# a.b.art vs U空间

The clearest difference is update cadence: a.b.art at every 3 weeks against U空间's every 2 months. a.b.art also leads on iOS requirement (9.0 vs 11.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

a.b.art ships an update every 3 weeks, U空间 every 2 months. The most recent releases landed on October 1, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | a.b.art | U空间 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 27 MB | 50 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Xiamen ZStime Co., Ltd.](https://appshunter.io/developer/374142269) | [RUIJIE NETWORKS CO., LTD.](https://appshunter.io/developer/580051080) |

## What reviewers say

### a.b.art

[App page](https://appshunter.io/ios/app/abart/id1214587577)

**Features:** macOS Compatibility

**In-app purchases:** none


### U空间

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

This remote desktop service software utilizes virtualization technology for unified user information storage and management, enabling efficient resource sharing. It provides a cross-location file sharing solution and supports remote work by allowing users to access resources from anywhere.

**Highlights:** Virtualization technology, Unified user information storage, Efficient resource sharing, Remote desktop service, Cross-location file sharing, Access resources from anywhere

**In-app purchases:** none


## Frequently asked questions

### Is a.b.art free?

a.b.art is free to download, with no in-app purchases.

### Is U空间 free?

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

### Do a.b.art or U空间 have ads?

Neither a.b.art nor U空间 shows ads.

### Which is updated more often, a.b.art or U空间?

a.b.art ships an update every 3 weeks, and U空间 every 2 months. Most recently, a.b.art was updated on October 1, 2026 and U空间 on October 9, 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.*