ProgniaPrognia
Spaced Repetition

Remember At Exam Strength, Permanently

Ward schedules every review just before you would forget — SM-2 spacing, confidence calibration on every answer and a mastery engine that knows a vignette is harder than a definition.

Review Queue
24 due today

Due now · Cardiology

Which antihypertensive class is contraindicated in bilateral renal artery stenosis?

Next reviewSM-2 · ease 2.5
RecallReview 1 of 4 · next in 1 day
reviewed on schedule no reviewdays →

The problem

Cramming Works Until It Doesn’t

Massed studying feels productive and fades within days. Distributed practice is one of the most replicated findings in learning science — Ward builds it into every session.

  • 1

    Rereading rewards the wrong thing

    Familiar material feels known. Recognition is not recall — and exams test recall.

  • 2

    Fixed review schedules waste time

    Reviewing everything equally often means overstudying what you know and understudying what you don’t.

  • 3

    Confidence goes unmeasured

    Two students answer correctly; one guessed. Most apps score them the same — clinical practice will not.

Scheduled by the algorithm

Reviews Land Just Before You Forget

Ward schedules with SM-2: a successful card returns after 1 day, then 6 days, then at intervals scaled by its ease factor. Struggling cards return sooner; solid cards drift further out.

  • First interval 1 day, then 6 days
  • Later intervals scale with each card’s ease
  • Ease never drops below 1.3 — no death spirals
  • Three-point grading: failed, almost, knew it

Aortic stenosis — murmur profile

interval × ease
Today
1d
6d
15d
38d
Failed → back to 1 day Ease floor 1.3 — every card can recover

Confidence is part of the answer

Calibration Is A Clinical Skill

Every answer includes how sure you were — Guessing, Uncertain, Fairly sure or Certain. Being confidently wrong costs extra; being unsure but right is gently rewarded. Knowing what you know is trained, not assumed.

  • Four confidence levels on every answer
  • Confidently wrong costs more than honestly unsure
  • Unsure-but-right is gently rewarded
  • Your calibration is measured over time

Question

Target INR range for a mechanical mitral valve prosthesis?

Your answer: “2.5 – 3.5”

How sure were you?

Correct · Uncertain

Unsure but right — honesty pays off

Gently rewarded

Difficulty-aware mastery

A Vignette Counts For More Than A Definition

Mastery in Ward blends answer score, confidence calibration, recency, question difficulty and streak. Clinical vignettes and diagnosis-to-treatment questions weigh harder than basic recall — because they are.

  • Mastery blends score, confidence, recency, difficulty and streak
  • Clinical vignettes weigh harder than basic recall
  • Deck mastery = cards with two or more successful repetitions
  • Progress that reflects real competence

Same correct answer, different weight

Basic recall

“Define stroke volume”

Diagnosis → treatment

“NSTEMI confirmed — first antithrombotic step?”

Clinical vignette

“58-year-old, crushing chest pain, ST elevation in II, III, aVF…”

Mastery blends five signals

ScoreConfidenceRecencyDifficultyStreak

Deck mastery = cards with two or more successful repetitions

Never lose the thread

Momentum, Built In

A due queue tells you exactly what today asks of you. Streaks keep the habit visible, and interrupted sessions resume where you stopped — between lectures, on the train, after a shift.

  • A due queue that sizes today’s work
  • Streaks that make consistency visible
  • Resume any session midway
  • Daily study reminders keep momentum going

24

Due today

18 days

Streak

18:00

Reminder

Nephrology — Electrolytes

Resume at card 9 of 21 — right where you stopped

43%

Due by deck

Cardiology12 due
Pharmacology8 due
Nephrology4 due

Cramming vs. Spacing

The difference between studying hard and studying on schedule.

Massed studying

  • Reread everything before the exam
  • Every card treated the same
  • Right or wrong, nothing else
  • A definition counts like a vignette
  • Progress guessed from gut feeling
  • Knowledge peaks on exam day, then fades

With Ward

  • Review each card just before you forget it
  • Intervals scale with each card’s ease
  • Confidence recorded with every answer
  • Difficulty weighs into your mastery
  • Mastery trend tracked over time
  • Recall maintained long after the exam

A Session In Four Beats

What spaced repetition feels like in Ward on an ordinary Tuesday.

  1. 1

    Open the queue

    Ward shows what is due today — nothing more, nothing less.

  2. 2

    Answer and rate

    Grade yourself failed, almost or knew it — and log how confident you were.

  3. 3

    Watch it reschedule

    Each card’s next appearance is set by its ease and your answer.

  4. 4

    Track mastery

    Your mastery trend shows how recall holds up over time.

Connected to the Prognia ecosystem

Every Review Feeds The Bigger Loop

Answers become mastery, mastery exposes weak topics and weak topics decide what Ward recommends next.

Built For Every Stage Of Medicine

One platform, different workflows — Ward grows with you from your first anatomy exam to lifelong clinical practice.

Medical Student

Build foundations with flashcards, quizzes and guideline summaries mapped to your curriculum and exams.

Resident

Check recommendations on the go, drill weak areas between shifts and prepare for board assessments.

Healthcare Professional

Stay current with updated guidance, review medications in context and keep clinical knowledge sharp.

Questions about Spaced Repetition

Study On Schedule. Remember On Demand.

Let SM-2 pick the moment, add your confidence to every answer and watch mastery build — one well-timed review at a time.

Free forever for students · No credit card required