---
title: "Dunno: English Dictionary - Reviews, Revenue and Downloads in Vietnam | Apple App Store"
description: "Look up any English word, translate text or photos, and hear how it's actually pronounced — online or offline.  Dunno is more than a dictionary. It's a complete English learning assistant: 350,000 wor"
---

# Dunno: English Dictionary — Vietnam
> Translate, Pronounce, Offline

![Dunno App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/3a/63/af/3a63afb3-5f21-c80c-f375-9555ea2d420b/AppIcon-0-0-1x_U007emarketing-0-11-0-0-85-220.png/400x400bb.png)

**Developer:** [Linh Nguyen](https://apptail.io/developer/linh-nguyen-yPb)
**Category:** Education
**Rating:** 4.7/5 (1,091 ratings)
**Price:** Free
**Bundle ID:** ai.dunno.dict
**Store:** Apple App Store
**Country:** Vietnam
**Version:** 2.3.3 (released 2026-09-08)
**Original Release:** 2021-06-04

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/vn/app/app/id1564720498)
**AppTail Page:** [https://apptail.io/app/dunno-english-dictionary-kbY/vietnam](https://apptail.io/app/dunno-english-dictionary-kbY/vietnam)

## Dunno Description
Look up any English word, translate text or photos, and hear how it's actually pronounced — online or offline.

Dunno is more than a dictionary. It's a complete English learning assistant: 350,000 words, grammar organized by CEFR level, camera and voice translation, pronunciation scoring, and your own vocabulary notebook with flashcards and quizzes.

LOOK UP ANYTHING, ANYWHERE
- Full offline dictionary — words, grammar, prepositions, sentence patterns, images
- Autocomplete predicts the word as you type
- Search by voice, or point your camera at a word and get the meaning instantly
- Every entry includes definitions, examples, word forms, synonyms, antonyms and related words
- Audio pronunciation in both British and American English

TRANSLATE 89 LANGUAGES
Two-way translation for text, photos and full sentences — Spanish, French, Chinese, Japanese, Korean, Vietnamese and 80+ more.

PERFECT YOUR PRONUNCIATION
Record yourself, compare it with a native speaker, and get instant feedback on exactly what to fix.

CHECK YOUR GRAMMAR
Paste any sentence to catch spelling and grammar mistakes, with a clear explanation of every correction.

GRAMMAR BY LEVEL
127 grammar topics organized from A1 to C2, so you always know what to learn next.

YOUR VOCABULARY NOTEBOOK
- Save any word with one tap
- Review with flashcards and quizzes so words actually stick
- Ready-made lists: 3,000 TOEIC words, plus IELTS, TOEFL and SAT sets
- Word lists by field of study and difficulty level
- Track how many words, sentences and grammar points you've mastered
- Keep studying on your lock screen in spare moments

PRACTICE FOR THE TEST
Full TOEIC mock tests with answer keys and detailed explanations for every question.

ASK THE COMMUNITY
Stuck on a sentence? Post it and get answers from other learners.

BY THE NUMBERS
- 350,000 English words
- 418,000 examples and illustrations
- 127 grammar lessons, A1 to C2
- 89 translation languages

Also available on the web at 

Privacy Policy: 
Terms of Use: 

WE READ EVERY MESSAGE
Send ideas, bug reports or feature requests to eup.mobi@gmail.com — thank you!

