# 伏羲云 vs 九启数界

The clearest difference is in-app purchases: 九启数界 at none against 伏羲云's 10. 九启数界 also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 伏羲云 sells 9 one-off in-app purchases. 九启数界 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 伏羲云 | 九启数界 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Size | 80 MB | 234 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [北京玖扬博文文化发展有限公司](https://appshunter.io/developer/1444430492) | [JiuQiShuJie(Tianjin)Technology Co., Ltd](https://appshunter.io/developer/1719818979) |

## What reviewers say

### 伏羲云

[App page](https://appshunter.io/ios/app/id1585742329)

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 文化课程 | $1.99 | one-time |
| 了凡四训 | $1.99 | one-time |
| 走近大诗人系列 | $1.99 | one-time |
| 篆刻的技术与艺术 | $1.99 | one-time |
| 考古系列讲座-为什么不挖秦始皇陵 | $1.99 | one-time |
| 战国策 | $1.99 | one-time |
| 《春秋战国史》 | $1.99 | one-time |
| 《二十四史名篇导读》 | $1.99 | one-time |
| 敦煌古代音乐的分类 | $1.99 | one-time |


### 九启数界

[App page](https://appshunter.io/ios/app/id6478385125)

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

**In-app purchases:** none


## Frequently asked questions

### Is 伏羲云 free?

伏羲云 is free to download, with in-app purchases available.

### Is 九启数界 free?

九启数界 is free to download, with no in-app purchases.

### Do 伏羲云 or 九启数界 have ads?

Neither 伏羲云 nor 九启数界 shows ads.

### Which is updated more often, 伏羲云 or 九启数界?

伏羲云 ships an update fortnightly, and 九启数界 fortnightly. Most recently, 伏羲云 was updated on November 3, 2026 and 九启数界 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.*