# U vs SAP

The clearest difference is update cadence: SAP at every 2 weeks against U's every 5 months. SAP also leads on iOS requirement (13.0 vs 15). 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.

U ships an update every 5 months, SAP every 2 weeks. The most recent releases landed on August 31, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | U | SAP |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 56 MB | 47 MB |
| Requires iOS | 15 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [UNICEF](https://appshunter.io/developer/446804206) | [Kloptek, S. de R.L. de C.V.](https://appshunter.io/developer/1629064596) |

## What reviewers say

### U

[App page](https://appshunter.io/ios/app/u-report/id1598072043)

**Features:** Vision Pro support

**In-app purchases:** none


### SAP

[App page](https://appshunter.io/ios/app/sap-id/id1629064324)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is U free?

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

### Is SAP free?

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

### Do U or SAP have ads?

Neither U nor SAP shows ads.

### Which is updated more often, U or SAP?

U ships an update every 5 months, and SAP every 2 weeks. Most recently, U was updated on August 31, 2026 and SAP on May 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.*