# Spring Soko vs U

The clearest difference is update cadence: U at every 5 weeks against Spring Soko's every 3 months. U also leads on iOS requirement (14.0 vs 16.0). 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.

Spring Soko ships an update every 3 months, U every 5 weeks. The most recent releases landed on September 30, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Spring Soko | U |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 78 MB | 83 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Emmanuel Nnko](https://appshunter.io/developer/1534622246) | [Rocket Technologies Limited](https://appshunter.io/developer/1535174925) |

## What reviewers say

### Spring Soko

[App page](https://appshunter.io/ios/app/spring-soko/id1540547325)

**Features:** macOS Compatibility

**In-app purchases:** none


### U

[App page](https://appshunter.io/ios/app/u-world/id6749352814)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spring Soko free?

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

### Is U free?

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

### Do Spring Soko or U have ads?

Neither Spring Soko nor U shows ads.

### Which is updated more often, Spring Soko or U?

Spring Soko ships an update every 3 months, and U every 5 weeks. Most recently, Spring Soko was updated on September 30, 2026 and U on September 8, 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.*