Migaku vs Teacher AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Migaku
This app helps you learn languages by making content interactive. Click words in subtitles or text to get definitions, create flashcards, and personalize study sessions. It focuses on high-frequency words for efficient learning.
- Interactive subtitles for YouTube
- One-click media-rich flashcard creation
- Personalized study sessions
- Data-driven courses for beginners
- Word frequency-based vocabulary learning
- AI sentence breakdown and explanations
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Learning languages is actually pretty simple: if you consume content you enjoy, and you understand that content, you will make progress. Period. Migaku (and its Chrome browser extension) enables you to do that: 1. Our courses take you from zero to 80% comprehension in ~6 months (10 cards/day) 2. We make text interactive: click words in your phone's YouTube subtitles to see what they mean 3. We let you make media-rich flashcards out of those words with one click 4. We make personalized study sessions out of the flashcards you create 5. Repeat! Whether you're learning Japanese, Mandarin, Korean, Spanish, Italian, German, Cantonese, Portuguese, English, French or Vietnamese, Migaku equips you with the tools you need to make real progress. Migaku requires a paid subscription to access its courses, features, and AI tools. Migaku – AI Language Learning Tool ■ How languages are really learned: If you want to watch movies in other languages, then you need to learn languages with movies. If you want to read books in other languages, then you need to learn languages by reading. As you spend more time doing the things you enjoy doing in the language you're learning, you'll build the unique skills you need to more easily do those things. Unfortunately, it's difficult to read books and watch movies in another language as a beginner. And that's where Migaku comes in ■ Data-driven courses for beginners The problem with most apps and textbooks is that they teach you what someone else thinks language learners need to know, and those things may not reflect what you actually need to learn to do the things that are important to you. This matters because not all words are used equally often: while a college-educated native speaker knows ~30,000 words, you only need to know ~1,500 words to recognize 80% of the words in modern media. Our flashcard-based courses teach you these ~1,500 words—the ones that are useful to everyone, no matter their goals—plus a few hundred basic grammar points. What makes our courses special is that every "next" flashcard contains only one new word, making Migaku's learning curve super smooth. You're always learning something new, but never overwhelmed. It's a fluent language learning approach. Migaku courses are currently available for Japanese, Mandarin, and Korean. ■ Turn subtitles and text into interactive language learning opportunities Migaku makes texts interactive: just click on words to see what they mean. You can also hear audio recordings from native speakers, reference images of the term, check example sentences, get an AI explanation of what the word means in context, have AI break sentences down for you word-by-word, or see a translation of the sentence that your word appears in. Basically, Migaku lets you consume content in another language as if you knew as many words as a native speaker. Our mobile app supports YouTube, manually pasted content, and physical content like books or street signs. Our Chrome extension supports web pages and several popular streaming websites. ■ Create custom study cards or import language flashcards Find a useful looking word while consuming content? Turn it into a high-quality flashcard with one button, and Migaku's spaced repetition language practice algorithm will create personalized study sessions for you. You'll be nudged to review these flashcards periodically, ensuring you remember them. Decks designed for the Anki flashcard app can be converted for use with Migaku, too. ■ Study anywhere, even offline Migaku's courses and any flashcards you make are available offline and automatically sync between all of your devices. ■ Learn multiple languages at once A single Migaku subscription gives you access to all of Migaku's languages and lets you use all of Migaku's features and AI language learning tools as much as you want. - - - Immerse → enjoy → improve
Teacher AI
This app focuses on speaking practice for language learners, moving beyond traditional exercises to foster confidence in real conversations. It utilizes AI tutors for natural dialogue and tracks activated words to measure fluency growth.
- Speaking-first language learning
- AI-powered natural conversations
- Stress-free practice environment
- Active word activation tracking
- Daily speaking habit building
- Multi-language support
- Progress tracking for fluency
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Designed to speak a language, not just study it! Most language apps focus on exercises, grammar rules, and tapping answers. Teacher AI is different. It was designed together with some of the world’s best language learners and creators to solve the hardest part of language learning: Speaking confidently in real conversations! Built with top language creators & polyglots Teacher AI isn’t a generic language app. It’s shaped by people who have: - Learned dozens of languages to fluency - Built large audiences teaching languages online - Spoken their target languages in the real world The idea: Fluency comes from activating words by speaking, not from doing more exercises. Speaking-first, not exercise-first With Teacher AI: - You don’t just recognize words --> you use them - You don’t fill in blanks --> you talk - You don’t wait until you’re “ready” --> you start speaking now Every session is designed to turn passive knowledge into active language skills through speaking. Natural conversations that actually feel real Teacher AI’s AI tutors are built for natural, flowing conversations. - Speak freely, not in scripted drills - Respond naturally, like in real life - Practice at your own pace, without pressure Many learners say conversations in Teacher AI feel more natural than in any other language app. And because it’s stress-free, you speak more. Which is what actually builds fluency. Activate words, track real progress Teacher AI tracks what truly matters for speaking: - Words you’ve actively spoken - Daily and weekly speaking progress - Streaks that reinforce real habits - You can literally see your fluency grow as your activated word count increases. Build a daily speaking habit Consistency beats motivation. Teacher AI helps you: - Speak a little every day - Build confidence gradually - Turn speaking into a natural habit Many learners join the Speak Every Day Challenge to stay accountable and motivated. Practice speaking multiple languages Practice real conversations in languages like: - Spanish, French, German, Italian, Portuguese, English, Chinese, Japanese, Korean, Indonesian, Dutch and 20 more languages. Whether you’re learning for travel, work, or personal growth, Teacher AI helps you start speaking faster. Why Teacher AI is different - Designed with top language learners - Speaking-first approach - Natural, human-like conversations - Stress-free practice environment - Real progress tracking through spoken words If other apps helped you understand a language but not speak it, Teacher AI is for you. Start speaking today Download Teacher AI and experience stress-free, natural language speaking practice with AI tutors every day. Speak more. Activate words. Become fluent. Subscription Information Teacher AI offers auto-renewable subscriptions (monthly, 6-month, and annual) to unlock full access. Pricing is displayed at sign-up. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID Account Settings. Privacy Policy: https://yourteacher.ai/privacy-policy/ Terms Of Use: https://yourteacher.ai/terms-of-use/
Screenshots
Verdict
The clearest difference is monetization model: Migaku at free with in-app purchases against Teacher AI's subscription. Migaku also leads on review sentiment (73% vs 46%). On price, rating, ratings volume and update cadence 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. Migaku sells 9 in-app purchases, starting at $14.00 per month and Teacher AI sells 9 in-app purchases, starting at $24.99 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 — 4.4 for Migaku against 4.3 for Teacher AI. Both are backed by a comparable volume of ratings — 378 and 269 respectively. Written reviews are what separate them: 73% of Migaku's written reviews are positive against 46% of Teacher AI's.
