Spaced repetition
Reviews that arrive right before you forget.right before you forget.
Every card you make gets a schedule: practice it today, see it again in three days, then seven, then fourteen. Mento times each return to land just before the memory fades — and bends the whole plan around your exam dates.
The forgetting curve
Four short reviews beat one long cram.
How much you remember
One card, 16 days
Cramming works for about a week — that's the forgetting curve doing its job. The fix has been known for a century: bring the material back just as it starts to slip, and each return makes the memory last longer. The hard part was never the science; it's that nobody wants to run the schedule by hand. So Mento runs it for you.
How Mento schedules
Three horizons, one habit.
Mento studies with you on three timescales at once — and each one has its own surface in the app.
Today
Daily practice: a short queue that mixes due reviews with new material and keeps your streak alive. Show up, clear it, done.
Your exam
A date on a topic bends the schedule: nothing lands after the exam, reviews compress as it approaches, and the final days sweep the whole topic.
Forever
Long-term reviews arrive right before you'd forget — a few cards a day keep everything you've learned within reach for good.
The ladder
A schedule you can actually explain.
No hidden ease factors, no guesswork. Answer a card correctly and its interval climbs a simple ladder; miss it and it starts over. That's the whole rule — and it's enough.
1 → 3 → 7 → 14 → 30 days
Each correct answer moves a card one rung up the ladder — out to a month, then two, then four. Every rung is a gap your memory has actually proven.
One step per day
Answering a card five times in one sitting doesn't buy five days of staying power. Only days apart count — so mastery in Mento means it stuck, not that you were on a roll for ten minutes.
Right or wrong — that's it
No rating your own confidence on a 1-to-4 scale after every card. The answer was right or it wasn't; the schedule does the rest.
A miss means tomorrow
Getting a card wrong isn't a penalty — it goes back to day one, right when relearning is cheapest. Missing a day doesn't punish you either: reviews wait for you, quietly.
A plan you can finish
Set your daily review pace — 25, 50, 100, or no limit — and the app shows a completable plan for today, never a 2,000-card wall. The backlog waits; you chip at it at your speed.
Your memory, on the record
Every review is logged. Watch your retention, reviews per day, and how your cards climb the ladder — proof the system works, not a black box.
Exam intelligence
A date that bends the whole schedule.
Spaced repetition apps pretend time is infinite. Students have exams. Put a date on a topic and every card in it starts planning backward from that morning.
Exam scheduler
Set the date. The plan reshapes itself.
Cell Structure — 42 cards
Exam · May 12Nothing lands too late
A card's next review is never scheduled past your exam — intervals cap themselves so everything gets seen before the day that counts.
The final sweep
In the last days before the exam, Mento sweeps the entire topic regardless of schedule — one full pass, right when it matters most.
Readiness you can read
Every exam shows where you stand — solid, still learning, struggling, unseen — with a suggested daily pace to finish new material in time. And when it's over: keep the topic fresh, or let it rest.
No guilt by design
Reviews are offers, not debts.
Come back from a week off in most spaced-repetition apps and a red “347 overdue” is waiting to scold you. In Mento a review is an offer, not a debt: due cards are simply ready when you are, the calendar shows them as capacity — never in red, never labeled overdue — and today's plan stays finishable. The system is patient, so the habit survives.
With Pro
Steering, for when you want the wheel.
Reviews, daily practice, and every study mode are free forever. Pro adds precision steering on top of Mento's memory of you.
Focused practice
Point a session at exactly what Mento's tracking shows: weak spots, brand-new material, cards you're close to finishing — or any tag, across topics.
Struggling-card rescue
Cards you keep missing get flagged instead of silently recycled — and AI offers to split or rewrite them, because a stubborn card is usually a badly cut card.
The review loop itself is free forever — spaced repetition, daily practice, streaks, and stats. One dated exam at a time is free too; running several at once and steering practice by focus are part of Mento Pro. See pricing →
Learn it once. Keep it.
A transparent schedule that brings every card back right before you'd forget it. Free to start.