What review intervals does the scheduler use?

It spaces reviews at roughly one day, three days, one week, two weeks and one month after you learn a topic, with each review timed to land just before you would otherwise forget. If you enter an exam date, it fits the reviews before the exam and adds a final review a couple of days beforehand.

How do I add the review dates to my calendar?

After generating a schedule, use the 'Add to calendar' button to download a calendar file (.ics). Opening it adds all your review dates as all-day events to Google Calendar, Apple Calendar, Outlook or any standard calendar app.

Free Spaced-Repetition Revision Scheduler

Q: Do I need to sign up to use the scheduler?

No. The scheduler is completely free and requires no account, email or sign-up. It runs entirely in your browser, and nothing you enter is sent anywhere or stored.

Spaced repetition means reviewing material at spread-out, increasing intervals — just as it starts to fade — instead of cramming. This tool does the timing for you. It's free, needs no account, and runs entirely in your browser.

How this schedule works

The tool builds on one of the best-evidenced findings in the science of learning: memory strengthens when you retrieve information just as it's beginning to fade. Reviewing too soon wastes effort on material that's still fresh; reviewing too late means relearning from scratch. The sweet spot is a series of reviews at increasing gaps.

By default, it schedules reviews at roughly one day, three days, one week, two weeks and one month after you learned the topic. Each review should be active recall — close your notes and try to reconstruct the material from memory, then check what you missed. If you add an exam date, the tool fits the reviews into the time available and adds a final review a couple of days before the exam. If your exam is very soon, it will still give you a compressed schedule and a gentle warning that spaced repetition works best with more lead time.

In practice

Use this for material that's fundamentally about remembering — vocabulary, definitions, formulae, key facts. For skills like essay-writing or problem-solving, plenty of practice and feedback matters more than review timing. Full explanation in spaced repetition, explained simply.

Common questions

Do I need to sign up to use the scheduler?

No. It's completely free and requires no account, email or sign-up. It runs entirely in your browser — nothing you enter is sent anywhere or stored.

What review intervals does it use?

Roughly one day, three days, one week, two weeks and one month after you learn a topic, each timed to land just before you'd otherwise forget. If you enter an exam date, it fits the reviews before the exam and adds a final review a couple of days beforehand.

How do I add the dates to my calendar?

After generating a schedule, use "Add to calendar" to download a calendar file (.ics). Opening it adds your review dates as all-day events to Google Calendar, Apple Calendar, Outlook, or any standard calendar app.

What should I actually do on each review date?

Active recall: close your notes and try to reconstruct the topic from memory — say it aloud, write it out, or answer practice questions. Then open your notes and check what you missed. That gap is what to focus on next time.

A schedule only helps if the reviews actually happen

The hardest part of spaced repetition isn't the timing — it's doing the reviews when re-reading feels easier. Our parent guide covers how to build the structure that makes them stick, and enrolled students can use a supervised setting to keep the habit on track.

Spaced-Repetition Revision Scheduler

Your review schedule

How this schedule works

Common questions

A schedule only helps if the reviews actually happen

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