Smart Review uses spaced repetition — a memory technique that brings a question back right before you'd forget it, at growing intervals. Get one right and it reappears further out; miss it and it comes back sooner. Over a few weeks this moves material into durable long-term memory with far less total study time.
How to use it
Go to Study → Smart Review.
Answer the questions it queues for you today — these are the ones due based on your past performance.
Come back daily. A short daily Smart Review session is more effective than a long weekly one.
Smart Review queues exactly the questions due for review today.
Rating how well you recalled it
Every card works the same way: read the question, tap Show answer, then be honest about how it went by tapping one of four buttons:
Again (Forgot) — you didn't recall it. The card comes back very soon (today).
Hard (Tough) — you got it, but it was a struggle. It comes back sooner than usual.
Good (Got it) — you recalled it correctly. It comes back at the normal next interval.
Easy (Knew it) — you knew it instantly. The interval jumps further out.
Those four ratings feed the SM-2 spaced-repetition algorithm, which uses them to schedule each question to reappear right before you'd forget it. Rate yourself honestly — the more accurate you are, the better the schedule works. It's a study aid, so there's nothing to game.
Readiness
Your dashboard shows a readiness estimate based on your recent accuracy and coverage, so you get an honest sense of whether you're on track for test day. Smart Review is separate from — and complements — the 5-step method.
Your Exam-Readiness Score looks at your real practice history on the exam you're currently studying and blends three signals into one number. It's cumulative — your whole history counts, so going back and mastering questions you used to miss pulls ...
Open Review to drill the questions you've missed or flagged. Flagging (the ? on any question) marks something to revisit; the Review and Smart Review modes prioritize your weak points so study time goes where it helps most.
Instead of a time-limited trial, we keep a permanently free plan: a 40-question preview for your exam, the Question of the Day, and the glossary and ACS-code tools. There's no countdown and no card required. Upgrade to Premium whenever you're ready ...
A simple, effective routine: (1) work the 5-step method through a chunk of new material, (2) clear your Smart Review due cards each day, and (3) take an Exam Simulation once or twice a week to gauge readiness. Consistency matters more than marathon ...
Premium is available monthly ($19.99/mo), quarterly ($49.99/quarter), or annual ($179.99/year) — the annual plan is the best value (about 25% under the monthly run-rate). All tiers unlock every exam, the full question bank, the 5-step method, Smart ...