Comparison

Corodomo vs OpenQuiz AI

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

Head to head
About

Corodomo

Transform videos into interactive language learning experiences. Practice listening, speaking, and pronunciation with AI feedback, and build conversational skills using bilingual subtitles and contextual word lookups. Supports six languages.

Highlights
  • Bilingual subtitles
  • AI speaking practice
  • Dictation exercises
  • Contextual word lookup
  • Shadowing practice
  • Progress tracking
Features
Read full description

Corodomo turns videos into language lessons with bilingual subtitles, shadowing, dictation and AI speaking practice. Explore topics from podcasts and everyday conversations to news, business and IT. Practise listening sentence by sentence, look up words and phrases in context, and work on pronunciation with AI feedback. Build conversation skills, prepare for interviews and practise everyday situations with CoroAI. Learn 6 languages: English, Japanese, Chinese, Korean, German and Thai.

About

OpenQuiz AI

Transform any text or image into interactive flashcards for language learning. Practice speaking with AI conversations that provide pronunciation and grammar feedback. Ideal for exam preparation and mastering over 50 languages.

Highlights
  • Photo and text to flashcard conversion
  • AI conversation practice with pronunciation feedback
  • Spaced repetition system (SRS) for memorization
  • Exam preparation modules (IELTS, TOEFL, HSK, etc.)
  • Grammar and sentence-building drills
  • Sync across multiple devices
Features
Read full description

Turn any photo, text or word list into flashcards, then actually use the words — in AI conversations with pronunciation feedback. OpenQuiz AI is the all-in-one vocabulary and speaking app for Spanish, French, Japanese, Korean, Chinese, English and 50+ languages. PREPARING FOR AN EXAM? • IELTS Speaking: practice Parts 1–3 with an AI examiner and get band-style feedback on fluency, vocabulary, grammar and pronunciation • TOEFL, TOEIC, SAT & GRE vocabulary: build your own sets from a photo of the book, or study sets shared by other learners • AP Spanish, AP French and other speaking exams: pick a theme, talk with the AI, get corrected sentence by sentence • HSK 1–6, JLPT N5–N1, TOPIK I–II: exam-tagged word sets and a review schedule that fits your test date HOW IT WORKS 1. CREATE — snap a photo of your textbook, paste text or type a list. AI extracts the words with definitions, examples, images and native audio. 2. MEMORIZE — flashcards, dictation, fill-in-the-blank, quizzes and games, all scheduled by spaced repetition (SRS) so you review right before you would forget. 3. SPEAK — start an AI Call on any topic. The AI works your new words into the conversation, scores your pronunciation, fixes your grammar, and a coach mode guides you phrase by phrase until you get it right. MORE • Reading passages with natural audio and tap-to-look-up on every word • Grammar and sentence-building drills • Courses and learning paths built by the OpenQuiz team • Home-screen widget with today's reviews • Sync across iPhone, iPad, Mac, web and the Chrome extension • Free to start, no credit card required Trusted by 120,000+ monthly learners. Premium is an auto-renewing subscription that unlocks unlimited AI conversations, lesson generation and advanced feedback. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Settings › Apple ID › Subscriptions. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://openquiz.ai/en/privacy-policy.html

Screenshots

Corodomo4 screens
OpenQuiz AI4 screens

Verdict

The call

Corodomo and OpenQuiz AI both sit at 4.8 stars, but that hides the real split: 88% of Corodomo's written reviews are positive against 44% of OpenQuiz AI's. Corodomo also leads on ads (none vs shown). OpenQuiz AI's advantage is update cadence (every 3 days vs weekly) and ratings volume (98 vs 19). On price, rating, in-app purchases and monetization model 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. Corodomo sells 3 in-app purchases, starting at $6.99 per month and OpenQuiz AI sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Corodomo against 4.7 for OpenQuiz AI. That said, the two scores are not equally well evidenced: OpenQuiz AI has 98 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 88% of Corodomo's written reviews are positive against 44% of OpenQuiz AI's.

UpkeepUpdate frequency

Corodomo ships an update weekly, OpenQuiz AI every 3 days. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.

Scorecard4 real differences · 6 level
Corodomo versus OpenQuiz AI: the parameters behind the verdict, then further details
ParameterCorodomoOpenQuiz AI
PriceFreeFree
Rating4.8 (19 ratings) — better4.7 (98 ratings)
Positive reviews88.2% of reviews — better44.4% of reviews
Number of ratings1998 — better
Update frequencyWeeklyEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size60 MB41 MB
Age rating4+12+
DeveloperTran VietOPENQUIZ COMPANY LIMITED

Customer experience

Corodomo

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews34 reviews
Positive88.2%
Neutral5.9%
Negative5.9%

OpenQuiz AI

All ratings95 ratings
Positive91.6%
Neutral6.3%
Negative2.1%
Written reviews9 reviews
Positive44.4%
Neutral33.3%
Negative22.2%

In-app purchases

3 purchases

Corodomo

Subscriptions2
  • Gói tháng$6.991 Month
  • Gói tháng$55.001 Year
One-time1
  • Vĩnh viễn$109.00
3 purchases

OpenQuiz AI

Subscriptions3
  • OpenQuiz Premium$9.991 Month
  • OpenQuiz Premium$19.993 Months
  • OpenQuiz Premium7 Days trial$39.991 Year

Questions

Is Corodomo free?
Corodomo is free to download, with in-app purchases available.
Is OpenQuiz AI free?
OpenQuiz AI is free to download, with in-app purchases available.
Which has better reviews, Corodomo or OpenQuiz AI?
Corodomo is rated higher. Corodomo averages 4.8 out of 5 from 19 ratings, while OpenQuiz AI averages 4.7 from 98 ratings.
Do Corodomo or OpenQuiz AI have ads?
OpenQuiz AI shows ads; Corodomo does not.
Which is updated more often, Corodomo or OpenQuiz AI?
Corodomo ships an update weekly, and OpenQuiz AI every 3 days. Most recently, Corodomo was updated on November 11, 2026 and OpenQuiz AI on November 9, 2026.

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