# ONE TAITRA vs 律介

The clearest difference is update cadence: 律介 at every 5 weeks against ONE TAITRA's every 3 months. ONE TAITRA's advantage is iOS requirement (11.0 vs 15.0). 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.

ONE TAITRA ships an update every 3 months, 律介 every 5 weeks. The most recent releases landed on October 26, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | ONE TAITRA | 律介 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Size | 12 MB | 12 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Taiwan External Trade Development Council](https://appshunter.io/developer/485204963) | [CHIA CHEN CHANG](https://appshunter.io/developer/1519782347) |

## What reviewers say

### ONE TAITRA

[App page](https://appshunter.io/ios/app/one-taitra/id1439153494)

**In-app purchases:** none


### 律介

[App page](https://appshunter.io/ios/app/id6447676737)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ONE TAITRA free?

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

### Is 律介 free?

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

### Do ONE TAITRA or 律介 have ads?

Neither ONE TAITRA nor 律介 shows ads.

### Which is updated more often, ONE TAITRA or 律介?

ONE TAITRA ships an update every 3 months, and 律介 every 5 weeks. Most recently, ONE TAITRA was updated on October 26, 2026 and 律介 on October 15, 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.*