Vietgo: Vietnamese Dictionary

Vietgo is a complete Vietnamese dictionary, course and reader that works entirely offline. No account, no ads, no subscription, no tracking. Install it once and it is all on your phone: 54,686 dictionary entries, 313 grammar points, 730 phrases, 20 graded stories: working in airplane mode, on a night bus, anywhere the signal drops.

Built for English speakers learning Vietnamese: travellers, people living in Vietnam, partners and families of Vietnamese speakers, and heritage learners.

A DICTIONARY THAT TEACHES
• 54,686 entries and 43,716 example sentences, all on your device
• Search in Vietnamese or English and type without the diacritics: "hoc sinh" finds "học sinh"
• Every entry gives the part of speech, classifier, Hán-Việt origin, dialect variants and word frequency
• Tap to hear it read by your phone's Vietnamese voice
• Paste any Vietnamese text: a message, a menu, an article and tap any word

NORTHERN AND SOUTHERN, SIDE BY SIDE
Most apps teach one variety of Vietnamese and never say which. Vietgo defaults to Northern (Hanoi) and shows the Southern (Saigon) form wherever it differs: separate IPA for both accents, north–south word pairs, and one setting that switches the pronunciation guides app-wide. The North holds all six tones apart; the South merges two of them, and the charts show both.

THE SIX TONES, PROPERLY TAUGHT
• Sounds & Tones: 90 items in 5 sections: the alphabet, the six tones, vowels, consonants and final sounds
• Chao contour charts draw each tone's shape, so you see the difference before you hear it
• 62 drill sets train the contrasts English speakers miss: ma, mà, má, mả, mã and mạ are six unrelated words

GRAMMAR IN PLAIN ENGLISH
• 313 grammar points across 6 decks: A1, A2, B1 and B2, plus spoken and formal Vietnamese
• 1,877 example sentences, every one tappable word by word
• Classifiers, pronouns, question particles, verbs that never conjugate: the parts that feel foreign

730 PHRASES FOR REAL SITUATIONS
• 28 topics: greetings, addressing people, numbers, time, food, the market, transport, directions, health, housing
• Work Vietnamese too: the office, email, job interviews, money
• Plus proverbs, idioms, slang and north–south pairs
• Favourite a phrase and it comes back in a test

READ REAL VIETNAMESE
• 20 graded stories, over 12,000 words, A1 to B2
• Tap any word for its dictionary entry without losing your place
• Every story is written for the app in natural Northern Vietnamese

FLASHCARDS THAT KNOW WHEN YOU FORGET
• Spaced repetition (SM-2) brings a card back just before it slips away
• Save a word or favourite a grammar point and it joins the queue
• Quick Quiz, Recent Mistakes and Critical Condition drill what you get wrong
• Custom tests: mix words and grammar, pick the lists and the count
• Multiple choice, fill in the blank, or straight recall

PROGRESS WORTH KEEPING
• XP, day streaks and belt ranks from white to black
• A 26-week activity heatmap of everything you study
• Word lists ready-made by CEFR level and topic, plus your own
• Dark mode, adjustable text size, optional study reminders

FREE, WITH NO CATCH
Vietgo is completely free. No premium tier, no paid unlock, no advertising, nothing to subscribe to. Every entry, story, grammar point, phrase and test is there from first launch.

PRIVATE BY DESIGN
Vietgo makes no network requests at all. No analytics, no crash reporting, no account, no cloud sync: nothing you study can leave your phone. Your lists and progress go with the app if you uninstall it.

Dictionary data: English Wiktionary via kaikki.org, the OVDP Việt-Anh dictionary, Tatoeba, frequency ranks from the Leipzig Corpora Collection. Stories, grammar, phrases and Sounds & Tones are written for Vietgo. Sources and licences in Settings > About.

Privacy Policy: https://ruminskilabs.com/vietgo/privacy
Terms: https://ruminskilabs.com/vietgo/terms

Chúc bạn học tốt - happy studying.