# 国标通 vs UKiSO

The clearest difference is update cadence: UKiSO at fortnightly against 国标通's every 9 months. UKiSO also leads on iOS requirement (10.0 vs 13.0). 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.

国标通 ships an update every 9 months, UKiSO fortnightly. The most recent releases landed on October 27, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | 国标通 | UKiSO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Size | 38 MB | 89 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [National Center of Standards Evaluation, SAMR](https://appshunter.io/developer/1688507912) | [HongZhao Zhang](https://appshunter.io/developer/1272804431) |

## What reviewers say

### 国标通

[App page](https://appshunter.io/ios/app/id6449272441)

**Features:** macOS Compatibility

**In-app purchases:** none


### UKiSO

[App page](https://appshunter.io/ios/app/ukiso-ota/id6746636907)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 国标通 free?

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

### Is UKiSO free?

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

### Do 国标通 or UKiSO have ads?

Neither 国标通 nor UKiSO shows ads.

### Which is updated more often, 国标通 or UKiSO?

国标通 ships an update every 9 months, and UKiSO fortnightly. Most recently, 国标通 was updated on October 27, 2026 and UKiSO on October 11, 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.*