Import anything
PDF · Markdown · .apkg · paste
Drag a textbook PDF in, or paste lecture notes. Optional bring-your-own-key AI turns raw text into typing-ready cards — your key, our prompts.
Final examination 19 courses on file
Know it cold
by the exam.
Crash courses for real university courses — built from the actual textbooks, deep enough to sit the paper. You don't read them. You type the answers until you know them.
Built for Athabasca University and University of Waterloo papers, plus the open programming tracks. Not yours? Request it — we build by demand.
Type your code, or browse the bank.
Find your course → No account needed. Sign in later to keep progress.
- Time allowed
- however long you have left
- Aids permitted
- all of them
- Instructions
- answer everything — by typing it
0 wpm
100% acc
0:00 time
idleQuicksort partitions an array around a pivot, then recursively sorts each side. The average case runs in n log n time, but a poor pivot choice can degrade to quadratic. Lomuto and Hoare are the two classic partition schemes; Hoare tends to do fewer swaps in practice. Choose the pivot well — randomize, or median-of-three.
what a course is here
Not notes. Not a question dump.
A course you can finish.
Every course is written from the actual textbooks for the actual syllabus, then cut into lessons you sit down and do. The typing, the drills and the Vim dojo are still here — they just aren't why you came.
Courses
Learn by typing every line
Programming languages and university courses — original tracks where the motor act of typing the material is what encodes it.
Open →Practice
Touch typing, drills and races
Touch-typing courses, timed practice, weak-key warm-ups built from your own misses, pace races and a global leaderboard.
Open →Review
Memory on a schedule
Type the answer; FSRS-6 decides exactly when you see it again. Cram mode tightens the schedule before an exam.
Open →Vim power
A full Vim dojo
Its own trainer — Vim Golf challenges, a live playground and a searchable cheat-sheet. Opt into Vim motions everywhere else, too.
Open →Community power
Decks other learners published
Public decks by school and course code — fork any of them into your own library and type through it.
Open →Import power
Bring your own material
Drag in a PDF, Markdown or an Anki .apkg. Optional bring-your-own-key AI turns notes into typing-ready cards.
Open →watch the scheduler
Most study apps hide their algorithm.
We expose it.
Six cards. One rating. Pick a card, rate it — the scheduler re-positions it on the next-due axis in real time, with the actual arithmetic. No black box.
$ schedule --next 14d
FSRS-6 · retention target 0.90 pick a card · rate to re-schedule
selected card
quicksort · partition
next review · ≈ 3.4 d
rate this attempt
Every review in the app runs this same loop. You can read the rules.
manifesto
Studying isn't reading.
It's doing.
Most study apps treat your brain like a passive disk — highlight a passage, see the same words tomorrow, hope they stuck.
We don't. Every review is a typed answer. Every typed answer is a small, measurable retrieval. The keyboard isn't a hurdle; it's the whole point.
Layer on FSRS-6 spaced repetition and code-native drills, and study stops being something you postpone.
three movements
One loop. No friction.
Type through it
Word engine · code engine · Vim
Prose flows word by word. Code is character by character with syntax highlighting, line numbers, and a working Vim NORMAL mode for the keyboard hard-mode crowd.
Remember it
FSRS-6 · cram · daily challenge
Every keystroke informs the schedule. Forgotten cards come back sooner; mastered ones rest. Exam coming up? Cram mode tightens the interval cap.
- 19
- courses on file
- 2
- schools covered
- FSRS-6
- the scheduler
- $0
- the floor, kept
faq
$ man memra
Anki schedules well and stops there. Quizlet is broad-audience and gated. MonkeyType is pure typing, no study. Memra is the intersection — typing as recall, scheduled by FSRS-6, with code and Vim rendered natively.