LaternZona
Your dictionary, offline.
A new kind of dictionary, powered by an AI model that runs entirely on your iPhone, iPad, and Apple Silicon Mac. Pick same-language mode for pure English-English (or 日本語-日本語, 中文-中文 ⋯) definitions, or translation mode to bridge any pair of 9 supported languages. Either way, every example sentence is freshly generated for your context — not pulled from a 1998 textbook.
iPhone · iPad · Mac (Apple Silicon)
Built around you.
Most 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.
Examples Written for YOU
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AI-Generated, Not Static:
Every example is freshly generated by an on-device AI model — tap regenerate, get a new angle. -
Your Context, Your Examples:
Configure example style (everyday, academic, business) so the model writes sentences you can actually use tomorrow. -
Words and Phrases:
Look up single words or multi-word idioms, phrasal verbs, and slang — all in the same interface.
Privacy by Architecture
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No Backend, No Cloud:
We don't have your search history because nobody has your search history. There is no server. -
Works on Airplane Mode:
Download the model once. Cut the network entirely. The app keeps working — forever. -
No Accounts:
No sign-up, no email, no tracking SDKs. Open the app and search.
Save. Review. Master.
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Bookmark Vocabulary:
One tap saves the full entry — including the AI-generated examples that worked for you. -
Spaced-Repetition Flashcards:
Built-in review system that surfaces words right before you'd forget them. -
PDF Export:
Export your vocabulary list to a clean PDF — share with a tutor or print for offline study.
9 × 9 Languages, Any Direction
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Same-Language Dictionary:
English-English, 日本語-日本語, 中文-中文, etc. — pure monolingual definitions for advanced learners. -
Cross-Language Translation:
Look up a word in any of 9 input languages, get the answer in any of 9 output languages. 81 combinations total. -
Side-by-Side Examples:
In translation mode, every example sentence shows the original alongside its translation. -
Independent Axes:
UI language and AI output language are set separately — no forced bundling.
Supported Languages
See It in Action
Native iPad Layout
Universal app with a content-cap that keeps lines readable on the big screen — including full RTL support for Arabic and proper script rendering for Devanagari, Hiragana, and CJK.
Runs Natively on Apple Silicon Mac
One purchase, three devices. The same on-device AI model that powers LaternZona on iPhone and iPad runs natively on M-series Macs — same app, full window controls, the dictionary you keep open in a corner of your desk all day.
How It Works
The same architecture that makes the app private also makes it fast and resilient.
Download Once
On first launch, the app downloads an AI model sized to your device's RAM. After that, you never need a network connection again.
Search Instantly
Type a word or phrase. The model streams a structured response — definition, examples, pronunciation, etymology — directly to your screen.
Stay Private
Your query never leaves the device. There's no analytics SDK, no telemetry, no backend. Just you and a local model.