01 Green meadow
Rolling hills and forests, for anything
Turn anything into lessons you’ll remember.
Give Remi a PDF, a photo of your notes, a lecture or a link. Remi reads it, turns it into bite-size lessons, quizzes you on what matters and brings every idea back right before you’d forget it.
- Free to start
- Works with what you already study
- Built on learning science
Remi reads dozens of formats, so you study from what you already have.
- Word
- PowerPoint
- EPUB
- Photos
- Handwritten notes
- Whiteboards
- Kindle (MOBI)
- Scanned books
- YouTube
- Articles
- Lectures
- Podcasts
- Videos
- Voice notes
- Source code
- Jupyter notebooks
- Markdown
How it works
From a pile of pages to knowing it cold.
Remi does the busywork of studying — reading, splitting, writing questions, scheduling reviews — so your time goes into actually learning.
- Step 1
Add anything
Drop in a PDF, snap a photo of your notes, paste a link or record a lecture. You can also share files to Remi straight from any other app.
- Document
- Image
- Video
- Audio
- Link
- Step 2
Remi reads it for you
In about a minute Remi reads the whole thing, names it, finds the ideas worth testing and splits it into bite-size parts: roughly a page or a minute each.
- Summary
- Key ideas
- Parts
- Step 3
Study a little at a time
Each session covers a few parts. Read, watch or listen right in the app, then tap Finish. Short sessions you can fit between classes, on the bus, or before bed.
- EPUB
- Web
- Audio
- Video
- Step 4
Prove it, then keep it
A quick quiz checks what you understood and explains what you missed. Flashcards come back right before you would forget them, so you keep it for good.
- Quizzes
- Flashcards
- Reviews
Any file
Give Remi anything you want to learn.
PDFs, photos of notes, lectures, links. Remi reads them and builds your lessons: a summary, the key ideas, flashcards and a quiz, all from your own material.
Try it: drag a file onto Remi.
Drop a file here
Your note · PDF
Cell Biology
- Summary & key ideas
- A trail of lessons
- Flashcards
- Quiz questions
Quizzes
Then quiz yourself on what you understood.
Seven kinds of questions, written from your material. Remi grades your answer, explains what you missed and brings your mistakes back until you get them right.
Nice!
Quiz done!
That’s every kind of question Remi writes.
Questions7
Accuracy100%
XP+70
Remember
Cards come back right before you’d forget.
Remi writes flashcards from your material and times each review to the moment the idea starts slipping. A few seconds a day, and you keep it for good.
Swipe a card, or tap it to see the answer first.
reviews
Without reviews: 23% left on day 30 With Remi: 99% left on day 30
Your journey
Every file becomes a trail to finish.
Each book, PDF or lecture you add gets its own trail, and every page you study moves Remi along it. You always see how far you are and what’s left, with chests, checkpoints and midterms on the way to the finish. Remi picks a world that suits the subject, and you can switch any time.
Campbell Biology page 126 of 204
62% done · 78 pages to the finish - Reward chests
- Checkpoints
- Midterms
01 
02 Wild jungle
Biology, ecology, medicine
03 Outer space
Physics, astronomy, chemistry, engineering
04 Ancient ruins
History, law, politics, philosophy
05 Storybook woods
Literature, languages, the arts
06 Crystal caves
Mathematics, statistics, logic, economics
07 Inside the computer
Computer science, programming, data
Progress
Your progress, tracked for you.
Remi tracks how much you remember and understand on every file, keeps your streak going and reminds you when it’s time to practice.
23
Keep the streak alive
Study, practice or review once a day and your streak keeps growing.
- M
- T
- W
- T
- F
- S
- S
Last 12 weeks
61 days studiedLess More
Level 12
Level 12438 / 610 XP
XP never runs out. Levels unlock rewards along the way.
Every file, two scores
86% Remember
74% Understand
How well your cards are holding, and how well you do on its quizzes.
Reminders that respect your day
Pick morning, lunch or bedtime. Remi only knocks then, and only when it matters.
Remi Learn · now 12 cards are about to slip Three minutes now keeps them for weeks.
Sparks keep it steady
One spark studies one part: about a page or a minute. Your battery refills every night, so you learn a bit every day instead of cramming.
Explore
Nothing to study yet? Pick from the catalog.
Courses, books and notes across dozens of subjects, ready to add to your library. Tell Remi what you’re into and it picks a few to start with.
- Mathematics
- Physics
- Chemistry
- Biology
- Computer Science
- History
- Economics
- Psychology
- Languages
- Philosophy
- Art
- Medicine
- Music
- Law
The science
Built on how memory actually works.
Remi schedules reviews with FSRS, an open-source algorithm trained on hundreds of millions of real flashcard reviews, and follows three of the best-tested findings in learning research.
Testing beats rereading
Recalling an idea strengthens it far more than reading it again. That is why every session ends with a quiz, not a summary.
Roediger & Karpicke (2006), Psychological ScienceSpaced beats crammed
Reviews spread over days and weeks last far longer than the same time spent in one sitting. Remi spaces them out for you.
Cepeda et al. (2006), Psychological BulletinMistakes are teachers
Feedback right after an answer, especially a wrong one, is what turns a guess into knowledge. Remi explains, then asks again later.
Butler & Roediger (2008), Memory & CognitionWhen can I download Remi?
Remi is coming soon to iPhone and Android. Join the launch list and we’ll email you the day it’s ready in your store.
What can I give Remi?
PDFs, Word and PowerPoint files, EPUB and Kindle books, photos of notes and whiteboards, YouTube videos, web articles, lecture recordings, voice notes, videos, Jupyter notebooks and source code. You can add them in the app or share them to Remi from any other app.
How does Remi make lessons from my file?
Remi reads the whole source, names it, writes a summary and splits it into parts of about a page or a minute each. As you study each part, Remi writes flashcards and quiz questions from it and schedules your reviews.
Is Remi free?
Yes. The free plan includes everything you need to study every day, with 48 sparks a day and ads. Remi Plus doubles your daily battery to 96 sparks, gives you 10 GB of storage and removes ads for $9.99 a month or $95.88 a year.
What are sparks?
Sparks are your study energy. One spark studies one part of a note, about a page or a minute of audio or video. Your battery refills every night, which keeps sessions short and steady and keeps Remi affordable to run.
Who can see my files and notes?
Only you. Your uploads are private to your account. We use them only to build your lessons and run your account, and we never sell them. Read the privacy policy.
Early access
Be first to learn with Remi.
Remi is almost ready. Leave your email and we’ll let you know the moment it lands on the App Store and Google Play.
