# Altimeter vs Altimeter PRO with Compass

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.

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.

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.

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

## The numbers

| Metric | Altimeter | Altimeter PRO with Compass |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (21 ratings)](https://appshunter.io/ios/app/altimeter-elevation-and-gps/id1067580904/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/altimeter-pro-with-compass/id1454246052/reviews) |
| Number of ratings | **21** | 3 |
| Positive reviews | **96.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 11 MB |
| Requires iOS | 26.0 | **10.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [22of8 GmbH](https://appshunter.io/developer/502617768) | [健 王](https://appshunter.io/developer/1287497439) |

## What reviewers say

### Altimeter

[App page](https://appshunter.io/ios/app/altimeter-elevation-and-gps/id1067580904)

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:** Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Supporter | $1.99 | per year |
| Generous tip | $1.99 | one-time |
| Massive tip | $3.99 | one-time |
| Amazing tip | $8.99 | one-time |
| Buy me a Mac | $599.99 | one-time |


### Altimeter PRO with Compass

[App page](https://appshunter.io/ios/app/altimeter-pro-with-compass/id1454246052)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Altitude Monthly Member | $0.99 | per month |
| VIP: Remove Ads Service | $2.99 | one-time |


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*