Before you forget,
we ask.
Upload lecture PDFs, slides or Word files. AI writes questions on the key ideas, and a notification asks you one right when your memory starts to fade.
Sign up and start on the free plan right away.
See how it works ↓Q. A transaction runs completely, or not at all.
Tap an answer
Upload your study material.
Mirimi remembers when.
Upload your material
Pick a PDF, PowerPoint, Word or text (.txt, .md) file, paste text, or send a file with Share from chat or mail. Tables keep their rows and columns, and text in scans and images is read on your phone. The original file never leaves your phone — only the extracted text is saved.

Get questions
AI writes questions on the key concepts of your material, not trivia like the numbers inside an example.

Review before you forget
Missed questions come back soon; the ones you get right come back at growing intervals. You choose the times, days and quiet hours — and if you rarely answer at a time, the coach moves it to when you actually study and tells you (you can undo). A weekly coach report arrives on Sunday evening.

Only what's due today,
one button
Today's questions are gathered with an estimate of how long they take. Right answers make it harder and misses make it easier — format and difficulty adapt as you go.

Concepts first,
then questions
With new material, tap through its key concepts before the questions. Tap the key terms inside each explanation to highlight them.

See the sentence it came from
When you miss, the explanation shows which sentence of your material the question was built on, so you can check the AI's work.

Your memory at a glance
A memory curve shows how much of each material you still hold and when the next review is due.

Your study time,
at a glance
See how long you studied today, this week or any period — by day, by hour and by material. The weekly coach report includes your study time and the hours you study most.

Group a course,
review it together
Group the materials of one course, and a review mixes questions from all of them. Tap [New group] on the Library tab and pick the materials.

A weekly ranking
with friends
Only friends you invite see a weekly ranking by questions answered, and you can send five fixed cheers. You get a notification when a friend passes you. Your material and questions are never shown, and you can hide any material.

Seven ways to ask.
Speed O/X and Match pairs are light practice that isn't recorded.
Your material,
for your study only.
Original files stay on your phone
Only the text is extracted and saved. Your PDFs and slides are never uploaded, and text in scans and images is read on your phone. If you turn on Pro figure reading, only the images on pages with figures are sent to AI to be read, and they are not stored.
Never used to train AI
The text sent to generate questions is used only under terms that forbid the AI provider from training on it.
Delete means deleted
Me → Settings → Delete account removes your materials, questions and history at once.