Comparison

One vs ConTutor

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Voice-to-text conversion
  • Multilingual translation
  • Speech synthesis
  • Supports over 100 languages
  • Effortless voice input
Read full description

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.

About

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.

Highlights
  • Real-time bilingual translation
  • Intelligent vocabulary notebook
  • AI scenario-based oral practice
  • Categorized word review
  • Speech identification and output
  • Confidence building exercises
Features
Read full description

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

One2 screens
ConTutor4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

One ships an update monthly, ConTutor every 2 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.

Scorecard6 real differences · 4 level
One versus ConTutor: the parameters behind the verdict, then further details
ParameterOneConTutor
PriceFreeFree
Rating2.3 (181 ratings)4.2 (5 ratings) — better
Positive reviews13.8% of reviews50.0% of reviews — better
Number of ratings181 — better5
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size219 MB23 MB
Age rating4+4+
DeveloperHangzhou zhidou Technology Co., Ltd.Shenzhen Audiovisual Future Technology Co., Ltd

Customer experience

One

All ratings181 ratings
Positive29.3%
Neutral7.2%
Negative63.5%
Written reviews94 reviews
Positive13.8%
Neutral6.4%
Negative79.8%

ConTutor

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

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

15 purchases

One

One-time15
  • 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
Show 12 more
  • 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
None

ConTutor

No in-app purchases

Questions

Is One free?
One is free to download, with in-app purchases available.
Is ConTutor free?
ConTutor is free to download, with no in-app purchases.
Which has better reviews, One or ConTutor?
ConTutor is rated higher. One averages 2.3 out of 5 from 181 ratings, while ConTutor averages 4.2 from 5 ratings.
Do One or ConTutor have ads?
Neither One nor ConTutor shows ads.
Which is updated more often, One or ConTutor?
One ships an update monthly, and ConTutor every 2 weeks. Most recently, One was updated on September 24, 2026 and ConTutor on September 19, 2026.

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