# Stadia Altimeter vs WingLog ULM

The clearest difference is in-app purchases: Stadia Altimeter at none against WingLog ULM's 2. Stadia Altimeter also leads on iOS requirement (11.0 vs 17.0). WingLog ULM's advantage is update cadence (every 3 weeks vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. WingLog ULM sells 2 in-app purchases, starting at $3.99 per month. Stadia Altimeter asks for nothing beyond the download.

Stadia Altimeter ships an update every 9 months, WingLog ULM every 3 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Stadia Altimeter | WingLog ULM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stadia-altimeter/id1578419686/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 20 MB | 28 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Skeeter Enterprises LLC](https://appshunter.io/developer/1578419688) | [Giulio Fontana](https://appshunter.io/developer/1871597288) |

## What reviewers say

### Stadia Altimeter

[App page](https://appshunter.io/ios/app/stadia-altimeter/id1578419686)

This application displays your current altitude. It is designed for users who need to track their elevation, especially when engaging in outdoor activities. The app provides a straightforward way to monitor your height above sea level.

**Highlights:** Displays current altitude, Elevation tracking, Outdoor activity support, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


### WingLog ULM

[App page](https://appshunter.io/ios/app/winglog-ulm/id6774974451)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO Monthly Plan | $3.99 | per month |
| PRO Annual Plan | $24.99 | per year |


## Frequently asked questions

### Is Stadia Altimeter free?

Stadia Altimeter is free to download, with no in-app purchases.

### Is WingLog ULM free?

WingLog ULM is free to download, with in-app purchases available.

### Do Stadia Altimeter or WingLog ULM have ads?

Neither Stadia Altimeter nor WingLog ULM shows ads.

### Which is updated more often, Stadia Altimeter or WingLog ULM?

Stadia Altimeter ships an update every 9 months, and WingLog ULM every 3 weeks. Most recently, Stadia Altimeter was updated on October 24, 2026 and WingLog ULM on October 28, 2026.

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