# 芊云全景 vs DuoImage Viewer

The clearest difference is price: 芊云全景 at Free against DuoImage Viewer's $1.99. 芊云全景 also leads on update cadence (every 8 days vs every 5 weeks) and iOS requirement (15.1 vs 18.6). On ads, in-app purchases and device support there is nothing between them.

芊云全景 is free to download; DuoImage Viewer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

芊云全景 ships an update every 8 days, DuoImage Viewer every 5 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | 芊云全景 | DuoImage Viewer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6785545692/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 5 weeks |
| Monetization | Free | — |
| Size | 49 MB | 2 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Xi'an Sanqian World Network Technology Co., Ltd.](https://appshunter.io/developer/1720314368) | [余 杨](https://appshunter.io/developer/6784909940) |

## What reviewers say

### 芊云全景

[App page](https://appshunter.io/ios/app/id6785545692)

Capture and manage immersive 360-degree panoramic images of real-world spaces using your mobile device. Record rooms, campuses, workplaces, travel destinations, and more, or import existing images to organize your panoramic collection.

**Highlights:** Mobile 360 panorama capture, Import images from album, Manage personal panorama works, Immersive panorama browsing, Record space scenes

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

**In-app purchases:** none


### DuoImage Viewer

[App page](https://appshunter.io/ios/app/duoimage-viewer/id6788791560)

**In-app purchases:** none


## Frequently asked questions

### Is 芊云全景 free?

芊云全景 is free to download, with no in-app purchases.

### Is DuoImage Viewer free?

DuoImage Viewer costs $1.99, with no in-app purchases.

### Do 芊云全景 or DuoImage Viewer have ads?

Neither 芊云全景 nor DuoImage Viewer shows ads.

### Which is updated more often, 芊云全景 or DuoImage Viewer?

芊云全景 ships an update every 8 days, and DuoImage Viewer every 5 weeks. Most recently, 芊云全景 was updated on October 31, 2026 and DuoImage Viewer on October 31, 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.*