Migaku ships an update weekly, Teacher AI fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Migaku | Teacher AI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (378 ratings) — better | 4.3 (269 ratings) |
| Positive reviews | 73.0% of reviews — better | 45.8% of reviews |
| Number of ratings | 378 — better | 269 |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 | 16.4 |
| Further details — not scored | ||
| Size | 1.9 GB | 184 MB |
| Age rating | 17+ | 17+ |
| Developer | Migaku Inc. | Teacher AI |
Customer experience
Migaku
Teacher AI
User reviews
Migaku
From 378 App Store ratingsWhat we love
- 🚀 Effective and convenient language learning
- 👍 Intuitive and visually appealing interface
- 🎓 Comprehensive courses and lessons
- 💡 Seamless integration with streaming platforms
- 🗣️ Helpful pronunciation and pitch accent features
Room to improve
- 🐛 Occasional crashes and stability issues
- 🔒 Lack of free trial or free plan options
- 💰 Expensive subscription model
- 🤖 Inconsistent performance of AI-powered features
- 🔌 High storage and battery consumption on mobile
Teacher AI
From 269 App Store ratingsWhat we love
- 🗣️ Realistic conversation practice
- 💡 Real-time correction and feedback
- 🌍 Supports multiple languages
- 🎧 Natural-sounding voices
- 🚶 Hands-free mode for convenience
Room to improve
- 💸 Expensive subscription cost
- ❓ Confusing for beginners
- 🐛 Frequent bugs and glitches
- ⏳ Long response loading times
- 🚫 Lack of clear instructions
Bugs and requests
Migaku
Reported bugs
3 issues- Unable to create new accounts in the app
- Broken kanji course with empty cards
- Inconsistent behavior when switching between apps
Requested features
4 requests- Offline mode for learning on the go
- Expanded support for more languages
- Better integration with Anki and other SRS apps
- More customization options for flashcards and reviews
Teacher AI
Reported bugs
26 issues- App logs out after a few weeks
- Password reset link not received
- App glitches and spins, becoming unusable
- Low volume for some voices
- App crashes or freezes
Show 21 moreShow fewer
- AI response loading indefinitely
- Microphone not working correctly
- Settings deleted or unchangeable after updates
- AI cuts off user mid-sentence
- AI asks the same questions repeatedly
- Subscription issues (charged after cancellation, asked to pay again)
- App switches languages unexpectedly
- Error messages when sending AI messages
- AI doesn't understand basic phrases
- AI responds in target language when user speaks English
- Loading screen persists for minutes
- Gender of AI interlocutor changes mid-conversation
- Invoices sound pleasant but app is buggy
- Last update made the app unusable
- Dictionary box remains empty
- Stuck on loading response, requires app restart
- Login issues after free trial or payment
- Problems using the microphone from browser
- Pinyin display for Chinese characters no longer works
- AI mishears or misunderstands speech frequently
- App errors out before processing speech
Requested features
15 requests- Add Haitian Creole language
- Option to turn off AI ending every response with a question
- Grammar-focused chat sessions
- More variety and creativity in topic suggestions
- Ability to store user interactions on a personal server
Show 10 moreShow fewer
- Option to hide text to focus on listening
- Improve copy-paste functionality for checking responses
- Add a 'translate' button on the user's side of the conversation
- Option to correct the AI when it mishears
- Display Pinyin alongside Chinese characters (currently not working)
- Allow users to correct the AI when it mishears
- Data storage for user interactions and vocabulary tracking
- More intuitive UI for beginners
- FAQ or documentation for app usage
- Direct tech support channels (chat/voice)
In-app purchases
Migaku
- Migaku Standard2 variants$14.001 Month
- Migaku Standard7 Days trial$14.001 Month
- Early Access$21.001 Month
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- Migaku Standard$136.991 Year
- Migaku Standard7 Days trial$136.991 Year
- Early Access$179.991 Year
- Lifetime$289.00
- Lifetime$344.99
- Lifetime$359.00
Teacher AI
- Monthly $25.003 Days trial$24.991 Month
- Teacher AI - 1 month3 Days trial$24.991 Month
- Teacher AI - 1 month$24.991 Month
Show 6 moreShow fewer
- Teacher AI - 1 month3 Days trial$29.001 Month
- Teacher AI - 6 months7 Days trial$106.996 Months
- Teacher AI - 6 months$106.996 Months
- Teacher AI - 6 months7 Days trial$119.006 Months
- Teacher AI - 1 year7 Days trial$146.991 Year
- Teacher AI - 1 year7 Days trial$179.001 Year









