Repeat, don't cram.
PrettyDo asks a few cards every day and remembers when each one is due. Ten minutes is enough — no points, no streaks.
Why this way? The rating you tap only writes the date the card comes back. No streak to keep, nothing to lose.
Which planet is closest to the Sun?
Mercury · عطارد · Mercury
It circles the Sun in 88 days — the shortest year of any planet.
This is the app's real review card — go ahead, tap an answer.
Any language works here.
One concept carries its words in every language you study — not a deck per language, but one idea with all its names.
Why every language on one concept? Because what you know doesn't change when you switch languages — and right-to-left languages like Arabic, Hebrew and Persian render properly here.
A coach who reads your answers, not just your score.
He looks at what you actually did — what you rated Not sure and got right that evening, what you haven't touched in days — and says it in plain words.
Ask about any card: the first answer is a short, careful explanation — the trap in the question, the idea that holds the concepts together. Then five follow-up questions a day, free.
Why a coach? Because numbers alone don't tell you what to change next — he reads them and says the one thing to do.
Why PrettyDo exists.
Why repeating beats cramming
Ten minutes today, ten again in three days — spaced learning stays, one long night fades.
Read →How the certainty question works
Not sure · Think so · Sure — three honest answers, and what the app does with each one for the next date.
Read →Any language, even ones written right to left
Arabic, Hebrew, Persian — how one learning plan carries every language, in both directions.
Read →Start today with ten minutes.
Why one session a day? Because a small session you actually keep beats a long one you don't — and the app writes tomorrow's cards the moment today's ends.