Turn the Japanese podcasts and YouTube videos you already enjoy into lessons you actually understand — tap any word, ask the AI, and never lose your place.
Wakatta turns the real Japanese podcasts and YouTube videos you'd enjoy anyway into lessons you can actually understand.
Press play and follow a live transcript that lights up word by word as it's spoken. Tap any word you don't know for its reading, meaning, and part of speech — without leaving the audio. When a whole sentence won't click, tap Explain and an AI sensei breaks down the grammar in plain language.
Lost the thread but don't want to stop? One tap marks the last ten seconds — eyes-free — and it's waiting for you afterward, already explained. The words and moments you save become spaced-repetition flashcards, replayed with the exact sentence and audio you first heard.
WHY WAKATTA
• Real, native audio and video — not textbook dialogues
• 170+ hand-picked Japanese YouTube channels, plus the open podcast world
• Instant word lookup: reading, meaning, and part of speech in one tap
• AI grammar explanations for any sentence, in your language
• "I got lost" — mark a confusing moment hands-free and review it later
• Spaced-repetition review with the original audio or video
• Furigana and romaji toggles, karaoke-style highlighting
• Follow shows and channels, and build your own library
It's the immersion you'd do anyway, just made comprehensible. Start free.
I found that this app is perfect for “shadowing” in listening practice. With daily podcast review I already feel more comfortable with slightly faster Japanese. Can’t wait to see what other features get released!
Developer Response
ありがとうございます! 🙏 Shadowing with podcasts and YouTube videos is exactly what we hoped Wakatta would unlock — so glad faster Japanese is starting to click. More features coming soon. Keep it up! 🎧
YouTube channels now load reliably the first time you open them, and channel artwork looks cleaner throughout the app.
Plus a few visual fixes and performance improvements.
Version 1.0.15
The developer, Mariano Matayoshi, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Mariano Matayoshi
Size
11.6 MB
Category
Education
Compatibility
Requires iOS 18.0 or later.
iPhone Requires iOS 18.0 or later.
iPad Requires iPadOS 18.0 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.