Remember everything you learn
BrainLS uses spaced repetition to help you master any subject. Create flashcards with rich markdown, study smarter, and track your progress over time.
Everything you need to learn effectively
Spaced Repetition
Cards appear right when you're about to forget them. Study less, remember more.
Rich Flashcards
Markdown, images, cloze deletions, keyboard shortcuts, and multiple choice.
Folders
Collaborate with classmates or colleagues. Share decks and study together.
Public Decks
Browse community decks or share your own with the world.
The Forgetting Curve
Without review, you forget most of what you learn within days. Spaced repetition schedules reviews at the exact moment your memory starts to fade — each time, the interval grows longer until the knowledge is permanent.
Skill up, not deskill
Most AI tools give you the answer. BrainLS AI makes sure you actually understand it. Every feature is designed to deepen your knowledge, not replace it.
Dynamic AI Questions
Stop drilling the same question until you memorize the shape of the answer instead of the concept. AI generates fresh variations and real-world problems so you learn to apply what you know — not just recognize it.
Suggested Cards
Studying a topic and realize there are gaps? AI suggests cards you're missing and can spin up one-off topic decks on the fly — so you never have to leave your flow to fill in the blanks.
Fact Checking
Studying outdated or incorrect cards does more harm than good. AI flags questionable content and verifies facts so you can trust what you're committing to memory.
AI Explainers
Hit a card you don't understand? Get an instant, plain-language explanation without leaving your study session. Learn the “why” behind the answer, not just the “what.”
Anki Compatible
Already use Anki? Bring your decks and study progress over to BrainLS with a simple import. And if you ever want to go back, export everything to Anki format — no lock-in, ever.
How Does Spaced Repetition Work?
Instead of cramming, spaced repetition schedules reviews at increasing intervals — right before you forget. It's the most efficient way to move knowledge into long-term memory.
Learn
Study a new card for the first time. Rate how well you knew the answer.
Review
The card reappears after a calculated delay — 1 day, then 3, then 7, and so on.
Remember
Each successful review pushes the next one further out. Hard cards come back sooner.
Simple, Transparent Pricing
Start for free. Upgrade when you need AI-powered features or more storage.
Free
Everything you need to get started with spaced repetition.
- Unlimited decks & cards
- Spaced repetition (FSRS)
- Markdown & images
- Public & shared decks
- 5 AI uses/mo
- 1 GB media storage
AI Basic
Add AI to your study workflow.
- Everything in Free
- AI card generation
- AI explanations
- 250 AI uses/mo
- 10 GB media storage
AI Pro
For power users who study seriously.
- Everything in Basic
- Priority AI models
- Advanced analytics
- 2,500 AI uses/mo
- 50 GB media storage
Enterprise
For teams and organizations with custom needs.
- Everything in Pro
- Unlimited AI uses
- Unlimited storage
- SSO & admin controls
- Dedicated support & SLA
Ready to get started?
Join BrainLS and start building your knowledge, one card at a time.