## Dunno Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/e2/c0/59/e2c05934-5ade-9eee-3c84-036379cd84f8/6d56a28b-aa2f-48c3-ada9-63daed3bcdde_1.jpg/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/72/53/81/72538173-9302-42e1-0237-14f94c463e0c/47ca6b67-1858-48fc-8814-cb72623046ad_2.jpg/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/9a/6e/65/9a6e65aa-b71b-d704-79b4-f8ebfffb247a/8db5d04e-68b4-446e-b21d-1a6d66b4389d_3.jpg/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/54/7f/c8/547fc899-19b5-c3d2-d38f-d743a8c78ef9/9acf96db-adae-4dd5-b067-5e38405e166e_4.jpg/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/1a/d0/07/1ad00764-e320-d841-ae83-870fddb47abc/738ebbfc-8f79-4a3d-ac4c-872d6f8eb0a8_5.jpg/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/59/75/46/5975460a-668b-84e0-5273-98ee0e1b4f64/b1f04bb5-67f1-4ee8-bcff-803c6e8e5baf_6.jpg/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/56/3f/fa/563ffa1c-4b9d-1a3c-0166-fa06b1f3cf82/66102042-7336-473b-a3ab-f94b187cd26f_7.jpg/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/48/d9/b0/48d9b09a-a03e-d455-4c32-3d8867b2824e/4819e775-876d-4b45-a527-32dc3f65e0fc_8.jpg/1242x2688.png)

## Dunno Rating Breakdown in Vietnam
- 5 stars: 894 (82%)
- 4 stars: 136 (12%)
- 3 stars: 19 (2%)
- 2 stars: 17 (2%)
- 1 stars: 25 (2%)

## Dunno Reviews in Vietnam

### ***** "app rất tiện dụng, tôi rất thích"
..
-- cobesangtrongquyphai, 2026-09-30

### ****- "Đừng cho mua nx mà, free hết đi r m cho 5 s…"
Heheee. Nhaa, vs cả bộ đề thi thì 0 nên bắt mua như thế nên ấy freee chứ. Acc mình là quyentb3009 nha
-- Egg……pate, 2026-09-28

### ***** "this is nice tho (btw im not a bot)"
ngl i recommend this absolute gem
-- gooddMonkeys, 2026-09-26

### ***** "10 điểm"
Mình dùng để ôn tập từ năm lớp 8 và bây giờ là sinh viên đại học năm nhất, ứng dụng dùng quá ổn, còn có cả web nếu ai không muốn tải về. Đánh giá được phát âm
-- Minhf23, 2026-09-23

### *---- "logo"
yêu cầu thay đổi logo, xấu quá
-- KemLemNhem 1210, 2026-09-22

### ***** "App tốt"
Tui thấy cái từ điển này oke nhất trong mấy cái từ điển anh-viet đối với tui rồi. Tui cảm thấy app này phù hợp với tiêu chí của 1 app dịch của tui nên tui chấm 5 sao.
-- Yeollobeollo, 2026-09-22

### *---- "dùng chán"
Sau một thời gian dài dùng thấy app khá dở tệ, nhiều từ về nghĩa ko đầy đủ và có những từ còn ko có trong app, giao diện khá khó dùng gần đây cập nhập còn khó dùng hơn nữa, mình mua vip mà cảm giác ko nhận được nhiều quyền lợi lắm còn ko bằng app Tflat, đây đúng kiểu tra nghĩa thông thường còn để học từ vựng thì phải kết hợp mấy app khác nữa, điểm cộng là phần ghi âm
-- hoitinhnghich, 2026-09-17

### **--- "Nâng cấp ko tốt"
Tf ap ơi s nâng cấp lên mà quả giao diện lỏ thế này đt thì t ko nói mà trên máy tính quả giao diện đang dthw h nhìn như web dịch của gg nhìn phèn đéo chịu đc
-- Yuu_chanyne, 2026-09-13

### ***** "Trần bình prime 2019"
App hay vl 
T ko phải npc
-- Hoánghsh, 2026-09-08

### ***** "Cái ap này dùng dễ có cả phiên âm luôn"
Cực kì yêu thích
-- siêu lốp trưởng, 2026-09-05

[View all Dunno reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Dunno In-App Purchases
| Item | Price |
|------|-------|
| Premium version | 599.00 đ |
| Premium version [-50%] | 299.00 đ |
| Premium version [-30%] | 399.00 đ |
| Premium version [-40%] | 399.00 đ |
| Basic version | 299.00 đ |
| Standard version | 399.00 đ |
| Standard version [-30%] | 279.00 đ |
| Standard version [-50%] | 199.00 đ |
| Standard version [-40%] | 239.00 đ |
| Basic version [-50%] | 149.00 đ |


