Memorise

Reading a line once will not make it stick. Here you see it again just before you forget it, and you answer a quiz instead of judging yourself.

How it works

We forget quickly what we do not see again. But each successful recall extends how long the information stays available: reviewing a line at the right moment costs less effort than reading it ten times in a row.

That is spaced repetition. Every entry you keep carries an interval, which widens with each correct answer: 1, 3, 7, 16, 35 days. A mistake brings it back to tomorrow — not to zero, since a line you once knew is not an unknown line.

In practice: with thirty lines kept, you review four or five a day, not thirty. And the ones you have mastered stop bothering you.

Why a quiz rather than an "I know it" button

Judging yourself is unreliable: you feel sure of an answer you could not have produced. Picking between four plausible options, all drawn from the same category, gives you a result you cannot fudge.

Where your data lives

In your browser, nowhere else. No account, no server. Install the site on your home screen if you want your progress to survive a week away: that is the only way around Safari's automatic cleanup.