Dunno: English Dictionary
Linh Nguyen Education iPhoneiPadiPod touch
Dunno: English Dictionary is a free Education app for iPhone and iPad by Linh Nguyen. Rated 5.0/5 from 29 ratings. Requires iOS 12.0.
- Rating
- 5.0
- 29 ratings
- Price
- Free
- on the App Store
- Size
- 196 MB
- Age 4+
- Updated
- Sep 8
- 2026 · v2.3.3
Screenshots
About Dunno: English Dictionary
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 http://dunno.ai Privacy Policy: https://dunno.ai/other/privacy-policy Terms of Use: https://dunno.ai/other/term WE READ EVERY MESSAGE Send ideas, bug reports or feature requests to [email protected] — thank you!
Ratings & reviews
5.0
29 ratings
What’s new
Version 2.3.3 · Updated September 8, 2026
• Fixed spelling in word form labels (plural, comparative) • Fixed the app closing unexpectedly when tapping a topic tag • General stability improvements
App privacy
The developer, Linh Nguyen, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Usage Data: Advertising Data
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Advertising Data
- Contact Info: Email Address, Name
Used for: Third-Party Advertising, Analytics
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Dunno: English Dictionary | 5.0 / 5 (29 ratings) | Free | September 8, 2026 | |
| Todaii: Learn English | 4.8 / 5 (28) | Free | Oct 2, 2026 | Compare |
| English Dictionary ProDict | 4.8 / 5 (396) | Free | May 27, 2026 | Compare |
| Onely: Reading & Vocab | 4.8 / 5 (9) | Free | Oct 9, 2026 | Compare |
| Từ Điển Anh Việt GPT Offline | 3.3 / 5 (4) | Free | Mar 27, 2026 | Compare |
| Todaii: Easy Korean | 4.5 / 5 (70) | Free | Aug 11, 2026 | Compare |
| BeDict – Visual English Memory | 4.5 / 5 (2) | Free | Feb 6, 2026 | Compare |