Lock In Knowledge That Sticks
Flashcards that don't just repeat — they remember. Orki's spaced repetition algorithm schedules each card at the exact moment you're about to forget it, building lasting memory with less time spent reviewing.
Pharmacology
124 cards · 68% mastered
What is the mechanism of action of beta-blockers in heart failure?
What makes these flashcards smarter
Not just digital index cards — a full memory-training system backed by cognitive science.
Spaced Repetition Engine
Based on the proven SM-2 algorithm, cards resurface at widening intervals — maximizing retention with the minimum amount of review time.
Tap-to-Flip Interface
Clean, distraction-free card design. Tap to reveal the answer, then rate your confidence: Easy, Medium, or Hard. That's all it takes.
Smart Daily Deck
Each morning, Orki builds your review deck from cards that are due today plus a small batch of new material — always the right amount.
Mastery Tracking
Every deck shows a progress bar from 0% to 100% mastered. Watch your collections turn green as knowledge locks in for the long term.
How it works
Three steps to a review habit that actually builds long-term memory.
Choose a Deck
Browse subject-specific decks curated for board exams, or build your own cards from exam items you want to memorize.
Study & Rate Your Recall
Flip each card and honestly rate how well you remembered it. Easy cards come back in days. Hard cards return tomorrow.
Let the Algorithm Work
Orki handles the schedule so you never review too early or too late. Study consistently and your mastery percentages climb steadily.
Make every review session count.
Start with a curated deck today and let the spaced repetition engine do the heavy lifting for you.
Start for Free