Racki
Spaced Repetition Flashcards
Free · Designed for iPad. Not verified for macOS.
Turn what you've learned in Duolingo into lasting memory. Spaced repetition flashcards for 18 languages — offline, free, no account needed.
Racki turns the vocabulary from your Duolingo courses into spaced-repetition flashcards — so the words you've learned actually stay learned. No account, no sign-up, nothing to configure. Open it and start reviewing.
Enable the course sections you've finished and drill just those words — nothing you haven't reached yet.
What you get:
• Spaced-repetition review that resurfaces words right before you'd forget them
• Two drill directions — meaning → word and word → meaning — each scored separately, so you can see which way needs work
• Original script displayed alongside, so you can always check your reading
• Choose exactly which sections are active and review only what matters now
• Progress tracked automatically as you go
• Works fully offline — the entire word set lives on your device
• Your study data stays on your device: no account, no cloud, no sign-up
• Free, kept that way by a single discreet banner ad — no pop-ups, no paywalls
Supported courses (18 and growing):
Arabic, French, German, Greek, Hindi, Irish, Italian, Japanese, Korean, Latin, Norwegian, Polish, Portuguese, Russian, Spanish, Swedish, Turkish, Ukrainian
Racki is an independent companion app and is not affiliated with, endorsed by, or sponsored by Duolingo. "Duolingo" is used only to describe the courses whose vocabulary you can review.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Patryk Grzesiak, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Patryk Grzesiak
- Size
- 47.8 MB
- Category
- Education
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Connected Particles