# DuoLens vs 姓名CP

The clearest difference is in-app purchases: DuoLens at none against 姓名CP's 3. DuoLens also leads on update cadence (every 10 days vs every 18 months). 姓名CP's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. 姓名CP sells 3 in-app purchases, starting at $0.99 per month. DuoLens asks for nothing beyond the download.

DuoLens ships an update every 10 days, 姓名CP every 18 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | DuoLens | 姓名CP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 10 days** | Every 18 months |
| Size | 8 MB | 13 MB |
| Requires iOS | 17.4 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [明伟 陈](https://appshunter.io/developer/726238814) | [Wuhan Tufu Technology Co.,Ltd](https://appshunter.io/developer/1619750692) |

## What reviewers say

### DuoLens

[App page](https://appshunter.io/ios/app/duolens-front-and-back-camera/id1579235028)

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

**In-app purchases:** none


### 姓名CP

[App page](https://appshunter.io/ios/app/cp/id6468895244)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1个月 | $0.99 | per month |
| 1年订阅 | $3.99 | per year |
| 终身使用 | $6.99 | one-time |


## Frequently asked questions

### Is DuoLens free?

DuoLens is free to download, with no in-app purchases.

### Is 姓名CP free?

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

### Do DuoLens or 姓名CP have ads?

DuoLens shows ads; 姓名CP does not.

### Which is updated more often, DuoLens or 姓名CP?

DuoLens ships an update every 10 days, and 姓名CP every 18 months. Most recently, DuoLens was updated on October 24, 2026 and 姓名CP on October 27, 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.*