# Kainy vs U空间

The clearest difference is in-app purchases: U空间 at none against Kainy's 1. Kainy's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Kainy sells 1 in-app purchase, starting at $1.99 per year. U空间 asks for nothing beyond the download.

Kainy ships an update every 3 weeks, U空间 every 2 months. The most recent releases landed on June 3, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Kainy | U空间 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (4 ratings)](https://appshunter.io/ios/app/kainy/id1574032305/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Subscription | — |
| Size | 41 MB | 50 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Qucai Laicai (Shenzhen) Network Co., Ltd.](https://appshunter.io/developer/1816735640) | [RUIJIE NETWORKS CO., LTD.](https://appshunter.io/developer/580051080) |

## What reviewers say

### Kainy

[App page](https://appshunter.io/ios/app/kainy/id1574032305)

This app offers a minimalist web browsing experience, eliminating traditional address and search bars. It provides unique ways to open URLs, including QR code scanning, clipboard reading, and app schemes.

**Highlights:** Address and search bar-free interface, QR code URL scanning, Clipboard URL reading, App scheme URL opening, Minimalist design

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 包年会员 | $1.99 | per year |


### U空间

[App page](https://appshunter.io/ios/app/u/id1603172202)

**In-app purchases:** none


## Frequently asked questions

### Is Kainy free?

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

### Is U空间 free?

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

### Do Kainy or U空间 have ads?

Neither Kainy nor U空间 shows ads.

### Which is updated more often, Kainy or U空间?

Kainy ships an update every 3 weeks, and U空间 every 2 months. Most recently, Kainy was updated on June 3, 2026 and U空间 on September 16, 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.*