SubLingo: Vocabulary Builder

Flashcards & Spaced Repetition

Free · Designed for iPad. Not verified for macOS.

New: a redesigned review with nine exercise types, FSRS-6 scheduling that grades itself, Lightning Match, streak freezes and daily reminders. SubLingo turns the words you meet into words you remember. Save a word, and SubLingo schedules it with FSRS-6 spaced repetition, quizzes you nine different ways and grades every answer for you — so five minutes a day is enough. HOW IT WORKS • Save words from anywhere. Share text to SubLingo from any app, add words by hand with built-in translation, or sync them from the free SubLingo browser extension. • Every word keeps its sentence. Each card holds the translation, the meaning, the line you found it in, a picture you pick and its pronunciation. • Review in short rounds. SubLingo serves what's due, mixes in your saved sentences and lets you resume a round you left. • It grades itself. Tap or type your answer and FSRS-6 reads your accuracy, your speed and whether you needed a hint, then decides when the word comes back — in minutes, days or months. Nothing to self-rate. NINE WAYS TO REMEMBER New words start with recognition drills; as a word sticks, SubLingo moves you on to real recall: • Pick the meaning • Name the picture • Listen and pick • Complete the scene • Spell the word with letter tiles • Type the missing word • Type what you hear • Write it in the language you're learning • Translate it back Every word climbs five mastery stages: New → Learning → Familiar → Strong → Mastered. BUILD THE HABIT • Review Lock (opt-in): Screen Time pauses the apps you choose until today's cards are done. Snoozable, and off whenever you like. • Streaks with a daily goal, freeze days for when life happens, milestone badges and a streak card you can share • A daily reminder at the time you choose • Lightning Match: a fast word-matching game that never touches your schedule • Combos, hints, a slower replay and a summary after every round • Stats with 30-day charts and a mastery breakdown MORE • 48 languages, in either direction • Pronunciation from your phone's own voices — works offline • Light and dark themes, and sound effects you can switch off • A study buddy who cheers you on YOUR WORDS STAY YOURS Start as a guest — no account needed. Your vocabulary lives on your device and works offline. Sign in only when you want cloud sync. You can delete your account inside the app at any time, or at sublingo.pro/account-deletion.html. PREMIUM Everything above is free. Premium adds: • Cloud sync across your devices • Unlimited hover translations, custom subtitle styles and Focus Mode in the SubLingo browser extension Choose a monthly subscription or a one-time lifetime purchase; prices are shown in the app. WHO IT'S FOR • Learners who watch shows and videos in another language • Self-studiers who want flashcards that feel modern • Students preparing for JLPT, TOPIK, HSK, DELE, DELF, Goethe or TOEFL • Anyone with five minutes a day Pair SubLingo with the free browser extension at sublingo.pro to capture words from the subtitles you watch — with the original sentence attached — and review them here. Questions or feedback: support@sublingo.pro Privacy policy: https://sublingo.pro/privacy Terms of service: https://sublingo.pro/terms

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The developer, Nguyen Thanh Thien, 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:

    • Contact Info
    • User Content
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

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

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Nguyen Thanh Thien
Size
62.7 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.
Languages
English
Age Rating
4+
Copyright
© 2026 SubLingo
  • Developer Website
  • Privacy Policy

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