MDict vs iKnow Birds PRO
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
iKnow Birds PRO
Identify North American birds with a comprehensive field guide. Features detailed species information, professional images, and bird calls. Connect with experts for identification help and track your sightings.
- Comprehensive bird species library
- High-quality images and bird calls
- Online species consultation with experts
- Sighting tracking with GPS and photos
- Species training quiz game
- Identification by appearance, habitat, and order
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iKnow Birds PRO is the ultimate FIELD GUIDE to BIRDS OF NORTH AMERICA (United States, Canada, and Mexico)—all in the palm of your hand. Finally, you have the option to identify species without the help of a heavy book. You get a comprehensive library full of facts, figures, and images. Read fascinating information and learn facts about birds; browse professional images; listen to spectacular calls and songs. Find inspiration and experience nature in a whole new way. Apps and books help you figure out which bird it is, but you're still unsure? You now have the best chance to correctly determine the right species with the ONLINE SPECIES CONSULTATION. Enthusiasts and ornithologists from around the world will help identify the species. Did you spot a bird or capture a great photo? With the SIGHTINGS FUNCTION you can organize your discoveries on the road or at home! For each sighting, you can store comprehensive information, e.g. photo, time, GPS position and location. You want to learn to identify birds the easy way?! The new SPECIES TRAINING in the trivia game will help you reach your goal much faster. You can build your questions around the features you want to focus on. SUBSCRIPTION REQUIRED A subscription, purchased in the app, is required to use this app. All content and features in this description are only available with an active subscription. Price, length, and auto-renewal are shown in the app before you subscribe. CONTENT * 997 bird species - 3200 images * Species include the US, Canada and Mexico * 550 calls and songs offline and thousands online * Description of the species * Bird names in 4 languages * Scientific identification * Online Species Consultation * Capture and share sightings * Quiz game BIRD IDENTIFICATION BY * APPEARANCE - Size, feathering, beak type, etc. * RANGE AND HABITAT - Cities, forests, waters, mountains, etc. * ORDER - Owls, herons, eagles, etc. * MIGRATION - Sedentary, short, medium, long NATURE MOBILE on YouTube: http://www.youtube.com/naturemobile ABOUT NATURE MOBILE The mission of NATURE MOBILE is to present exciting topics from nature and other areas to a wide audience of interested people, enthusiasts, and experts in an attractive way. You are an author or photographer, you have fascinating ideas or content, please contact us at support@naturemobile.org. CHECK OUT MORE APPS BY NATURE MOBILE Privacy Policy: https://www.naturemobile.org/pages/privacy-policy-apps/ Terms of Use: https://www.naturemobile.org/pages/terms-of-service/
Screenshots
Verdict
The clearest difference is in-app purchases: MDict at none against iKnow Birds PRO's 2. MDict also leads on review sentiment (75% vs 49%) and device support (4 vs 2). On price, rating, ratings volume and update cadence 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. iKnow Birds PRO sells 2 in-app purchases, starting at $1.99 per month. MDict asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.1 for MDict against 4.0 for iKnow Birds PRO. Both are backed by a comparable volume of ratings — 32 and 33 respectively. Written reviews are what separate them: 75% of MDict's written reviews are positive against 49% of iKnow Birds PRO's.
MDict ships an update every 3 months, iKnow Birds PRO every 2 months. The most recent releases landed on November 1, 2026 and October 22, 2026 respectively.
| Parameter | MDict | iKnow Birds PRO |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (32 ratings) — better | 4.0 (33 ratings) |
| Positive reviews | 75.0% of reviews — better | 48.7% of reviews |
| Number of ratings | 32 | 33 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 27 MB | 456 MB |
| Age rating | 4+ | 4+ |
| Developer | 文伟 张 | NATURE MOBILE |
Customer experience
MDict
iKnow Birds PRO
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
Show 29 moreShow fewer
- 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
iKnow Birds PRO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MDict
No in-app purchases
iKnow Birds PRO
- iKnow Birds PRO - Monthly$1.991 Month
- iKnow Birds PRO - Yearly7 Days trial$5.991 Year





