# 数字成都 vs 紫微通書

The clearest difference is update cadence: 紫微通書 at every 4 weeks against 数字成都's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 数字成都 sells 8 one-off in-app purchases and 紫微通書 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

数字成都 ships an update every 3 months, 紫微通書 every 4 weeks. The most recent releases landed on February 16, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | 数字成都 | 紫微通書 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id6443444483/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 weeks** |
| Size | 135 MB | 128 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 9+ |
| Developer | [龙源数字城市(北京)科技有限公司](https://appshunter.io/developer/1484299426) | [Shenzhen Tianxun Culture Technology Co.,Ltd.](https://appshunter.io/developer/1643867629) |

## What reviewers say

### 数字成都

[App page](https://appshunter.io/ios/app/id1576645683)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6杂志币 | $0.99 | one-time |
| 88杂志币 | $12.99 | one-time |
| 198杂志币 | $29.99 | one-time |
| 名刊会会员365天 | $29.99 | one-time |
| 288杂志币 | $45.99 | one-time |
| 388杂志币 | $59.99 | one-time |
| 数字城市会员365天 | $59.99 | one-time |
| 588杂志币 | $89.99 | one-time |


### 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 数字成都 free?

数字成都 is free to download, with in-app purchases available.

### Is 紫微通書 free?

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

### Do 数字成都 or 紫微通書 have ads?

Neither 数字成都 nor 紫微通書 shows ads.

### Which is updated more often, 数字成都 or 紫微通書?

数字成都 ships an update every 3 months, and 紫微通書 every 4 weeks. Most recently, 数字成都 was updated on February 16, 2026 and 紫微通書 on September 19, 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.*