## Dunno Discovered Keywords
- english dictionary dunno
- english dictionary prodict

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## Dunno Available In
- [Vietnam](https://apptail.io/app/dunno-english-dictionary-kbY/vietnam)
- [United States](https://apptail.io/app/dunno-english-dictionary-kbY/united-states)
- [Taiwan](https://apptail.io/app/dunno-english-dictionary-kbY/taiwan)
- [Japan](https://apptail.io/app/dunno-english-dictionary-kbY/japan)
- [South Korea](https://apptail.io/app/dunno-english-dictionary-kbY/south-korea)
- [Australia](https://apptail.io/app/dunno-english-dictionary-kbY/australia)
- [China](https://apptail.io/app/dunno-english-dictionary-kbY/china)
- [Singapore](https://apptail.io/app/dunno-english-dictionary-kbY/singapore)
- [Canada](https://apptail.io/app/dunno-english-dictionary-kbY/canada)
- [Egypt](https://apptail.io/app/dunno-english-dictionary-kbY/egypt)
- [Germany](https://apptail.io/app/dunno-english-dictionary-kbY/germany)
- [Angola](https://apptail.io/app/dunno-english-dictionary-kbY/angola)
- [Hong Kong SAR China](https://apptail.io/app/dunno-english-dictionary-kbY/hong-kong)
- [Philippines](https://apptail.io/app/dunno-english-dictionary-kbY/philippines)
- [Poland](https://apptail.io/app/dunno-english-dictionary-kbY/poland)
- [Indonesia](https://apptail.io/app/dunno-english-dictionary-kbY/indonesia)
- [Algeria](https://apptail.io/app/dunno-english-dictionary-kbY/algeria)
- [Ecuador](https://apptail.io/app/dunno-english-dictionary-kbY/ecuador)
- [Estonia](https://apptail.io/app/dunno-english-dictionary-kbY/estonia)
- [Spain](https://apptail.io/app/dunno-english-dictionary-kbY/spain)
- [Finland](https://apptail.io/app/dunno-english-dictionary-kbY/finland)
- [France](https://apptail.io/app/dunno-english-dictionary-kbY/france)
- [United Kingdom](https://apptail.io/app/dunno-english-dictionary-kbY/united-kingdom)
- [Grenada](https://apptail.io/app/dunno-english-dictionary-kbY/grenada)
- [Greece](https://apptail.io/app/dunno-english-dictionary-kbY/greece)
- [Croatia](https://apptail.io/app/dunno-english-dictionary-kbY/croatia)
- [Hungary](https://apptail.io/app/dunno-english-dictionary-kbY/hungary)
- [Ireland](https://apptail.io/app/dunno-english-dictionary-kbY/ireland)
- [Israel](https://apptail.io/app/dunno-english-dictionary-kbY/israel)
- [India](https://apptail.io/app/dunno-english-dictionary-kbY/india)
- [Iceland](https://apptail.io/app/dunno-english-dictionary-kbY/iceland)
- [Italy](https://apptail.io/app/dunno-english-dictionary-kbY/italy)
- [Kuwait](https://apptail.io/app/dunno-english-dictionary-kbY/kuwait)
- [Cayman Islands](https://apptail.io/app/dunno-english-dictionary-kbY/cayman-islands)
- [Kazakhstan](https://apptail.io/app/dunno-english-dictionary-kbY/kazakhstan)
- [Lebanon](https://apptail.io/app/dunno-english-dictionary-kbY/lebanon)
- [Latvia](https://apptail.io/app/dunno-english-dictionary-kbY/latvia)
- [Madagascar](https://apptail.io/app/dunno-english-dictionary-kbY/madagascar)
