Comparison

Altimeter vs Altimeter PRO with Compass

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

Altimeter PRO with Compass

This app provides real-time altitude, GPS coordinates, and air pressure readings. It includes a built-in compass and map navigation features, ideal for outdoor activities. A watermarking camera function also records location data on photos.

Highlights
  • Real-time altitude measurement
  • Built-in compass
  • Map navigation with coordinates
  • Accurate GPS positioning
  • Watermarking camera for location data
Features
Read full description

Altitude PRO is a necessary APP for outdoor travel and reaching people. It has powerful and accurate GPS positioning function. It allows you to get the information of current position, such as altitude, GPS position, air pressure, longitude and latitude coordinates in real time at the fastest speed. It also has built-in compass function. It will be a necessary real-time altitude measuring application for outdoor activities. For example: hiking, walking, skiing, rock climbing, mountain biking, hiking, mountain climbing, weather, compass, camping, outdoor, backpack, flight altitude and so on. 【Characteristic function】 1. Altitude meter: real-time altitude measurement, without network can accurately measure the location of altitude and longitude and latitude; 2. Compass: The built-in compass function allows you to get the direction and latitude information of your location more quickly. 3. Map navigation: support to view the map function, coordinates and elevation information of the current location and display on the map; 4. GPS positioning: GPS real-time positioning, making altitude measurement information faster and more accurate; 5. Watermarking camera: Watermarking photography is supported. The altitude, air pressure, longitude and latitude information of the photograph will be recorded by watermarking. 【Altitude subscription】 You can subscribe for access to the full list of Altitude PRO- with Compass. Payment will be charged to iTunes Account at confirmation of purchase. You can try all VIP benefits during the subscription period. Subscription automatically renews for the same price and duration period as the original "one month" package unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period at the cost of the monthly package Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's iTunes Account Settings after purchase. Links to our Terms of Service and Privacy Policy can be found below. Privacy Policy: http://didiapps.com/assets/agreement/altitude_privacypolicy_en.html Terms of Use: http://didiapps.com/assets/agreement/altitude_subscription_en.html

Screenshots

Altimeter4 screens
Altimeter PRO with Compass3 screens

Verdict

The call

The clearest difference is review sentiment: Altimeter at 96% against Altimeter PRO with Compass's 0%. Altimeter also leads on rating (4.6 vs 4.0) and ads (none vs shown). Altimeter PRO with Compass's advantage is iOS requirement (10.0 vs 26.0). On price, update cadence, in-app purchases 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 and Altimeter PRO with Compass sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Altimeter holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Altimeter has 21 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 96% of Altimeter's written reviews are positive against 0% of Altimeter PRO with Compass's.

UpkeepUpdate frequency

Altimeter ships an update every 3 months, Altimeter PRO with Compass every 5 months. Both last shipped on November 2, 2026.

Scorecard6 real differences · 4 level
Altimeter versus Altimeter PRO with Compass: the parameters behind the verdict, then further details
ParameterAltimeterAltimeter PRO with Compass
PriceFreeFree
Rating4.6 (21 ratings) — better4.0 (3 ratings)
Positive reviews96.2% of reviews — better0.0% of reviews
Number of ratings21 — better3
Update frequencyEvery 3 months — betterEvery 5 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS26.010.0 — better
Further details — not scored
Size17 MB11 MB
Age rating4+4+
Developer22of8 GmbH健 王

Customer experience

Altimeter

All ratings21 ratings
Positive90.5%
Neutral0.0%
Negative9.5%
Written reviews26 reviews
Positive96.2%
Neutral0.0%
Negative3.8%

Altimeter PRO with Compass

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews5 reviews
Positive0.0%
Neutral20.0%
Negative80.0%

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
2 purchases

Altimeter PRO with Compass

Subscriptions1
  • Altitude Monthly Member3 Days trial$0.991 Month
One-time1
  • VIP: Remove Ads Service$2.99

Questions

Is Altimeter free?
Altimeter is free to download, with in-app purchases available.
Is Altimeter PRO with Compass free?
Altimeter PRO with Compass is free to download, with in-app purchases available.
Which has better reviews, Altimeter or Altimeter PRO with Compass?
Altimeter is rated higher. Altimeter averages 4.6 out of 5 from 21 ratings, while Altimeter PRO with Compass averages 4.0 from 3 ratings.
Do Altimeter or Altimeter PRO with Compass have ads?
Altimeter PRO with Compass shows ads; Altimeter does not.
Which is updated more often, Altimeter or Altimeter PRO with Compass?
Altimeter ships an update every 3 months, and Altimeter PRO with Compass every 5 months. Most recently, Altimeter was updated on November 2, 2026 and Altimeter PRO with Compass on November 2, 2026.

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