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Corodomo vs Speak: video shadowing or an AI conversation tutor?

By Official AppDuo editorial team · Updated

Corodomo logoCorodomo8.5/10Freemium · ₫179,000/moSpeak logoSpeak6.8/10Free trial · $17.99/mo

Quick verdict

Both offer speaking practice with AI feedback, but they take different routes: one has you imitate real speakers from video, the other teaches phrases and has you use them in conversation straight away.

Corodomo: suits learners who want guided shadowing with word-level scoring, plus listening, reading and writing practice on the same video material. It has a Free plan with a monthly allowance, VND list prices and a policy that names each AI data processor.

Speak: suits learners who want daily conversational practice with Speak Tutor, and English speakers learning Spanish, French, Korean or Italian. It has far more user ratings, but its trial needs a card, fees are generally non-refundable and audio may be used to train AI.

Head-to-head

Corodomo leads on 4, Speak on 3, 3 even

FeatureCorodomoSpeak
Core speaking method[5],[6],[13]Video shadowing: listen to the model speaker, overlap-read, shadow without text, then record and get scored. 1:1 AI Coaching assigns short tasks by goal, level and schedule.Three steps: learn the phrases native speakers use, practise until they feel natural, then use them in conversation with Speak Tutor.
→ Corodomo fits if you want to copy real speakers' sound and rhythm from video; Speak fits if you want ready-to-use phrases for conversation.
Detail of pronunciation feedback[5],[6],[17],[19]Scores each sentence and word, flags mispronounced or skipped words and comments on accuracy, fluency and completeness. You can compare your recording with the model and retry weak sentences.Instant pronunciation feedback in lessons. Pronunciation Coach is for English learners only, and frequent-mistake targeting is Premium Plus only.
→ If you want to know exactly which words to fix, Corodomo documents that loop in more detail. Neither has independent evidence of how accurate its AI scoring is.
Conversation with AI[7],[11],[13],[17]CoroAI runs situational or video-based conversations such as ordering food, workplace talk, interviews, presentations and Japanese kaiwa. It reached iOS in version 1.0.33 (12 Jul 2026).Conversation with Speak Tutor is the core of the method. Premium caps Speak Tutor personalised lessons per day; Premium Plus removes the cap.
→ If quick replies in conversation are your main goal, Speak is built around exactly that; in Corodomo, CoroAI is one recent mode alongside shadowing.
Languages you can learn[8],[9],[10],[13],[19]Product pages cover English (with IPA), Japanese (furigana, kaiwa, JLPT practice) and Chinese (HSK practice). The interface comes in 11 languages.English speakers can learn Spanish, French, Korean, Japanese, Italian and Simplified Chinese; there is also English practice. The interface comes in 11 languages.
→ Korean, Spanish, French and Italian learners get a documented course in Speak, aimed at English speakers. For Japanese, Corodomo adds kaiwa and JLPT practice.
Skills beyond speaking[1],[3],[10],[13]Bilingual subtitles, in-context lookup, dictation, translation, quizzes, flashcards and JLPT, HSK and TOEIC practice. Per the quota guide, lookup, dictation, translation, quizzes and flashcards do not use AI hours.Focused on speaking, with less reading and writing. Anyone needing grammar, vocabulary or exam preparation should add another tool.
→ Corodomo can cover listening, reading and writing on the same material; with Speak you will usually pair it with another app.
Free tier and trial[2],[3],[13],[16]Free plan: limited video access, up to 3 imported videos and 1 AI hour a month. No trial period is recorded.A 7-day trial with full features of the chosen plan; a payment card is required. The help center mentions a free membership but not its scope.
→ Corodomo's Free plan has a monthly allowance you can use before paying; with Speak, you are charged if you do not cancel within the 7 days.
Personal plan prices[2],[17],[19]Official VND prices (no USD list price recorded): Plus is 179,000 ₫/month or 1,392,000 ₫/year (116,000 ₫/month), or a one-time 2,990,000 ₫ lifetime payment; Pro is 399,000 ₫/month or 3,156,000 ₫/year (263,000 ₫/month), or a one-time 5,999,000 ₫ lifetime payment.Premium: $17.99/month or $83.99/year (about $7/month); Premium Plus: $39.99/month or $164.99/year (US App Store).
→ The prices are in different currencies and channels, so there is no like-for-like comparison. Only Corodomo lists a one-time lifetime option.
Refunds and cancellation[4],[15],[18]Web purchases are final; refunds only for duplicate charges, charges after cancellation, plans not activated within 7 days, a core paid feature down over 7 consecutive days through Corodomo's fault, or unauthorised transactions, requested within 30 days. App Store and Google Play purchases go through Apple or Google.Fees are non-refundable unless the law requires otherwise; Google Play and website purchases may be reviewed case by case, App Store refunds go through Apple, and EU users have a 14-day withdrawal right. Cancel at least 3 days before renewal.
→ Corodomo explicitly excludes refunds for a change of mind or a forgotten cancellation. Speak's fees are generally non-refundable, with case-by-case review for Google Play and website purchases and a 14-day withdrawal right in the EU; cancel at least 3 days before renewal.
Voice data[4],[14]The policy names each AI processor (Soniox, OpenAI, Google Gemini, Anthropic Claude) and the data each receives, asks for in-app consent first and restricts training use. No concrete retention period is given.Audio is used to improve voice input and train AI; the EU/UK/Swiss section says it is shared with OpenAI and Microsoft. Speak says it has sold or shared some data for targeted advertising; retention is only 'no longer than reasonably necessary'.
→ If you are wary of your voice training AI, Corodomo's published policy is stricter. This compares published policies, not security audits.
Track record and user ratings[11],[12],[19],[20]iOS app released 13 Nov 2025, Android 11 Feb 2026. 4.9/5 on the Vietnamese App Store (946 ratings) and 4.8/5 on Google Play Vietnam (531). AI Coaching arrived in iOS version 1.1.15 (8 Nov 2026).On the App Store since 22 Dec 2017. 4.8/5 on the US App Store (66,605 ratings) and 4.7/5 on Google Play (126K reviews), with 10M+ Google Play downloads.
→ Star ratings are similar (though from different store markets), but Speak's are based on far more reviews and a longer history; Corodomo's AI Coaching is very new.

