# 九启数界 vs 九歌集

The clearest difference is in-app purchases: 九启数界 at none against 九歌集's 7. 九歌集's advantage is update cadence (daily vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 九歌集 sells 7 one-off in-app purchases. 九启数界 asks for nothing beyond the download.

九启数界 ships an update fortnightly, 九歌集 daily. The most recent releases landed on September 5, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | 九启数界 | 九歌集 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Size | 234 MB | 53 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [JiuQiShuJie(Tianjin)Technology Co., Ltd](https://appshunter.io/developer/1719818979) | [杭州原与宙科技有限公司](https://appshunter.io/developer/1601214231) |

## What reviewers say

### 九启数界

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

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

**In-app purchases:** none


### 九歌集

[App page](https://appshunter.io/ios/app/id6742526554)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 充值148 | $19.99 | one-time |
| 充值288 | $39.99 | one-time |
| 充值798 | $99.99 | one-time |
| 充值1048 | $149.99 | one-time |
| 充值1598 | $229.99 | one-time |
| 充值3298 | $499.99 | one-time |
| 充值4498 | $599.99 | one-time |


## Frequently asked questions

### Is 九启数界 free?

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

### Is 九歌集 free?

九歌集 is free to download, with in-app purchases available.

### Do 九启数界 or 九歌集 have ads?

Neither 九启数界 nor 九歌集 shows ads.

### Which is updated more often, 九启数界 or 九歌集?

九启数界 ships an update fortnightly, and 九歌集 daily. Most recently, 九启数界 was updated on September 5, 2026 and 九歌集 on September 18, 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.*