# Altitude Compass vs 超会算

The clearest difference is ratings volume: Altitude Compass at 17 against 超会算's 1. On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Altitude Compass sells 2 one-off in-app purchases and 超会算 sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Altitude Compass against 5.0 for 超会算. That said, the two scores are not equally well evidenced: Altitude Compass has 17 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 95% of Altitude Compass's written reviews are positive against 100% of 超会算's.

Altitude Compass ships an update every 5 days, 超会算 every 3 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Altitude Compass | 超会算 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (17 ratings)](https://appshunter.io/ios/app/altitude-compass/id1642364007/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/id6763838557/reviews) |
| Number of ratings | **17** | 1 |
| Positive reviews | 95.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 5 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [锦滔 欧](https://appshunter.io/developer/1524196172) | [Wuhan Xingyun Technology Co., Ltd.](https://appshunter.io/developer/1853186645) |

## What reviewers say

### Altitude Compass

[App page](https://appshunter.io/ios/app/altitude-compass/id1642364007)

This app provides real-time altitude, pressure, and location data for outdoor activities. It offers customizable compass dials and display themes, with an optional full version for enhanced photo watermarking and personalization.

**Highlights:** Real-time altitude and pressure readings, GPS coordinates and nearby addresses, Customizable compass dials and themes, Home Screen, Lock Screen, and StandBy widgets, Watermark camera for photos, Photo information preservation, Customizable watermark content

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day Trial | Free | one-time |
| Full Version Unlock | $0.99 | one-time |


### 超会算

[App page](https://appshunter.io/ios/app/id6763838557)

This app offers a comprehensive suite of calculation tools, including standard, scientific, and dual calculators, alongside over 30 unit converters for everyday needs. It also provides specialized financial, health, and professional calculation modules, all within a privacy-focused, user-friendly interface.

**Highlights:** Standard, scientific, and dual calculators, 30+ unit and currency converters, Financial calculators (mortgage, interest, compound interest), Date and time calculations, Unit conversion for length, area, temperature, and more, High-precision calculations, Privacy-focused with no data collection

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calc Week Pro | $0.99 | per 7 days |
| Calc Pro | $0.99 | one-time |


## Frequently asked questions

### Is Altitude Compass free?

Altitude Compass is free to download, with in-app purchases available.

### Is 超会算 free?

超会算 is free to download, with in-app purchases available.

### Which has better reviews, Altitude Compass or 超会算?

Altitude Compass and 超会算 are both rated 5.0 out of 5 on the App Store, from 17 and 1 ratings respectively.

### Do Altitude Compass or 超会算 have ads?

Neither Altitude Compass nor 超会算 shows ads.

### Which is updated more often, Altitude Compass or 超会算?

Altitude Compass ships an update every 5 days, and 超会算 every 3 days. Most recently, Altitude Compass was updated on November 7, 2026 and 超会算 on October 31, 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.*