Duck Study: English Flashcards
Vocabulary from TV and movies
Only for iPhone
Free · In‑App Purchases
iPhone
Learn English vocabulary from shows and movies: flashcards at your level, spaced repetition, and an AI tutor that knows your cards.
English vocabulary from the shows and movies you watch.
Name a show or a movie you watch in English. Duck reads its subtitles, finds the words and phrases you don't know yet, and turns them into flashcards at your level. You keep the ones you want and study them a few minutes a day.
LEARN FROM WHAT YOU WATCH
• Search for a show or a movie and add it to your list
• Make cards for the episode you will watch next
• Keep or skip each suggested card, so your deck has only the words you need
• Every card comes with the real line from the scene
STUDY THAT FITS YOUR LEVEL
• Duck finds your level in a short first session and keeps you just above it, where you learn fastest
• Spaced repetition brings each card back at the right time: hard cards sooner, easy cards later
• Two answers only: you know it, or you are still learning it
• Practice for stubborn cards: see the meaning and type the word
• Study your cards without a connection; your progress syncs when you are back online
AN AI TUTOR THAT KNOWS YOUR CARDS
• Ask about any word or phrase and get a short, clear answer
• One tap turns the answer into a card
• Ask the tutor to edit or delete a card, and it waits for your OK
• Paste any text, such as an article or song lyrics, and get its vocabulary as cards
• Get explanations and examples for the card in front of you
YOUR DATA IS YOURS
• No passwords: sign in with a code sent to your email
• Delete your account at any time from Settings
DUCK PRO
Duck is free to start: your tutor runs on a one-time balance, and studying your cards is always free. Duck Pro gives you a much higher limit every month.
Duck Pro is an auto-renewable subscription, monthly or yearly, and both plans start with a free week. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. You can manage or cancel it in your Apple Account settings.
Terms of Use: https://duck.study/terms
Privacy Policy: https://duck.study/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Andrei Samsonov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Andrei Samsonov
- Size
- 8.9 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Duck Pro Yearly $34.99
- Duck Pro Monthly $4.99
- Copyright
- © 2026 Andrei Samsonov