- [North Macedonia](https://apptail.io/app/dunno-english-dictionary-kbY/north-macedonia)
- [Macao SAR China](https://apptail.io/app/dunno-english-dictionary-kbY/macau)
- [Mexico](https://apptail.io/app/dunno-english-dictionary-kbY/mexico)
- [Malaysia](https://apptail.io/app/dunno-english-dictionary-kbY/malaysia)
- [Nigeria](https://apptail.io/app/dunno-english-dictionary-kbY/nigeria)
- [Netherlands](https://apptail.io/app/dunno-english-dictionary-kbY/netherlands)
- [Norway](https://apptail.io/app/dunno-english-dictionary-kbY/norway)
- [New Zealand](https://apptail.io/app/dunno-english-dictionary-kbY/new-zealand)
- [Panama](https://apptail.io/app/dunno-english-dictionary-kbY/panama)
- [Peru](https://apptail.io/app/dunno-english-dictionary-kbY/peru)
- [Pakistan](https://apptail.io/app/dunno-english-dictionary-kbY/pakistan)
- [Portugal](https://apptail.io/app/dunno-english-dictionary-kbY/portugal)
- [Romania](https://apptail.io/app/dunno-english-dictionary-kbY/romania)
- [Russia](https://apptail.io/app/dunno-english-dictionary-kbY/russia)
- [Saudi Arabia](https://apptail.io/app/dunno-english-dictionary-kbY/saudi-arabia)
- [Sweden](https://apptail.io/app/dunno-english-dictionary-kbY/sweden)
- [Thailand](https://apptail.io/app/dunno-english-dictionary-kbY/thailand)
- [Tunisia](https://apptail.io/app/dunno-english-dictionary-kbY/tunisia)
- [Türkiye](https://apptail.io/app/dunno-english-dictionary-kbY/turkey)
- [Ukraine](https://apptail.io/app/dunno-english-dictionary-kbY/ukraine)
- [Uzbekistan](https://apptail.io/app/dunno-english-dictionary-kbY/uzbekistan)
- [South Africa](https://apptail.io/app/dunno-english-dictionary-kbY/south-africa)
- [Argentina](https://apptail.io/app/dunno-english-dictionary-kbY/argentina)
- [Austria](https://apptail.io/app/dunno-english-dictionary-kbY/austria)
- [Azerbaijan](https://apptail.io/app/dunno-english-dictionary-kbY/azerbaijan)
- [Belgium](https://apptail.io/app/dunno-english-dictionary-kbY/belgium)
- [Bulgaria](https://apptail.io/app/dunno-english-dictionary-kbY/bulgaria)
- [Brunei](https://apptail.io/app/dunno-english-dictionary-kbY/brunei)
- [Brazil](https://apptail.io/app/dunno-english-dictionary-kbY/brazil)
- [Belarus](https://apptail.io/app/dunno-english-dictionary-kbY/belarus)
- [Belize](https://apptail.io/app/dunno-english-dictionary-kbY/belize)
- [Switzerland](https://apptail.io/app/dunno-english-dictionary-kbY/switzerland)
- [Chile](https://apptail.io/app/dunno-english-dictionary-kbY/chile)
- [Colombia](https://apptail.io/app/dunno-english-dictionary-kbY/colombia)
- [Czechia](https://apptail.io/app/dunno-english-dictionary-kbY/czechia)
- [Denmark](https://apptail.io/app/dunno-english-dictionary-kbY/denmark)
- [Dominican Republic](https://apptail.io/app/dunno-english-dictionary-kbY/dominican-republic)
- [United Arab Emirates](https://apptail.io/app/dunno-english-dictionary-kbY/united-arab-emirates)
- [Senegal](https://apptail.io/app/dunno-english-dictionary-kbY/senegal)

---

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