# Compass Map Barometer vs 亿方圆

The clearest difference is ads: 亿方圆 at none against Compass Map Barometer's shown. 亿方圆 also leads on update cadence (every 3 weeks vs every 7 months). Compass Map Barometer's advantage is iOS requirement (13 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Compass Map Barometer ships an update every 7 months, 亿方圆 every 3 weeks. The most recent releases landed on November 10, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Compass Map Barometer | 亿方圆 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (132 ratings)](https://appshunter.io/ios/app/compass-map-barometer/id553118179/reviews)** | — |
| Number of ratings | **132** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 10 MB | 66 MB |
| Requires iOS | **13** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) | [新芳 郑](https://appshunter.io/developer/1727598929) |

## What reviewers say

### Compass Map Barometer

[App page](https://appshunter.io/ios/app/compass-map-barometer/id553118179)

This application provides a digital compass to easily identify cardinal directions and any arbitrary direction. It offers the flexibility to switch between magnetic and true north, and includes a map rotation feature. A barometer function is also available on compatible devices.

**Highlights:** Electronic compass, Magnetic and true north modes, Map rotation, Barometer function, Designates cardinal directions

**Features:** Vision Pro support

**In-app purchases:** none


### 亿方圆

[App page](https://appshunter.io/ios/app/id6478103930)

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

**In-app purchases:** none


## Frequently asked questions

### Is Compass Map Barometer free?

Compass Map Barometer is free to download, with no in-app purchases.

### Is 亿方圆 free?

亿方圆 is free to download, with no in-app purchases.

### Do Compass Map Barometer or 亿方圆 have ads?

Compass Map Barometer shows ads; 亿方圆 does not.

### Which is updated more often, Compass Map Barometer or 亿方圆?

Compass Map Barometer ships an update every 7 months, and 亿方圆 every 3 weeks. Most recently, Compass Map Barometer was updated on November 10, 2026 and 亿方圆 on November 12, 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.*