Master Chinese. Your way.

Dictionary, flashcards, tone drills, grammar, and a text reader that turns anything you find into a lesson. HSK 1 to HSK 9 and beyond. One app. One purchase. Everything included.

不可思议

坚持不懈

环境保护

传统文化

学习

朋友

时间

工作

人

大

水

山

Purpose-built for Chinese.

Every other app bolts Chinese onto a generic language engine. Longtang was designed from day one for characters, tones, and radicals. Nothing else.

WORD MAP

You've never seen your vocabulary like this.

Other apps give you a number. Longtang gives you a map. Seven concentric rings, one per HSK level, with every word positioned by topic. Food words cluster together. Time words cluster together. You don't scroll a list. You see the entire language laid out in front of you. Faint dots are words you haven't touched. Amber means in progress. Solid means locked in. Pinch to zoom from 10,700 words down to a single character. This is what knowing Chinese actually looks like.

TEXT READER

Any Chinese text. Yours in seconds.

Share a WeChat message, copy an article, paste homework from your tutor. Longtang segments every word instantly. Tap to look up. Tap again to save for review. The reader color-codes what you know, what you're learning, and what's new, then tells you your comprehension percentage and the text's HSK level. Save all new words in one tap. Every text you read is saved, so you can come back later and see exactly how much more you understand. This is what 'bring your own content' actually looks like.

Everything else you'd expect. And then some.

Tone drills for all 20 combinations.

Pair drills, sandhi rules (3-3, 一, 不), minimal pairs that target your weak spots, and a progress grid showing exactly which tone pairs you nail and which trip you up.

114,000-entry dictionary.

Full CC-CEDICT with stroke order diagrams baked in. Search by English, pinyin, simplified, or traditional. Results before you finish typing. One tap to save to review.

FSRS spaced repetition.

The open-source algorithm that beats SM-2 in peer-reviewed studies. Adjusts intervals per card based on your performance. You remember more, review less.

Grammar detection in context.

Paste any text and the reader spots 100+ grammar patterns automatically: 把 constructions, 是...的, 比 comparisons, with explanations and examples by HSK level.

9,500+ stroke order diagrams.

Animated color-coded strokes for every character. Radical structure, construction logic, and writing order. The difference between memorizing a shape and understanding it.

Six quiz modes.

CCharacter to definition. Definition to character. Listening. Handwriting trace. Smart mix. Random. Each one hits a different part of your memory.

HSK 1–9. All 10,700 words.

The full updated HSK 3.0 standard, organized and mapped from day one. No deck downloads. No community imports. Just open the app.

Printable study materials.

Character practice sheets with stroke guides. Vocabulary cheat sheets. Pocket flashcards. Radical reference posters. All generated as PDFs from your own word lists.

Custom vocabulary lists.

Words from this morning's article. Restaurant vocab for your trip. A word can live in multiple lists. Review by list or review everything at once.

One app. No subscriptions. Everything on-device.

People who take Chinese seriously use Longtang

I share articles from WeChat straight into Longtang and save all the new words in one tap. It replaced Anki, Pleco, and that tone app I could never remember the name of.

Sarah K.

The tone pair drills found my blind spot — I was confusing 2nd and 3rd tone on almost everything. Two weeks later my tutor noticed the difference.

Thomas R.

I printed character practice sheets for my weakest 20 characters and stuck them on the fridge. No other app does that.

Lena W.

I paste my homework into the reader and it tells me the HSK level, detects grammar patterns, and highlights words I don't know yet. It's like having a tutor look over my shoulder.

James T.

FAQ

Have more questions? Get in touch

Start today.
Stay fluent.

114,000-entry dictionary

FSRS spaced repetition

9,500 stroke diagrams

Visual word map

Six quiz modes

Text reader

HSK 1–9 built in

One-time purchase

Just 15 minutes a day