Fixu

Japanese Grammar & Tone Check

Only for iPhone

Free · In‑App Purchases

iPhone

Your Japanese keyboard with instant grammar and tone feedback - right as you type, in any app. Fixu is the Japanese keyboard that checks your grammar and tone before you send, so you can write with confidence in every conversation. Whether you're texting friends, emailing colleagues, or posting on social media, Fixu gives you real-time feedback right inside your keyboard. No switching apps. No copy-pasting into ChatGPT. Just you, writing in Japanese on your own. HOW IT WORKS Install Fixu as your keyboard and write in Japanese like normal. When you're ready, request feedback - Fixu analyzes your grammar and tone and surfaces corrections instantly. Accept a suggestion with one tap. FEATURES • Grammar corrections — catch mistakes before anyone else does • Tone feedback — know if your message sounds natural, too casual, or too formal • 12-key flick (12キー) and QWERTY Japanese input modes • Works in every app — Messages, Line, email, anything • Sign in once, use everywhere PREMIUM Unlock feedback requests with Fixu Premium. Available as a monthly or annual subscription. Fixu requires Full Access to provide keyboard functionality and feedback features. End User License Agreement https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, Justin Fernando, 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
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • 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
  • Justin Fernando
Size
  • 108.6 MB
Category
  • Education
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Justin Fernando
  • Privacy Policy

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