Choose Corodomo if…

  • Learners who want guided shadowing: listen, overlap-read, record, then see which words went wrong and retry
  • Japanese learners who want furigana subtitles, kaiwa practice and JLPT tests
  • Learners who want listening, reading and writing practice on the same videos and want a Free plan before paying

Choose Speak if…

  • Learners who want daily conversation practice with an AI tutor, built on ready-to-use phrases
  • English speakers learning Spanish, French, Korean or Italian
  • Learners who want to try every feature for 7 days before paying and are fine adding a card

Two different routes to speaking

Corodomo builds on video: you hear a model speaker, read bilingual subtitles, overlap-read and then shadow without text. 1:1 AI Coaching packages these steps into short tasks matched to your goal, level and schedule, scores your recording and points to sentences worth retrying. CoroAI adds situational conversation, such as ordering food, interviews, workplace talk or Japanese kaiwa.

Speak works the other way round: learn phrases native speakers use, practise until they flow, then use them in conversation with Speak Tutor. In short, Corodomo suits imitating real speech and fixing it word by word; Speak suits building phrases you can use in conversation straight away. Both rely on AI rather than human teachers.

Languages and skill coverage

For English speakers, Speak teaches Spanish, French, Korean, Japanese, Italian and Simplified Chinese, and also offers English practice. Its homepage lists these courses for English speakers, and its Pronunciation Coach is for English learners only.

Corodomo's product pages cover English with IPA, Japanese with furigana, kaiwa and JLPT practice, and Chinese HSK practice with AI-graded writing. Beyond speaking it adds dictation, translation, quizzes, flashcards and TOEIC practice. Speak focuses on speaking with less reading and writing, so anyone who needs grammar or exam preparation will usually add another tool.

