MDict vs MDX Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MDict
This open platform dictionary app supports multiple languages and allows users to download various pre-built dictionary data. It offers fast lookups, rich text content, pronunciation, search history, and in-page search capabilities.
- Multi-language support
- Downloadable dictionary data
- Fast lookup and loading
- Rich text content
- Pronunciation support
- Favorites and search history
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MDict is a dictionary that support multi-language. It dosen't bundle with dictionary data. But it's a open platform that you can download many pre-built dictionary datas by others. Key features include: 1. Very fast lookup speed and dictionary loading speed. You can switch dictionary instantly. 2. Support rich text formated content 3. Pronunciation support. Currently with English, French, Portuguese, Chinese, Japanese.(Chinese/Japanese pronunciation support are limited) 4. Favorites and Search history 5. Supports in page search
MDX Reader
This app allows you to build and manage your personal dictionary using MDX/MDD files. It offers powerful offline search, smart favorites, and customizable appearance for a personalized reference experience.
- Unlimited dictionary management
- Fast full-text search
- Smart favorites for saved words
- Customizable appearance
- Offline functionality
- Cross-dictionary search
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MDX Reader is a powerful offline dictionary reading application that supports MDX/MDD format dictionary files. Whether you're learning a language, doing academic research, or need quick reference, MDX Reader is your ideal choice. Core Features • Unlimited Dictionaries Add and manage multiple MDX dictionaries simultaneously, supporting parallel queries across dictionaries for comprehensive information retrieval. • Powerful Search Engine Lightning-fast full-text search with instant results. Supports fuzzy matching and comprehensive indexing. • Smart Favorites One-tap to save important words, organized by dictionary for easy review and management. • Custom Appearance Personalize font family, size, weight, line spacing, padding, and background color. Create your ideal reading experience. • Offline First All dictionary data and search functionality work completely offline. No internet connection required, protecting your privacy. • Cross-Dictionary Search Simultaneously search multiple dictionaries and instantly view definitions from different sources. • Search History Automatically record search history for quick access to previously viewed content. Supported Formats • MDX (MDict Dictionary) Mainstream dictionary format with wide compatibility • MDD (MDict Resource) Supports images, audio, and multimedia resources Premium Features Unlock all features with a one-time purchase: - Unlimited dictionary additions (free version limited to 1) - Unlimited daily searches (free version limited to 20) - Custom appearance settings - Background color selection - Advanced font settings Free Trial New users get a 7-day free trial of all premium features. Experience the full functionality before deciding to purchase. Privacy First - No data collection - No user tracking - No third-party analytics - All data stored locally on device - Complete offline functionality Perfect For - Language learners: Support for multiple language dictionaries - Academic researchers: Professional terminology dictionaries - Translators: Quick reference and terminology lookup - Students: Comprehensive learning resource - Knowledge workers: Personal knowledge base Easy to Use 1. Add Dictionary: Import your MDX/MDD dictionary files 2. Search Words: Enter search terms for instant results 3. Manage Favorites: Save important content for easy review Download MDX Reader now and start your knowledge exploration journey!
Screenshots
Verdict
The clearest difference is rating: MDX Reader at 5.0 against MDict's 4.1. MDX Reader also leads on update cadence (every 11 days vs every 3 months). MDict's advantage is in-app purchases (none vs 1) and ratings volume (32 vs 1). On price, ads and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MDX Reader sells 1 one-off in-app purchase. MDict asks for nothing beyond the download.
MDX Reader holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: MDict has 32 ratings behind it against 1, so its average is the more settled of the two.
MDict ships an update every 3 months, MDX Reader every 11 days. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.
| Parameter | MDict | MDX Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (32 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 32 — better | 1 |
| Update frequency | Every 3 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 文伟 张 | Yulei Duan |
Customer experience
MDict
MDX Reader
Bugs and requests
MDict
Reported bugs
34 issues- Appearance settings reset on macOS
- UI misalignment in appearance settings
- Full-text search missing on mobile
- Daylight mode not working at night
- Cannot add custom fonts to iOS version
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- App crashes frequently on Mac
- App crashes on launch (older reviews)
- Audio not working after iOS updates
- Clipboard not working in floating mode
- Search bar behavior requires back button
- Auto-lookup clipboard not working in floating window
- Group function invalid format on iPhone
- Sharing section not working
- MDict floating window blank when looking up words in Instapaper
- Cannot search from right sidebar on iPad
- Sound not working
- Sound not working after upgrading to new version on iOS 9.1
- Multi-dictionaries lookup not working
- Auto lookup clipboard not working in floating window
- Group function does not work on iPhone
- Sharing section not working
- MDict's pop out window is always blank and cannot provide any definition when looking up words in Instapaper
- Cannot search a word from right sidebar on iPad
- Sound not working
- Sound wasn't work after upgrading to new version on IOS 9.1
- Multi-dictionaries lookup cannot work
- Audio problems solved (older review, implies it was an issue)
- Cannot search clipboard content on iOS 5
- Dictionary sorting gets messed up after upgrades
- Shows 'pirated' status despite payment
- Clicking on dictionary name triggers unwanted search
- Russian Wikipedia search not recognizing Russian input
- Font corruption when loading some dictionaries
- App crashes when using notification bar shortcut
Requested features
22 requests- Full-text search on mobile
- Custom font support for dictionary entries
- Add fonts to iOS version
- Dark mode
- Add collection folders
Show 17 moreShow fewer
- Login and sync function
- Fix clipboard auto-lookup in floating window
- Fix search bar behavior
- Support more extensions (.BGL, .LD2)
- Improve Mac version shortcut functionality
- Add test function
- Add support for .mdd downloads on iPhone
- Add scroll bar
- Add dict shortcut button in main window
- Improve file reader support
- Add simplified/traditional Chinese conversion for search
- Allow full screen on iPhone
- Font selection memory
- Improve configuration for dictionary grouping backup
- Support for iPhone 6/6 Plus
- Allow scrolling down precedents near a keyword
- Multi-dictionary lookup convenience
MDX Reader
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MDict
No in-app purchases
MDX Reader
- MDX Premium (Lifetime)$3.99








