Comparison

MDict AD vs OpenMDict

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Fast lookup and loading speed
  • Support for rich text content
  • Pronunciation support
  • Favorites and search history
  • In-page search
Features
Read full description

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

About

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.

Highlights
  • 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
Features
Read full description

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

MDict AD4 screens
OpenMDict4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
MDict AD versus OpenMDict: the parameters behind the verdict, then further details
ParameterMDict ADOpenMDict
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews64.9% of reviews100.0% of reviews — better
Number of ratings12 — better
Update frequencyEvery 12 monthsEvery 10 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size34 MB83 MB
Age rating4+4+
Developer文伟 张Han Yin

Customer experience

MDict AD

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews37 reviews
Positive64.9%
Neutral13.5%
Negative21.6%

OpenMDict

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

MDict AD

No in-app purchases

None

OpenMDict

No in-app purchases

Questions

Is MDict AD free?
MDict AD is free to download, with no in-app purchases.
Is OpenMDict free?
OpenMDict is free to download, with no in-app purchases.
Which has better reviews, MDict AD or OpenMDict?
MDict AD and OpenMDict are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do MDict AD or OpenMDict have ads?
MDict AD shows ads; OpenMDict does not.
Which is updated more often, MDict AD or OpenMDict?
MDict AD ships an update every 12 months, and OpenMDict every 10 days. Most recently, MDict AD was updated on October 5, 2026 and OpenMDict on October 3, 2026.

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