# Kantu vs chain

The clearest difference is price: chain at Free against Kantu's $1.99. chain also leads on update cadence (every 4 days vs every 9 days) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

chain is free to download; Kantu costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Kantu ships an update every 9 days, chain every 4 days. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Kantu | chain |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[1.5 (2 ratings)](https://appshunter.io/ios/app/kantu-image-viewer/id1458706066/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 30.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 4 days** |
| Monetization | Paid | — |
| Size | 17 MB | 25 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [俊锋 仝](https://appshunter.io/developer/1209824000) | [Devfly Digital d.o.o.](https://appshunter.io/developer/1800073858) |

## What reviewers say

### Kantu

[App page](https://appshunter.io/ios/app/kantu-image-viewer/id1458706066)

This tool allows you to view a wide range of image formats, including those not natively supported by your device. It integrates with your file system and other apps to open image files, offering thumbnail previews and Quick Look functionality.

**Highlights:** External image browsing, Support for unsupported formats, System native file system integration, Open image files from other apps, Image file thumbnails, Quick Look support

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

**In-app purchases:** none


### chain

[App page](https://appshunter.io/ios/app/chain-do/id6749516019)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kantu free?

Kantu costs $1.99, with no in-app purchases.

### Is chain free?

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

### Do Kantu or chain have ads?

Neither Kantu nor chain shows ads.

### Which is updated more often, Kantu or chain?

Kantu ships an update every 9 days, and chain every 4 days. Most recently, Kantu was updated on October 31, 2026 and chain 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.*