elevation and location. To maximize battery life, the chip is only activated when the app is open on your iPhone, iPad, or Apple Watch. This means there is no background activity, and your location is not stored. Note Accuracy depends on GPS satellite reception. Reception is limited indoors. Continuous use of GPS can significantly reduce battery life. Privacy Policy: https://altimeter.22of8.ch/en/privacy-policy.html Terms of Use: https://altimeter.22of8.ch/en/terms-of-use.html

About

Skymaster SM

Features
Read full description

Skymaster is the best object tracking and complete user-friendly application which can help you to track your vehicle. Skymaster can help: You can easily find your current location and search address where you want to go. This tracking app helps you to explore new ways to travel with the right Internet navigation using GPS systems. Easily you can get estimated time to reach ATM machines, banks, airports, hospitals, pet shops, schools, universities or police stations. Reach your every destination on time and save the routes for your next trip. Features of Skymaster app :- * Best object tracking software for your car, bike etc.. * supports 200+ devices with all notifications * Fuel consumption report. * Real-time tracking on your computer or another smartphone * Monthly driving & stoppage report. * Avoid traffic blocks and catch the bus with updated ETAs. Permissions which you want to follow :- * Internet permission for route sharing. * Storage permission for route saving. * Photo permission for joining photos with a route. * Location permission for route recording.

Screenshots

Altimeter4 screens
Skymaster SM4 screens

Verdict

The call

The clearest difference is in-app purchases: Skymaster SM at none against Altimeter's 5. Skymaster SM also leads on update cadence (every 11 days vs every 3 months) and iOS requirement (15.0 vs 26.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Altimeter sells 5 in-app purchases, starting at $1.99 per year. Skymaster SM asks for nothing beyond the download.

UpkeepUpdate frequency

Altimeter ships an update every 3 months, Skymaster SM every 11 days. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
Altimeter versus Skymaster SM: the parameters behind the verdict, then further details
ParameterAltimeterSkymaster SM
PriceFreeFree
Rating4.6 (21 ratings) — better—
Positive reviews96.2% of reviews—
Number of ratings21 — better—
Update frequencyEvery 3 monthsEvery 11 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size17 MB241 MB
Age rating4+4+
Developer22of8 GmbHSmartsurv

In-app purchases

5 purchases

Altimeter

Subscriptions1
  • Supporter$1.991 Year
One-time4
  • Generous tip$1.99
  • Massive tip$3.99
  • Amazing tip$8.99
Show 1 more
  • Buy me a Mac$599.99
None

Skymaster SM

No in-app purchases

Questions

Is Altimeter free?
Altimeter is free to download, with in-app purchases available.
Is Skymaster SM free?
Skymaster SM is free to download, with no in-app purchases.
Do Altimeter or Skymaster SM have ads?
Neither Altimeter nor Skymaster SM shows ads.
Which is updated more often, Altimeter or Skymaster SM?
Altimeter ships an update every 3 months, and Skymaster SM every 11 days. Most recently, Altimeter was updated on October 24, 2026 and Skymaster SM on October 20, 2026.

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