One vs ConTutor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
ConTutor
Enhance your language skills through interactive conversations and real-time translation. This app offers intelligent vocabulary building and AI-powered practice scenarios to boost your oral proficiency and confidence.
- Real-time bilingual translation
- Intelligent vocabulary notebook
- AI scenario-based oral practice
- Categorized word review
- Speech identification and output
- Confidence building exercises
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ConTutor is an intelligent app designed for language learning and oral proficiency improvement. After connecting your device, you can complete the full learning process of "translation, accumulation, practice, and reinforcement" in real conversations, making every word spoken more valuable. With real-time bilingual translation, the system can quickly identify speech and output translations, helping you understand and express yourself instantly during communication. Using an intelligent vocabulary notebook, it automatically accumulates high-frequency words and common expressions, supporting categorized viewing and review. Combined with AI scenario-based oral practice, it generates conversational scenarios closely related to daily life and workplace settings, continuously improving listening, speaking skills, and confidence in expression based on your learning content.
Screenshots
Verdict
The clearest difference is rating: ConTutor at 4.2 against One's 2.3. ConTutor also leads on review sentiment (50% vs 14%) and in-app purchases (none vs 15). One's advantage is ratings volume (181 vs 5). On price, ads, device support and iOS requirement 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. ConTutor asks for nothing beyond the download.
ConTutor holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: One has 181 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 14% of One's written reviews are positive against 50% of ConTutor's.
One ships an update monthly, ConTutor every 2 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.
| Parameter | One | ConTutor |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (181 ratings) | 4.2 (5 ratings) — better |
| Positive reviews | 13.8% of reviews | 50.0% of reviews — better |
| Number of ratings | 181 — better | 5 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.5 | 15.0 — better |
| Further details — not scored | ||
| Size | 219 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Hangzhou zhidou Technology Co., Ltd. | Shenzhen Audiovisual Future Technology Co., Ltd |
Customer experience
One
ConTutor
Bugs and 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
ConTutor
Not enough reviews yet to summarise bugs or requests.
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
ConTutor
No in-app purchases









