Hapax: Word of the Day

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.