Mud Mobile
Write Korean Naturally.
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
MUD is an AI-powered Korean writing assistant designed to help non-native speakers write Korean more fluently and naturally.
MUD combines a smart keyboard with a companion app to support Korean writing in real time, whether you are studying, working, or communicating daily in Korean.
What MUD Does
AI-powered Writing Assistance
MUD uses AI to analyze Korean sentences and refine grammar, word choice, and sentence flow, helping your writing sound more natural.
System-wide Keyboard
With the MUD keyboard, you can receive writing assistance wherever you type, including messaging apps, browsers, and notes, without copying and pasting.
Companion App for Learning and Management
The app provides access to writing tools, account settings, and subscription management, making MUD easy to use and control.
Designed for Korean Learners
Built specifically for international students, professionals, and anyone learning Korean as a second language.
Privacy and Transparency
Your privacy is important to us.
• Keystrokes are not stored
• Text is processed only to provide writing assistance
• No background data collection
• Network access is required solely to enable AI-based features
We are committed to handling user data responsibly and transparently.
More details are available in our Privacy Policy.
Additional Information
• An internet connection is required for AI features
• Some advanced features may require a subscription
• Subscriptions can be managed or canceled through your Apple ID settings
Who MUD Is For
• International students learning Korean
• Professionals working in Korean environments
• Anyone who wants to write Korean more fluently and confidently
Write Korean with confidence.
Write Korean with MUD.
Terms of Use (EULA): https://ard-mud.com/terms
Privacy Policy: https://ard-mud.com/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The MUD keyboard is easier to use.
• Emoji keyboard: type emoji right from the keyboard. Your most-used emoji appear first.
• More accurate typing: letters stay in order when you type fast, and the key under your finger when you lift it is the one entered.
• Matches the iOS keyboard: the symbol pages and bottom-row keys now have the same layout as the standard keyboard.
• The return key turns gray when the text field is empty.
• Stability improvements
The developer, Mud Co., Ltd., 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- MUD Co., Ltd.
- Size
- 98.4 MB
- Category
- Productivity
- Compatibility
Requires iOS 15.6 or later.
- iPhone
Requires iOS 15.6 or later. - iPad
Requires iPadOS 15.6 or later. - iPod touch
Requires iOS 15.6 or later. - Mac
Requires macOS 12.5 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 4 more
- English, Japanese, Korean, Simplified Chinese, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Mud Pro Yearly $59.99
- MUD Pro Monthly $5.99
- Copyright
- © 2026 MUD Inc. All rights reserved.