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, create unlimited groups, no subscriptions, no ads, no paid tiers. ► PRESET DICTS INCLUDED & DARK ENHANCEMENTS - Choose from 65 curated open-source dictionaries (WordNet, JMdict, CC-CEDICT, and more) — download and start using immediately. - Enhance third-party dictionaries' readability in dark mode, with 7 levels of adjustable brightness per dictionary. 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 • 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
MDict AD and OpenMDict both sit at 5.0 stars, but that hides the real split: 100% of OpenMDict's written reviews are positive against 65% of MDict AD's. OpenMDict also leads on ads (none vs shown) and update cadence (every 10 days vs every 12 months). On price, rating, ratings volume and in-app purchases 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.
On the App Store both sit at effectively the same score — 5.0 for MDict AD against 5.0 for OpenMDict. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 65% of MDict AD's written reviews are positive against 100% of OpenMDict's.
MDict AD ships an update every 12 months, OpenMDict every 10 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.
| Parameter | MDict AD | OpenMDict |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 64.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 12 months | Every 10 days — 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 | 83 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









