# Yi Translate vs C3 Display Controller

The clearest difference is in-app purchases: C3 Display Controller at none against Yi Translate's 10. Yi Translate's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Yi Translate sells 10 one-off in-app purchases. C3 Display Controller asks for nothing beyond the download.

Yi Translate ships an update every 2 weeks, C3 Display Controller every 2 months. The most recent releases landed on September 20, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Yi Translate | C3 Display Controller |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 171 MB | 40 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yiyitong (Xiamen) Technology Co., Ltd](https://appshunter.io/developer/1754062809) | [nhnhn](https://appshunter.io/developer/1839898006) |

## What reviewers say

### Yi Translate

[App page](https://appshunter.io/ios/app/yi-translate/id6717588955)

**Features:** macOS Compatibility, Siri integration

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 300 conversations/3 months | $0.99 | one-time |
| Yi translate Starter Pack | $1.99 | one-time |
| Monthly Unlimited | $2.99 | one-time |
| 1200 conversations/6 months | $2.99 | one-time |
| Quarterly Special | $6.99 | one-time |
| 3000 conversations/12 months | $6.99 | one-time |
| Yi translate Pro Pack | $17.99 | one-time |
| Annual Elite | $19.99 | one-time |
| 会议纪要优惠套餐 | $19.99 | one-time |
| Yi translate Premium Pack | $39.99 | one-time |


### C3 Display Controller

[App page](https://appshunter.io/ios/app/c3-display-controller/id6757577137)

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

**In-app purchases:** none


## Frequently asked questions

### Is Yi Translate free?

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

### Is C3 Display Controller free?

C3 Display Controller is free to download, with no in-app purchases.

### Do Yi Translate or C3 Display Controller have ads?

Neither Yi Translate nor C3 Display Controller shows ads.

### Which is updated more often, Yi Translate or C3 Display Controller?

Yi Translate ships an update every 2 weeks, and C3 Display Controller every 2 months. Most recently, Yi Translate was updated on September 20, 2026 and C3 Display Controller on September 10, 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.*