Lock Words
For iPhone · iOS 17 and later

25 words. 7 days. Can you collect them all?

Better vocabulary with every unlock, in British English. Five new words land on your Lock Screen every weekday. Each evening, a one-minute test decides which ones you keep. Miss one and you have the weekend to win it back.

Coming to the App Store in January 2027

No account. No ads. Your progress stays on your iPhone.

Tuesday 5 January 9:41
Reticentadjective · RET-i-suhnt

not revealing one's thoughts or feelings readily.

On your Lock Screen all day

Today's words take turns on your Lock Screen, changing as often as you like. Tap one to hear it in a British voice.

A one-minute evening test

Three kinds of question, each with a real example sentence. Get a word right and it's yours.

Your own dictionary

Every word you collect is saved, ready to search and hear again whenever you need it.

Weekend catch-up

Each week brings 25 words. Missed a few? Saturday and Sunday give you another go before they escape.

Second chances

An escaped word isn't lost for good. Keep your streak going and you can win it back.

Streaks and trophies

Build a daily habit, earn retries and streak freezes, and collect trophies from Common to Legendary.