Fastdic - Fast Dictionary

Contains adsIn-app purchases
4.5
48.3K reviews
Content rating
Everyone
5M+
Downloads
Content rating
Everyone
Learn more
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About this app

English to Persian/Farsi and Persian/Farsi to English dictionary and translator

We proudly provide service to more than 7 million active users each month.

Features:
- AI - Improve grammar, paraphrase, expand or summarize text and change tone/style of writing.
- AI Translator - Persian, English, German, Italian, Spanish, French, Arabic and Turkey
- English to Persian/Farsi and vice-versa Dictionary & Translator (Online & offline)
- More than 250,000 words
- More than 100,000 example sentences
- Sync your favorite and history words
- Synonyms and antonyms
- Online and offline English audio pronunciations with both American & British accent (For words and sentences)
- Part of speech (POS)
- British & American English phonetics
- Search different forms of nouns and verbs (Simple past tense, Past participles, Irregular verbs, Third person singular, Present participle, Plural)
- History of searched words
- Favourites list - Create custom folders with your favourite words
- Word sharing - Easily share a new word or definition you have just learned with your friends
- Word of the day - Learn a new word, every day
- Voice translator - Find an entry when you do not know how a word is spelt
- Image translator - Translate English contents by taking a photo
- The ability to convert numbers to words. (Enter any number or decimal number to see both English and Persian numbers in letters.)
- Light and Dark mode
- Floating Widget and contextual menu
- No internet connection required to use dictionary (The translator requires internet)
- Fast and simple
And more incredible features

This app has ads and reward ads. To remove ads or gain access to additional features, visit the app's More section.
Updated on
Feb 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, App info and performance, and Device or other IDs
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
46K reviews
Omid As
February 8, 2026
This app would be much more effective if vocabulary were organized by frequency and real-life usage. Some words are essential for daily conversation (like “get”) and should be marked as high priority. It would help to show whether a word is used more in spoken or written English, include the most common conversational synonym, and add a conversation practice section to help users use these words naturally.
6 people found this review helpful
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Fast Dictionary
February 12, 2026
Thank you for your thoughtful suggestions 💙 If you use the “Most Used” filter in the word list section, you can already see high-frequency vocabulary more easily. We truly appreciate your ideas. With more user support through subscriptions, we’ll be able to develop and add even more features that users like you are looking for. 🙏
Abdul khaleq baghlani
January 3, 2026
One of the best dictionaries I’ve ever used—I’ve been using it for more than six years now. It has had excellent and advanced updates, especially because example sentences are created for each word. Please create more example sentences for each word, using AI or another method.
7 people found this review helpful
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Fast Dictionary
January 6, 2026
Thank you for your great feedback💙 About examples: our sentences are added manually by our editorial team, not fully by AI. This is because AI examples are often inaccurate or don’t match the exact meaning. We prefer reliable, human-verified content, and we’re continuously adding more examples over time.
Mahsa Eghbali
February 15, 2026
The best dictionary ever! I’ve been using it for about seven years, and it’s been incredibly helpful. Thank you for creating such a great app.
3 people found this review helpful
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Fast Dictionary
February 17, 2026
Dear Mahsa, Thank you so much for your kind words and for your long-term support 💙 We’re truly happy Fastdic has been helpful to you over the years. Your encouragement means a lot to our team and motivates us to keep improving the app 🌱

What’s new

‪In this version, the database and word results page design have been updated to significantly improve efficiency and user experience. In addition, new categories have been added to the categorized words section, and a filter feature has been added to categorized words. Also, an English-to-English dictionary has been added to the word results page.‬