Whatever you're trying to remember, Kioku Brain meets you where the volume gets brutal.
Drop in a Spanish article — get vocab cards. Cross-link them with English equivalents. Recall words in either direction without writing each card by hand.
Anki has 30k cards in your deck. Migrate in one click, then let AI generate fresh angles on tough chapters so the same fact never gets too easy.
Statutes, case names, doctrine tests. Paste an opinion, get the holding, the rule, and the dissent as 3 separate cards in seconds.
Account names, product specs, partner contacts in JP / EN / ES. Cross-lingual links keep the same person reachable in every language you speak.
Other SRS apps stop at recall. Kioku Brain rebuilds memory.
Learn a concept in English, recall it in Japanese, link it to its Spanish equivalent. Kioku Brain auto-discovers semantic links across languages with multilingual embeddings.
Same fact, fresh angle every time — definition, example, fill-in-blank, contrast. Beats rote memorization that fools you into thinking you know the answer.
Every card becomes a star. Your knowledge takes physical shape — constellations form as you learn, dim where you forget, glow where you've mastered. Memory is finally something you can see.
A short morning digest with 3 cards due today. Hit "remember" or "forgot" right from the email — or skip it and we'll quietly try again tomorrow.
Drag to orbit. Hover a star to see the card. Magenta lines bridge two languages.
1 · What you put in
Anything you want to remember — a vocab word, a definition, a fact from yesterday's meeting. Type it manually, or paste a paragraph and let AI split it for you.
2 · What happens
Each item becomes one star. Same concepts in different languages auto-link as magenta bridges. Your cosmos grows literally and visibly as you learn.
3 · When it's useful
Studying for exams, learning a new language, onboarding to a new project. The cosmos shows what you've mastered and what's still fragile — at a glance.
Demo: 7 sample cards · 4 languages · cross-lingual links highlighted
Try free. Upgrade when it sticks.
$0
forever
$12.99/mo
cancel anytime
$99/yr
$8.25/mo equivalent
$249
one-time
Anki is excellent at SRS scheduling, but you have to write every card by hand and translate every concept yourself. Kioku Brain auto-generates cards from your source material in any language and finds cross-lingual links automatically.
The mobile / PWA review queue works offline. New AI generations and cross-lingual link discovery require an internet connection.
Yes. Upload .apkg or .csv on your dashboard. The first 500 cards within 30 days of signup don't count against your free quota — they're our welcome gift.
Your cards are stored encrypted on Cloudflare D1 and Vectorize, EU/JP/US edge. We never sell or train on your data. Full export available anytime in JSON.
14-day money back, no questions asked. See our refund policy.
The Kioku Chrome extension lives inside ChatGPT/Claude/Gemini and saves snippets straight from your AI chats. Kioku Brain is the standalone study app: it ingests anything (text/URL/PDF), schedules reviews with FSRS, and visualizes everything as a 3D cosmos. The two share the Kioku family but solve different problems.
Your cards stay yours. After cancellation you keep all data and can review existing cards forever. New monthly limits revert to Free (50 new cards/month, 5 AI generations/month). You can re-upgrade anytime without losing progress.
Prices on this page are shown in USD and exclude VAT/sales tax. Stripe automatically applies the correct local tax (e.g. Japan consumption tax 10%) at checkout based on your billing address. The total before payment is always shown clearly.