How Erudico works
Erudico is a free, mobile-first flashcard app built on spaced repetition. Instead of cramming, you review each card at the moment you are about to forget it, so facts move into long-term memory with far less effort. Study popular decks across many topics at your own pace. No account is needed to start browsing.
How it works
See a card
Pick a deck and Erudico shows you the front of a card. Try to recall the answer before you reveal it.
Reveal and grade
Flip the card and rate how well you knew it: Again, Hard, Good, or Easy. No typing, just an honest self-check.
Come back at the right time
Erudico's spaced-repetition scheduler picks the ideal moment to show each card again, right before you would forget it.
Frequently asked questions
Is Erudico free?
Yes. Erudico is completely free to use. You can browse every deck and study at your own pace without paying anything.
Do I need an account?
You can browse the decks and get a feel for the app without signing up. A free account is only needed when you want to review cards and have your progress saved and synced across your devices.
What is spaced repetition?
Spaced repetition is a proven study method that shows you each card just before you are likely to forget it. Cards you find easy come back less often, and cards you struggle with come back sooner, so you spend your time where it matters most.
What can I learn on Erudico?
Erudico has decks across many topics, including history, science, nature, geography, mythology, and general knowledge. New decks are added over time, so there is always something new to study.
Does Erudico work on my phone?
Yes. Erudico is mobile-first and runs right in your phone's browser. You can add it to your home screen for a full-screen, app-like experience, and a review session keeps working even if you briefly lose your connection.
What makes Erudico different?
Erudico uses modern spaced-repetition scheduling but keeps everything simple. There is nothing to install or configure: pick a deck, reveal a card, grade how well you knew it, and Erudico handles the timing for you.
Is my data private?
We only store what is needed to run your account and your study schedule: your email, an encrypted password, and your review history. We do not sell your data, and you can delete your account and all of its data at any time from the Delete Account page. Full details are on our Privacy page.
Ready to start?
Pick a topic and try your first card. It is free, and you can start without an account.