Cost, trial and refunds

Corodomo has a Free plan with limited video access, up to 3 imports and 1 AI hour a month. Plus costs 179,000 ₫/month or 1,392,000 ₫/year with 30 AI hours a month and AI Coaching; Pro costs 399,000 ₫/month with 100 AI hours. Speaking, detailed pronunciation scoring and subtitle generation share the AI allowance, so heavy users should plan for it.

Speak lists no prices on its homepage; on the US App Store, Premium is $17.99/month or $83.99/year and Premium Plus $39.99/month or $164.99/year. Premium caps Made for You at 3 lessons a day, and the personalised study plan is Premium Plus only. The 7-day trial needs a card. Corodomo gives no refund for a change of mind or a forgotten cancellation; Speak's fees are generally non-refundable unless the law requires otherwise, and you must cancel at least 3 days before renewal.

Where your voice recordings go

Every speaking app records you, so the data policy is worth reading before you choose. Corodomo names each AI processor (Soniox, OpenAI, Google Gemini, Anthropic Claude) and the data each receives, describes in-app consent before sending and restricts training use. It does not yet give a concrete retention period.

Speak's privacy notice allows audio to be used to improve voice input and train AI, and its EU/UK/Swiss section says audio is shared with OpenAI and Microsoft. Speak also says it has sold or shared identifiers and other data for targeted advertising. Microphone access can be withdrawn in device settings. This compares published policies, not security audits.

Frequently asked questions

If I only want to practise speaking, Corodomo or Speak?

It depends on how you want to practise. To imitate real speakers from video and see which words you got wrong, Corodomo fits better. To build daily conversational reflexes with ready-to-use phrases, Speak is built for that.

Which one can I use for free?

Corodomo's Free plan includes limited video access, up to 3 imports and 1 AI hour a month; lookup, dictation, translation, quizzes and flashcards do not use AI hours. Speak offers a 7-day full-feature trial that needs a card and charges you unless you cancel; the scope of its free membership is not documented.

Are AI Coaching and Speak Tutor human teachers?

No. Both give AI-generated feedback. If you need a person to review your work or talk with you live, look at other options as well.

Will my voice be used to train AI?

Speak's privacy notice allows audio to be used to train AI and shared with OpenAI and Microsoft. Corodomo names each AI processor, asks for in-app consent before sending and restricts training use. Neither gives a concrete retention period.

Sources

Numbers in the table refer to these sources, read on the dates shown.

  1. 1.Official homepage · Vendor-provided · Nov 10, 2026
  2. 2.Official pricing page · Vendor-provided · Nov 10, 2026
  3. 3.AI quota guide · Vendor-provided · Nov 10, 2026
  4. 4.Terms of Use, Privacy Policy & Refund Policy · Vendor-provided · Nov 10, 2026
  5. 5.Shadowing page (English UI) · Vendor-provided · Nov 10, 2026
  6. 6.AI Coaching page · Vendor-provided · Nov 10, 2026
  7. 7.CoroAI situational speaking · Vendor-provided · Nov 10, 2026
  8. 8.Japanese learning: furigana and sentence practice · Vendor-provided · Nov 10, 2026
  9. 9.English learning: IPA and pronunciation practice · Vendor-provided · Nov 10, 2026
  10. 10.HSK reading and AI-graded writing practice · Vendor-provided · Nov 10, 2026
  11. 11.App Store listing (Vietnam) · store · Nov 10, 2026
  12. 12.Google Play listing (Vietnam) · store · Nov 10, 2026
  13. 13.Official homepage · Vendor-provided · Nov 10, 2026
  14. 14.Official privacy notice · Vendor-provided · Nov 10, 2026
  15. 15.Official terms of service · Vendor-provided · Nov 10, 2026
  16. 16.Help center: free trial · Vendor-provided · Nov 10, 2026
  17. 17.Help center: Premium vs Premium Plus · Vendor-provided · Nov 10, 2026
  18. 18.Help center: refund policy · Vendor-provided · Nov 10, 2026
  19. 19.App Store listing (US) · store · Nov 10, 2026
  20. 20.Google Play listing · store · Nov 10, 2026

Prepared by the AppDuo Editorial Team from the sources cited in this article. AI assists with organising and cross-checking data; editorial responsibility remains with AppDuo.

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