# ST Translator Pro vs One

The clearest difference is rating: ST Translator Pro at 3.7 against One's 2.3. ST Translator Pro also leads on in-app purchases (none vs 15) and update cadence (fortnightly vs monthly). One's advantage is ratings volume (188 vs 3). On price, ads and device support there is nothing between them.

Both are free to download. One sells 15 one-off in-app purchases. ST Translator Pro asks for nothing beyond the download.

ST Translator Pro holds the better App Store score, 3.7 against 2.3. That said, the two scores are not equally well evidenced: One has 188 ratings behind it against 3, so its average is the more settled of the two.

ST Translator Pro ships an update fortnightly, One monthly. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ST Translator Pro | One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/st-translator-pro/id1475218747/reviews)** | [2.3 (188 ratings)](https://appshunter.io/ios/app/one-click-translate/id6464308933/reviews) |
| Number of ratings | 3 | **188** |
| Positive reviews | — | 13.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 73 MB | 218 MB |
| Requires iOS | **10.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Casa Innovations Group LLC](https://appshunter.io/developer/1447256690) | [Hangzhou zhidou Technology Co., Ltd.](https://appshunter.io/developer/1148463678) |

## What reviewers say

### ST Translator Pro

[App page](https://appshunter.io/ios/app/st-translator-pro/id1475218747)

This application facilitates real-time voice translation for over 30 languages, designed to work seamlessly with specialized translation earphones. It offers various communication modes for one-on-one conversations, group interactions, and language learning.

**Highlights:** Real-time 2-way voice translation, Supports over 30 languages, Face-to-face communication mode, Group communication mode, Language tutor mode, Verbal and visual translations

**Features:** macOS Compatibility

**In-app purchases:** none


### One

[App page](https://appshunter.io/ios/app/one-click-translate/id6464308933)

Effortlessly convert spoken words into text and translate them into over 100 languages. This app simplifies communication by offering voice input, text translation, and speech synthesis, making it convenient and labor-saving.

**Highlights:** Voice-to-text conversion, Multilingual translation, Speech synthesis, Supports over 100 languages, Effortless voice input

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1年在线翻译 | $0.99 | one-time |
| 视频通话时长1分钟 | $0.99 | one-time |
| Bluetooth stick (1 year) | $4.99 | one-time |
| Offline package 1 year | $6.99 | one-time |
| Video call duration 1 hour | $7.99 | one-time |
| Bluetooth stick (2 years) | $9.99 | one-time |
| Offline package 2 year | $9.99 | one-time |
| Call translation (60 minutes) | $9.99 | one-time |
| Offline package 7 days | $9.99 | one-time |
| Offline package 30 days | $19.99 | one-time |
| Basic Services (1 year) | $24.99 | one-time |
| Basic Services (2 years) | $39.99 | one-time |
| Video call duration 10 hours | $49.99 | one-time |
| Call translation (600 minutes) | $69.99 | one-time |
| Video call duration 1 month | $79.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 One-click translation
- 💡 Useful for conversations

**What reviewers complain about**

- 🐛 Connection issues
- 🐛 Unreliable translations
- 🔋 Drains battery quickly
- 🔒 Authorization problems

**Reported bugs**

- Device not authorized
- App crashes after updates
- Bluetooth connectivity problems

**Requested features**

- More language options
- Customizable voice options
- Improved conversation mode


## Frequently asked questions

### Is ST Translator Pro free?

ST Translator Pro is free to download, with no in-app purchases.

### Is One free?

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

### Which has better reviews, ST Translator Pro or One?

ST Translator Pro is rated higher. ST Translator Pro averages 3.7 out of 5 from 3 ratings, while One averages 2.3 from 188 ratings.

### Do ST Translator Pro or One have ads?

Neither ST Translator Pro nor One shows ads.

### Which is updated more often, ST Translator Pro or One?

ST Translator Pro ships an update fortnightly, and One monthly. Most recently, ST Translator Pro was updated on October 23, 2026 and One on October 27, 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.*