Remember what you learn
Lembrei is a spaced repetition app. Put what you want to keep on cards, repeat them a few minutes a day, and the app decides when each card comes back.
lembrei
Portuguese
This is a real card. Click it to flip.
How it works
You forget most of a new fact within days unless you meet it again. Repeating it just before it fades takes the least effort.
Fill a box
A box is a set of cards on one topic. Write the cards yourself or describe the topic and let AI draft them.
Repeat every day
Lembrei picks the cards that are due today. You flip each one and say whether you remembered it.
Keep what you learned
A card you remember moves to a longer interval. One you forgot starts again, so the hard ones come back more often.
Days between repetitions of one card
After the eighth stage the card is finished: it has stayed in your memory for months.
What is inside
Cards from a prompt
Type or dictate what you are learning and get a set of cards to review and edit before they go into a box.
A schedule you do not manage
No settings to tune. The intervals double from one day to 128 days, and the app tracks where every card is.
Ready-made boxes
Take a box from the catalogue when you do not want to start from an empty one.
Five card layouts
A single big symbol, a word with a translation, a term with a longer explanation: pick what fits the fact.