MDict AD vs OpenMDict
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MDict AD
This is a dictionary application that supports multiple languages and offers fast lookups. It allows users to download various dictionary data packs and features pronunciation support, favorites, and search history.
- Fast lookup and loading speed
- Support for rich text content
- Pronunciation support
- Favorites and search history
- In-page search
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This is the adware version of MDict. 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
OpenMDict
This free, open-source dictionary reader allows you to view definitions from multiple dictionaries simultaneously. It offers pop-up lookup from any app and syncs your dictionaries, bookmarks, and history across devices via iCloud. Includes over 65 curated dictionaries to get you started.
- Multiple layout modes (Columns, Grid, List)
- Pop-up lookup via Action Extension
- Jump search within definitions
- iCloud sync for dictionaries and history
- Import unlimited dictionaries and create groups
- Includes 65+ curated open-source dictionaries
- Dark mode enhancements with adjustable brightness
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OpenMDict is a free, open-source MDict (.mdx/.mdd) dictionary reader for iPhone and iPad. ► THREE LAYOUT MODES & MULTI-WINDOW ON iPadOS - View definitions from multiple dictionaries simultaneously in Columns, Grid, or List layout — compare and cross-reference at a glance. - Desktop-class productivity with multiple windows and 30+ keyboard shortcuts. ► POP-UP LOOKUP & JUMP SEARCH - Look up words from any app via the Action Extension pop-up. - Keep jump-searching unfamiliar terms within definitions until every word is clear. ► iCLOUD SYNC & UNLIMITED GROUPS - Dictionaries, bookmarks, history, and lookup counts sync across all your devices. - Import unlimited dictionaries and create unlimited groups — no subscriptions, no ads, no paid tiers. ► PRESET DICTIONARIES INCLUDED & DARK MODE ENHANCEMENTS - Choose from 64 curated open-source dictionaries (WordNet, JMdict, CC-CEDICT, and more) — download and start using them right away. - Enhance third-party dictionaries' readability in dark mode, with 7 levels of adjustable brightness per dictionary. ► AI COACH & VOCABULARY GAMES - Turn the English words you bookmark into four quick games, generated on your device by Apple Intelligence, with definitions from your own dictionaries. - Swipe to sort synonyms, antonyms, and look-alikes. - Spot the impostor words hiding among a word's true relatives. - Settle a daytime-TV-style paternity dispute: is this word really in the family? - Answer a game-show survey: name the words that share a category. - Requires iOS 26 or later and a supported device with Apple Intelligence turned on and set to a language it supports. ► MORE FEATURES • Full MDict format support: V1 (LZO), V2 (zlib), MDD resources, obfuscated dictionaries • Lemma-aware search — finds base forms and inflected variants automatically • Siri Shortcuts, Spotlight search, Quick Actions, Share Extension, Drag & Drop • Available in 13 languages: English, 简体中文, 繁體中文, 日本語, 한국어, Español, Deutsch, Français, Português (BR), Русский, Українська, العربية, हिन्दी
Screenshots
Verdict
The clearest difference is rating: MDict AD at 5.0 against OpenMDict's 4.5. OpenMDict's advantage is ads (none vs shown) and update cadence (fortnightly vs every 12 months). On price, in-app purchases, device support 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. Neither carries in-app purchases, so what you see is what you pay.
MDict AD holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 65% of MDict AD's written reviews are positive against 75% of OpenMDict's, so the app with the better star average is not the one people write more warmly about.
MDict AD ships an update every 12 months, OpenMDict fortnightly. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.
| Parameter | MDict AD | OpenMDict |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.5 (4 ratings) |
| Positive reviews | 64.9% of reviews | 75.0% of reviews — better |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 34 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | 文伟 张 | Han Yin |
Customer experience
MDict AD
OpenMDict
In-app purchases
MDict AD
No in-app purchases
OpenMDict
No in-app purchases
