OCAT: My Japanese Sentences

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PEGI 3
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About this app

Learn Japanese & English Speaking with AI

OCAT is an app that helps you practice Japanese and foreign languages speaking through AI conversations. Easily obtain authentic sentences with phonetic annotations, on-demand playback, favorites, and enlarged display, quickly building your personalized daily speaking library.

Memorizing sentences is more effective than memorizing words!

"OCAT" originates from the Japanese word "おしえて (oshiete)," meaning "please teach me."

Key Features:

* Easy Input: Want to ask "How to say xxx in Japanese?" Just input in your native language, and AI will quickly respond with authentic sentences.
* Interactive Learning: Click to play pronunciation of AI-generated sentences and save them to custom folders.
* Enlarged Display: Sentences can be enlarged for display, serving as an instant translation tool during face-to-face communication.
* Japanese Phonetics: All Japanese sentences come with accurate hiragana annotations, eliminating unfamiliar word troubles.
* Personalized Favorites: Freely create and manage favorites folders, easily organizing and categorizing speaking sentences.
* Efficient Review: Favorites support background loop playback, with customizable intervals, speech speed, and optional translations, reinforcing learning anytime, anywhere.
* Scenario Review: One-click to view the original AI conversation context of favorite sentences, recreating the initial learning experience and enhancing memory.

Build your own sentence library and learn speaking naturally like a child in daily life!

Terms of Use: https://ocat.app/terms
Privacy Policy: https://ocat.app/privacy
Updated on
Oct 10, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

What’s new

* Added 'Manual Add to Favorites' feature in favorites list, allowing manual input of text content and breaking it down
* During playback, clicking on any item in the playlist will jump to that item and continue playing
* Support quick switching of 'Learning Language'
* Support GPT-5!
* Support marking favorite items as 'Mastered', available in the long-press menu
* Support playing the previous favorite item when pressing the 'Previous' button
* Added Sleep Countdown mode and Test mode in f...