OCAT is a sentence-centered language learning app. Simply enter what you want to say in your native language, and OCAT will show you a natural, idiomatic way to say it in the language you are learning. You can play the pronunciation, view pronunciation guides, save sentences, and build a personal phrase bank rooted in your own life.
Learning sentences beats memorizing words!
The name OCAT comes from the Japanese phrase "教えて (oshiete)," meaning "please teach me."
Collect sentences, train your ears, and practice shadowing:
【Learn sentences】 Want to know how to say something in another language? Enter it in your native language, and AI will quickly provide a natural expression.
【Save sentences】 When you find an expression you want to remember and use again, save it to one of your collections.
【Your personal phrase bank】 Collect sentences that are genuinely connected to your own life and build a spoken-language phrase bank that truly belongs to you.
【Loop playback and train your ears】 Play saved sentences repeatedly in the background so your ears become familiar with sentence patterns, pronunciation, and the feel of the language.
【Natural voices】 OCAT includes very natural-sounding reading voices that help you practice shadowing more effectively while developing good intonation.
【Shadowing and speaking practice】 Imitate each sentence's rhythm, intonation, and pronunciation to move beyond a foreign accent — train your ears to improve listening, and shadow to improve speaking.
Think back to what you just said, ask OCAT, save example sentences, play them repeatedly to train your ears, and then practice speaking through shadowing!
Build a phrase bank that truly belongs to you, and learn to speak naturally in everyday life, just as a child does!
AI assistance in OCAT is limited to language-learning use cases, such as creating natural example sentences, pronunciation practice, and review support.
Terms of Use: https://ocat.app/terms
Privacy Policy: https://ocat.app/privacy
Ratings & Reviews
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* Fixed an occasional glitch where the chat view would jump or messages would shift out of place when an AI reply finished very quickly or was short
* Improved the shadowing statistics heatmap levels to distinguish different amounts of practice more clearly
* The progress bar now stays visible during Shadowing, making your overall progress easier to notice
* Added an English accent option: when your native or learning language is English, choose American (default) or British
* AI phonetic transcriptions and English speech playback now follow the selected accent; British English uses a dedicated British voice
* You can now change the voice of a saved Japanese sentence from its long-press menu; available voices are shown with the current voice clearly selected
Version 9.6.2
The developer, Drakeet, Inc., 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
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Diagnostics
Privacy practices may vary based, for example, 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
Provider
Drakeet, Inc.
Size
149.7 MB
Category
Education
Compatibility
Requires iOS 14.0 or later.
iPhone Requires iOS 14.0 or later.
iPad Requires iPadOS 14.0 or later.
iPod touch Requires iOS 14.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.