Remember Everything You Learn with Spaced Repetition
Memlex uses the FSRS algorithm to schedule reviews at the perfect moment - right before you forget. Learn faster, study less, remember more.
What is Spaced Repetition?
Spaced repetition is a learning technique that shows you information at increasing intervals, based on how well you know it. Material you struggle with appears more often; material you know well appears less often.
Learn new material
First review (before you forget)
Intervals grow as memory strengthens
The Science of Memory
Spaced repetition is backed by over 100 years of cognitive science research.
The Forgetting Curve
In 1885, Hermann Ebbinghaus discovered that we forget information at a predictable rate. Without review, you'll forget 70% of new information within 24 hours. Spaced repetition fights this by reviewing at optimal moments.
The Testing Effect
Actively recalling information (testing yourself) strengthens memory far more than passive review (re-reading notes). Flashcards leverage this by forcing active recall every time you see a card.
The Spacing Effect
Spreading reviews over time is more effective than cramming. Each review at the right moment strengthens the memory trace, leading to long-term retention instead of short-term recall.
Why FSRS is Better
Memlex uses FSRS (Free Spaced Repetition Scheduler), a modern algorithm that outperforms traditional methods like SM-2 used in Anki.
FSRS is more efficient at scheduling, meaning you spend less time reviewing while maintaining the same retention rate.
FSRS can optimize its parameters based on your review history, adapting to your personal memory patterns.
Set your desired retention rate (e.g., 90%) and FSRS schedules reviews to achieve exactly that target.
Validated on data from 20,000+ real users. Not theoretical - proven to work in practice.
What Can You Learn?
Spaced repetition works for anything that requires memorization.
Professional Exams
CPA, CFA, Bar, Medical Boards
Languages
Vocabulary, grammar, phrases
Academic Subjects
Science, history, literature
Skills & Trivia
Programming, music, geography
Start Remembering What You Learn
Join thousands of learners using Memlex to master new material with AI-powered spaced repetition.
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