Hapax: Word of the Day

Vocabulary on your Lock Screen

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

A word a day on your Lock Screen. No ads, no account, no subscription. Just words worth knowing. One new word every day, on your Lock Screen and Home Screen, without opening an app. Hapax has no ads. No account. No subscription. No notifications. No tracking: the privacy label says "Data Not Collected" because there is nothing to collect. The whole app works offline. There is no server to talk to. • 440 hand-curated words across four difficulty levels, from foundation to expert • Widgets that actually show the word, definition, and example, and flip at midnight • Tap the pronunciation to hear it, even in airplane mode • Nine themes: colored papers for daylight, deep velvets for night. The widgets wear them too • Your complete history, forever, not just the last five words • Practice the words you have already met, ten at a time. No streaks, no scores, no guilt • Nothing is gamified. Nothing nags. Nothing is behind a paywall. Made for people who love words: writers, readers, lawyers, students, and anyone who wants a bigger vocabulary without a bigger screen-time number. A "hapax" is a word that appears exactly once in a text, which is how often you'll see each word here: once, at its moment, remembered.

Ratings & Reviews

  • 5.0
    out of 5
    7 Ratings

The developer, QUIETSPIRE 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

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

    Information

    Seller
    • QUIETSPIRE LLC
    Size
    • 36.6 MB
    Category
    • Education
    Compatibility
    Requires iOS 16.4 or later.
    • iPhone
      Requires iOS 16.4 or later.
    • Mac
      Requires macOS 12.0 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 QUIETSPIRE LLC
  • Developer Website
  • Privacy Policy

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