MDict vs OpenMDict

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 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