Corodomo vs OpenQuiz AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Bilingual subtitles
- AI speaking practice
- Dictation exercises
- Contextual word lookup
- Shadowing practice
- Progress tracking
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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.
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.
- 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
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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
Verdict
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
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.
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.
Corodomo ships an update weekly, OpenQuiz AI every 3 days. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.
| Parameter | Corodomo | OpenQuiz AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (19 ratings) — better | 4.7 (98 ratings) |
| Positive reviews | 88.2% of reviews — better | 44.4% of reviews |
| Number of ratings | 19 | 98 — better |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 60 MB | 41 MB |
| Age rating | 4+ | 12+ |
| Developer | Tran Viet | OPENQUIZ COMPANY LIMITED |
Customer experience
Corodomo
OpenQuiz AI
In-app purchases
Corodomo
- Gói tháng$6.991 Month
- Gói tháng$55.001 Year
- Vĩnh viễn$109.00
OpenQuiz AI
- OpenQuiz Premium$9.991 Month
- OpenQuiz Premium$19.993 Months
- OpenQuiz Premium7 Days trial$39.991 Year







