# One Button Chinese 一键英语 vs TransKoi

The clearest difference is in-app purchases: One Button Chinese 一键英语 at none against TransKoi's 6. One Button Chinese 一键英语 also leads on update cadence (every 3 days vs fortnightly). TransKoi's advantage is iOS requirement (14 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. TransKoi sells 6 in-app purchases, starting at $0.99 per 7 days. One Button Chinese 一键英语 asks for nothing beyond the download.

One Button Chinese 一键英语 ships an update every 3 days, TransKoi fortnightly. The most recent releases landed on July 7, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | One Button Chinese 一键英语 | TransKoi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/one-button-chinese/id6737454363/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Fortnightly |
| Monetization | Free | — |
| Size | 1 MB | 22 MB |
| Requires iOS | 18.0 | **14** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhongding Cui](https://appshunter.io/developer/1776483917) | [厦门智伽科技有限公司](https://appshunter.io/developer/1851952936) |

## What reviewers say

### One Button Chinese 一键英语

[App page](https://appshunter.io/ios/app/one-button-chinese/id6737454363)

This app offers instant, AI-powered translations between Chinese and English with a single tap. It works offline and features a clean design, making it ideal for travelers, students, and professionals.

**Highlights:** One-tap translation, Smart AI translation, Offline functionality, Conversation memory, Clean design

**Features:** macOS Compatibility

**In-app purchases:** none


### TransKoi

[App page](https://appshunter.io/ios/app/transkoi/id6746327674)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| monthly subscribe | $0.99 | per 7 days |
| monthly subscribe | $1.99 | per month |
| 周会员 | $0.99 | one-time |
| 订阅 | $1.99 | one-time |
| 月度会员 | $3.99 | one-time |
| 年度会员 | $9.99 | one-time |


## Frequently asked questions

### Is One Button Chinese 一键英语 free?

One Button Chinese 一键英语 is free to download, with no in-app purchases.

### Is TransKoi free?

TransKoi is free to download, with in-app purchases available.

### Do One Button Chinese 一键英语 or TransKoi have ads?

Neither One Button Chinese 一键英语 nor TransKoi shows ads.

### Which is updated more often, One Button Chinese 一键英语 or TransKoi?

One Button Chinese 一键英语 ships an update every 3 days, and TransKoi fortnightly. Most recently, One Button Chinese 一键英语 was updated on July 7, 2026 and TransKoi on September 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.*