ST Translator Pro vs One
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ST Translator Pro
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.
- 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
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Welcome to use ST Translator, the ST Translator is specially designed to work with the Supreme Translation Earphone. The ST Translator comes with below outstanding features: 1. Real-time 2 way voice translation with 5 optional modes: * Face to face communication. Communicate in real time with people you meet during traveling. * Group communication. Communicate in real time with a group of people, each in their own language. * Instant communication. Communicate in real time with another user who has the translator earphone. * Language tutor. Practice & learn languages by using the translator earphone. * Broadcast. Speak to a group of people who use the translator earphone, each in their own language. 2. Support more than 30 different languages. 3. Verbal and visual translations. 4. Your best tool when you visit a foreign country.
One
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.
- Voice-to-text conversion
- Multilingual translation
- Speech synthesis
- Supports over 100 languages
- Effortless voice input
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Convenient and effortless: Touch the area where you want to enter text, press the button, and then say what you want to say, we will automatically convert it into text for you, no need to manually enter it, which is convenient and labor-saving. Barrier-free communication: In addition to voice input, we also provide translation services that can be converted into any language you set. Multilingual support: We provide speech recognition, text translation and speech synthesis services in more than 100 languages, covering most people in the world.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ST Translator Pro | One |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | 2.3 (188 ratings) |
| Positive reviews | — | 13.7% of reviews |
| Number of ratings | 3 | 188 — better |
| Update frequency | Fortnightly — better | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 73 MB | 218 MB |
| Age rating | 4+ | 4+ |
| Developer | Casa Innovations Group LLC | Hangzhou zhidou Technology Co., Ltd. |
Customer experience
ST Translator Pro
One
Bugs and requests
ST Translator Pro
Not enough reviews yet to summarise bugs or requests.
One
Reported bugs
3 issues- Device not authorized
- App crashes after updates
- Bluetooth connectivity problems
Requested features
3 requests- More language options
- Customizable voice options
- Improved conversation mode
In-app purchases
ST Translator Pro
No in-app purchases
One
- 1年在线翻译$0.99
- 视频通话时长1分钟$0.99
- Bluetooth stick (1 year)$4.99
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- Offline package 1 year$6.99
- Video call duration 1 hour$7.99
- Bluetooth stick (2 years)$9.99
- Offline package 2 year$9.99
- Call translation (60 minutes)$9.99
- Offline package 7 days$9.99
- Offline package 30 days$19.99
- Basic Services (1 year)$24.99
- Basic Services (2 years)$39.99
- Video call duration 10 hours$49.99
- Call translation (600 minutes)$69.99
- Video call duration 1 month$79.99
