# Realtime Altimeter vs 悦行通

The clearest difference is in-app purchases: 悦行通 at none against Realtime Altimeter's 1. Realtime Altimeter's advantage is update cadence (every 2 weeks vs every 5 weeks) and iOS requirement (13 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Realtime Altimeter sells 1 one-off in-app purchase. 悦行通 asks for nothing beyond the download.

Realtime Altimeter ships an update every 2 weeks, 悦行通 every 5 weeks. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Realtime Altimeter | 悦行通 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (403 ratings)](https://appshunter.io/ios/app/realtime-altimeter/id1039285626/reviews)** | — |
| Number of ratings | **403** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 23 MB |
| Requires iOS | **13** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zhenlai Xia](https://appshunter.io/developer/1435731218) | [杰旺 盘](https://appshunter.io/developer/6777593924) |

## What reviewers say

### Realtime Altimeter

[App page](https://appshunter.io/ios/app/realtime-altimeter/id1039285626)

This app provides real-time altitude readings, even without an internet connection. It also includes a compass, velocimeter, and a camera that can watermark photos with location data, making it ideal for travelers and outdoor adventurers.

**Highlights:** Offline altimeter, Real-time altitude, Integrated compass, Velocimeter for speed, Watermark camera with GPS data

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 📸 Captures photos with altitude watermark
- ✈️ Useful for travel and outdoor activities
- 🆓 Free to use
- 👍 Very practical and useful
- 📍 Provides location and altitude information

**What reviewers complain about**

- 🧭 Compass missing East/West points
- 📉 Barometric pressure inaccurate
- ⚖️ Altitude readings fluctuate
- 📷 Cannot take landscape photos
- 📶 Not always immediate altitude reaction without network

**Reported bugs**

- Compass missing cardinal points
- Inaccurate barometric pressure readings
- Fluctuating and inaccurate altitude readings
- Watch app not installing after purchase
- Altimeter not working during flight

**Requested features**

- Announce current altitude based on time or altitude
- Larger font size for speed readout
- Option to switch altitude and speed display positions
- Convert camera location address to text
- Add barometric pressure display


### 悦行通

[App page](https://appshunter.io/ios/app/e/id6787814925)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Realtime Altimeter free?

Realtime Altimeter is free to download, with in-app purchases available.

### Is 悦行通 free?

悦行通 is free to download, with no in-app purchases.

### Do Realtime Altimeter or 悦行通 have ads?

Both Realtime Altimeter and 悦行通 show ads.

### Which is updated more often, Realtime Altimeter or 悦行通?

Realtime Altimeter ships an update every 2 weeks, and 悦行通 every 5 weeks. Most recently, Realtime Altimeter was updated on October 12, 2026 and 悦行通 on October 1, 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.*