Spaced Repetition in Neurako

How the review queue works in Neurako — card states, rating buttons, interval previews, cram mode, and daily study habits.

In Neurako, spaced repetition means reviewing cards one at a time from a schedule the app maintains for you. Each review ends with a four-button rating — Again, Hard, Good, or Easy — that directly updates the card's next interval. Show up regularly, rate honestly, and the algorithm handles the rest.

Key Takeaways

Four rating buttons appear after every card: Again, Hard, Good, Easy — each shows its resulting interval before you choose - Cards move through four states: New → Learning → Review → Relearning — most long-term study happens in Review - Cram mode lets you review any deck without affecting the schedule, available on all plans - Daily short sessions outperform occasional long cramming sessions for long-term retention

What a review session looks like

Open any deck and tap "Study" — or tap the global "Study Now" button to review all cards due across every deck at once. Cards appear one at a time.

Step 1 — Read the front. The front of the card contains the question or prompt. Try to recall the answer before flipping.

Step 2 — Flip. Tap the card or the "Show Answer" button to reveal the back.

Step 3 — Rate yourself. Four buttons appear at the bottom of the screen. Each button shows the interval that rating will produce before you tap:

Rating	When to use	Example interval
Again	You forgot or got it wrong	10 minutes
Hard	You remembered, but it took real effort	1 day
Good	You remembered correctly with normal effort	4 days
Easy	Instant recall, no hesitation	2 weeks

The exact intervals shown are calculated by FSRS based on the card's current stability and difficulty. They vary per card. See the FSRS Algorithm page for how those numbers are computed.

Step 4 — Continue. The next due card appears. When the queue is empty, the session ends and you see a summary screen.

Interval preview

Before you tap a rating button, Neurako shows you the projected next review date for each option. This transparency is intentional — you can see the trade-off between ratings and make an informed choice. Rating "Easy" when you're not sure will push the card out too far and set you up for a forgotten review later.

Rate based on actual recall, not desired outcome. The algorithm is calibrated to a 90% target recall probability — honest ratings give it accurate data to work with.

Card states

Every card in Neurako is always in one of four states, which determines how the scheduler treats it:

New — The card has never been reviewed. On first study, it enters a short initial learning sequence with intervals measured in minutes. You'll see new cards interspersed with your regular review queue depending on your deck settings.

Learning — The card is in its initial learning phase, with reviews spaced minutes to hours apart. It stays in this state until you rate it Good or Easy enough times to graduate it to Review.

Review — The card has graduated to long-term scheduling. FSRS schedules Review-phase cards days, weeks, or even months apart depending on their stability. This is the state where spaced repetition does most of its work.

Relearning — When you rate a Review-phase card Again, it lapses back to Relearning. The card goes through short reinforcement steps before returning to the Review queue with a reduced (but non-zero) stability value. Lapsing isn't failure — it's the algorithm catching a card before it falls out of memory entirely.

In Neurako

When you have cards due across multiple decks, the review queue interleaves them. Switching between topics during a session is a form of interleaving — a learning technique with solid retention evidence. You don't need to do anything special to get this benefit; it's built into the queue.

Undo

If you tap a rating button by mistake, you can undo the last review within a short time window. The undo button appears briefly after rating a card, and also on the session summary screen.

Cram mode

Cram mode lets you review all cards in a deck regardless of their scheduled due date. Cards reviewed in cram mode are not counted as real reviews — they don't affect FSRS stability or scheduling.

Cram is useful when:

You want to do a quick refresher before an exam without disrupting your long-term schedule
You want to run through a new deck to get familiar with the material before committing to the full FSRS queue
Someone else wants to use your device to study a deck

Quiz mode

Quiz mode presents cards as multiple-choice questions rather than free-recall flips. The app generates distractor options alongside the correct answer. Quiz mode is a useful variation when you want a lower-stakes way to engage with material, or when testing yourself across a large topic quickly.

Quiz mode is available on all plans.

Building a daily habit

Short daily sessions consistently outperform long infrequent ones for long-term memory. A 10-minute review every day keeps your queue manageable and your recall high. A single 60-minute session every two weeks often means reviewing cards that are already overdue — and seeing a high Again rate as a result.

Retention Calculator

Estimate the review load that comes with a higher target recall

Higher desired retention means shorter intervals and more daily reviews. Lower targets reduce workload, but you accept more forgotten cards. The exact numbers vary by learner and card quality, but the trade-off is always real.

Estimated daily reviews

for a 600-card deck at 90% target retention

Deck size600 cardsDesired retention90%

FSRS Algorithm

Understand how Neurako calculates intervals using stability, difficulty, and retrievability.

Spaced Repetition Explained

The science behind spaced repetition and why it works.

Learning Insights

Track your card states, mastery, and upcoming review workload.

Ready to turn this into a study ritual?

Start studying with Neurako