# 指南针 vs 紫微通書

The clearest difference is review sentiment: 紫微通書 at 50% against 指南针's 0%. 紫微通書 also leads on ads (none vs shown) and rating (5.0 vs 4.5). 指南针's advantage is in-app purchases (none vs 5) and ratings volume (96 vs 4). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. 紫微通書 sells 5 one-off in-app purchases. 指南针 asks for nothing beyond the download.

紫微通書 holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 指南针 has 96 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of 指南针's written reviews are positive against 50% of 紫微通書's.

指南针 ships an update every 2 months, 紫微通書 every 4 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 指南针 | 紫微通書 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (96 ratings)](https://appshunter.io/ios/app/id1628282305/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id6443444483/reviews)** |
| Number of ratings | **96** | 4 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Ad-supported | — |
| Size | 41 MB | 128 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [娟 钟](https://appshunter.io/developer/1604186121) | [Shenzhen Tianxun Culture Technology Co.,Ltd.](https://appshunter.io/developer/1643867629) |

## What reviewers say

### 指南针

[App page](https://appshunter.io/ios/app/id1628282305)

A professional compass app for outdoor adventures, offering essential tools like a flashlight, GPS, and astronomical navigation. It provides detailed environmental data and accurate positioning to prevent getting lost.

**Highlights:** Professional compass, Flashlight, GPS with latitude/longitude, Star finder, Sunrise/sunset times, Altitude and direction, Environmental data (magnetic field, air quality)

**Features:** macOS Compatibility

**In-app purchases:** none


### 紫微通書

[App page](https://appshunter.io/ios/app/id6443444483)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A项购买 | $6.99 | one-time |
| B项购买 | $19.99 | one-time |
| C项购买 | $29.99 | one-time |
| D项购买 | $59.99 | one-time |
| VIP购买 | $99.99 | one-time |


## Frequently asked questions

### Is 指南针 free?

指南针 is free to download, with no in-app purchases.

### Is 紫微通書 free?

紫微通書 is free to download, with in-app purchases available.

### Which has better reviews, 指南针 or 紫微通書?

紫微通書 is rated higher. 指南针 averages 4.5 out of 5 from 96 ratings, while 紫微通書 averages 5.0 from 4 ratings.

### Do 指南针 or 紫微通書 have ads?

指南针 shows ads; 紫微通書 does not.

### Which is updated more often, 指南针 or 紫微通書?

指南针 ships an update every 2 months, and 紫微通書 every 4 weeks. Most recently, 指南针 was updated on October 24, 2026 and 紫微通書 on October 30, 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.*