# 灵线 vs Yi Spoken

The clearest difference is update cadence: 灵线 at every 3 days against Yi Spoken's every 11 days. Yi Spoken's advantage is iOS requirement (15.6 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 灵线 sells 2 in-app purchases, starting at $4.99 per month and Yi Spoken sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

灵线 ships an update every 3 days, Yi Spoken every 11 days. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 灵线 | Yi Spoken |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 11 days |
| Size | 28 MB | 182 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hefei Yi Qicheng Technology Co., Ltd.](https://appshunter.io/developer/1895580826) | [Yiyitong (Xiamen) Technology Co., Ltd](https://appshunter.io/developer/1754062809) |

## What reviewers say

### 灵线

[App page](https://appshunter.io/ios/app/pdfai/id6763971571)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度订阅 | $4.99 | per month |
| 年度订阅 | $39.99 | per year |


### Yi Spoken

[App page](https://appshunter.io/ios/app/yi-spoken/id6787878271)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Month Card | $2.99 | one-time |
| Season Card | $6.99 | one-time |
| Annual Card | $19.99 | one-time |


## Frequently asked questions

### Is 灵线 free?

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

### Is Yi Spoken free?

Yi Spoken is free to download, with in-app purchases available.

### Do 灵线 or Yi Spoken have ads?

Neither 灵线 nor Yi Spoken shows ads.

### Which is updated more often, 灵线 or Yi Spoken?

灵线 ships an update every 3 days, and Yi Spoken every 11 days. Most recently, 灵线 was updated on October 20, 2026 and Yi Spoken on October 25, 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.*