# LaternZona — Your AI dictionary, offline. > Your AI dictionary, offline. (iPhone/iPad app by Chih Jen Chuang.) - Source: https://appshunter.io/ios/app/laternzona/id6769418255 (this page in markdown: same URL + `.md`) - Developer: [Chih Jen Chuang](https://appshunter.io/developer/1824397171) - Category: Education - Price: $4.99 - Age rating: 4+ - Requires: iOS 17.0 · 26 MB - Languages: American English, Arabic, French (France), German (Germany), Hindi, Japanese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan) - Released: 2026-05-21 - Data updated: 2026-08-12 - User reviews in markdown: https://appshunter.io/ios/app/laternzona/id6769418255/reviews.md ## What is LaternZona? Learning what YOU want matters more than memorizing what a textbook gave everyone else. LaternZona is a new kind of English dictionary, powered by an AI model that runs entirely on your iPhone — no accounts, no cloud, no tracking. Look up any word or phrase, and instead of one frozen example sentence written in 1998, get fresh examples tuned to the way you actually use the language. WHY AI BEATS A STATIC DICTIONARY Traditional dictionaries treat every learner the same. A surgeon, a software engineer, and a high-schooler all read the same example sentence for "execute." LaternZona's AI generates examples on the fly — ask again, get a different angle, in a context that fits your life. Perfect accuracy matters less than relevance. The best example sentence is the one you can actually picture using tomorrow. FEATURES • AI-generated definitions, examples, and pronunciation for any English word or multi-word phrase (idioms, phrasal verbs, slang) • 100% on-device AI — powered by Google's Gemma model running locally. Works on airplane mode. Works on the subway. Works forever. • Two lookup modes, any direction — pure same-language dictionary (English-English, 日本語-日本語, 中文-中文, etc.) OR cross-language translation between any pair of the 9 supported languages: English, Traditional Chinese (繁體中文), Simplified Chinese (简体中文), Japanese (日本語), Spanish, French, German, Arabic (العربية), Hindi (हिन्दी). Set input and output languages independently — 9 × 9 = 81 combinations. • Bookmark & review — save words, run spaced-repetition flashcards, export your vocabulary list as PDF • Two-axis localization — set your UI language and AI output language independently • Auto language detection for input — type in any supported language, get an English-anchored explanation PRIVACY BY ARCHITECTURE, NOT BY PROMISE Most "AI" apps send every query to a server. LaternZona physically can't — there is no backend. After you download the model once, you can delete the cellular signal from your phone and the app keeps working. We don't have your search history because nobody has your search history. MADE FOR SERIOUS LEARNERS Whether you're prepping for IELTS, reading English literature, or just trying to nail a tricky phrasal verb at work, LaternZona meets you where you are. Ask the question your way. Get the answer in your language. Build vocabulary that sticks. Download once. Learn forever. Offline. ## Version history (last 5 releases) ### 1.5 — 2026-07-09 What's new in 1.5 • On Mac (Designed for iPad), LaternZona now recognises your already-downloaded model instead of showing “Downloading model” on every launch — it starts in seconds from the local cache. ### 1.4 — 2026-06-22 What's new in 1.4 • Your downloaded model now survives major iOS updates — the app no longer re-downloads gigabytes or gets stuck on the loading screen after you update iOS. • If a download is needed, you'll now see a clear "Downloading model" status with a Wi-Fi hint, instead of a silent spinner. • Tapping Lookup on a word that can't be found now still shows a back button to return to your previous entry. ### 1.2 — 2026-05-26 What's new in 1.2 • The search field and progress bar now stay pinned at the top — only the result scrolls, so long entries no longer push the input off-screen. • Spot an unfamiliar word inside an example sentence? Select it and tap Lookup to define it instantly — a back arrow returns you to the original entry. • Runs reliably on Apple silicon Macs — settings, onboarding, and model picker sheets now open as expected. • Misspelled or unrecognized inputs now route to a "did you mean" picker instead of a fabricated definition. • Output language stays consistent throughout each definition, so results no longer drift into English partway through. ### 1.1 — 2026-05-22 What's new in 1.1 • A slim progress bar under the search field now shows you how close your result is to being ready. • Words with only one meaning look tidier — no lone "1." in front of them. • The regenerate button waits until the current result has finished loading, so a stray tap won't start it over. ### 1.0 — 2026-05-21 No release notes. ## More apps by Chih Jen Chuang - [MetricFit](https://appshunter.io/ios/app/metricfit/id6748115747) - [AI PhotoSieve](https://appshunter.io/ios/app/ai-photosieve/id6751214446) - [MythExplorer](https://appshunter.io/ios/app/mythexplorer/id6757424040) All apps by Chih Jen Chuang: https://appshunter.io/developer/1824397171 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-12.*