K Flash: Korean Flashcards

Master the Korean Language

Free · In‑App Purchases

Build a strong foundation in Korean with the Free Version of K Flash! K Flash is a Korean study app for serious learners: spaced repetition that adapts to your pace, opinionated card design, and no shortcuts. Master the Korean language on iPhone, iPad, and Mac. BUILD A FOUNDATION IN KOREAN — FREE A substantial part of K Flash is free to use for as long as you like. • The complete Hangul deck — learn to read Korean • Drill the 500 most frequent Korean Vocabulary words • Pick up essential survival and conversational phrases in our Phrasebook • Memorize and drill the three beginner Hanja levels (8급, 준7급, 7급) • Study beginner grammar patterns, with sentence cloze cards • The complete I Ching deck — dive into the Confucian roots of Korean society Our spaced-repetition study modes, quiz, and browse mode are all available for each of our six decks. Your streaks, statistics, study history, favorites, and iCloud sync are free for everyone, permanently — including for content you haven't unlocked. Nothing you study or unlock is ever taken away. SIX DECKS, BUILT FOR SERIOUS KOREAN STUDY • Hangul — from individual jamo to the rules of syllable blocks • Phrasebook — everyday Korean phrases with politeness-level callouts • Vocabulary — thousands of cards verified against the National Institute of Korean Language, with glosses, example sentences, parts of speech, frequency rankings, and corresponding hanja • Grammar — verb endings, particles, and sentence patterns, each with study examples, and cloze sentences to drill them • Hanja — the 한국어문회 배정한자 levels with readings, meanings, and compound examples • I Ching — the sixty-four hexagrams in James Legge's public-domain translations FOUR WAYS TO LEARN & STUDY • Browse — read at your own pace, flip cards, mark favorites • Study — spaced repetition tracking your mastery card by card • Quiz — diagnostic sets with bronze, silver, and gold tiers • Quick Study — short cross-deck sessions for daily check-ins or hard grinds BUILT THOUGHTFULLY • No ads, no analytics, no tracking — your data is yours alone • No account required, and no server: everything lives on your own devices • Optional iCloud Sync — study records, streaks, favorites, and quiz progress carried across iPhone, iPad, and Mac, restorable anytime, never visible to anyone but you • Export and import anytime; one-tap erase • Built-in support for Apple's Premium and Enhanced Korean voices, bringing high quality speech synthesis to press-and-hold audio examples • Customizable study reminders and streak-saver notifications • Light, dark, and monochrome modes, and a customizable color scheme UNLOCK THE COMPLETE LIBRARY Unlocking K Flash grants you access all 20,000+ cards for browse, study, and quiz across all six decks on iPhone, iPad, and Mac. There are three ways to unlock it: • Founding Edition — a single one-time purchase, no subscription. Includes every K Flash 1.x update on iPhone, iPad, and Mac. The Founding Edition is offered for a limited period and will be withdrawn from sale when K Flash 2.0 ships; withdrawal does not affect anyone who has already purchased it. • Annual subscription • Monthly subscription Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms of Use: https://legal.auleus.com/terms Privacy Policy: https://legal.auleus.com/privacy Support: https://legal.auleus.com/support

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A substantial portion the K Flash content library no longer requires any purchase: the complete Hangul and I Ching decks, the 500 most frequently used Korean words, essential and survival phrases, beginner Hanja, and beginner level grammar — with every study, quiz, and browse mode working on all of it. No account, no sign-up, no trial - and nothing to cancel. Keep and use the app as long as you like. Your streaks, statistics, study history, favorites, and iCloud sync are free for everyone, permanently. Also new: • The Founding Edition — buy K Flash outright with a single payment instead of subscribing. Every K Flash 1.x update included, on iPhone, iPad, and Mac. The Founding Edition is offered for a limited period and will be withdrawn from sale when K Flash 2.0 ships; withdrawal does not affect anyone who has already purchased it. • Much lower, student-friendly pricing on both the monthly and annual plans. Existing subscribers: your renewal price drops automatically. Nothing to do.

Version 1.3.2

The developer, Auleus LLC, 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 Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

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    Information

    Seller
    • Auleus LLC
    Size
    • 35.7 MB
    Category
    • Education
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.5 or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    • K Flash Monthly $4.99
    • K Flash Founding Edition $59.99
    • K Flash Annual $24.99
    • Learn More
    Copyright
    • © 2026 Auleus LLC
  • Developer Website
  • Privacy Policy

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