PrepGraph diagnoses your understanding, chooses the next best step, teaches with guided questions, and adapts in real time—so you master more in less time.
The AI tutor that understands you, not just the syllabus
A student model tracks mastery, ability (θ), uncertainty (σ), confidence, and engagement to personalize every move.
A gating meta-controller chooses the right strategy moment-by-moment (Socratic, worked example, targeted practice, error fix, pacing tweak).
An error model detects misconceptions and gives contrastive explanations that change future answers—not just this one.
Affective detection senses confusion or frustration and adjusts tone, hints, and difficulty to keep momentum.
Simple, outcomes-first adaptive learning
A fast check maps where you are now.
A Session Card sets the focal concept, tactic, and time budget.
POMDP-Lite guides instruction; questions are IRT-matched to your ability for "just-right" challenge.
Errors are explained contrastively and reinforced with targeted practice.
The model updates mastery/ability; the plan adapts.
Real improvements you'll see and feel
You always know exactly what to do next and why.
Practice feels challenging but doable—no whiplash between too easy and too hard.
Get side-by-side "what went wrong vs. what works" explanations.
Your dashboard shows mastery growth by concept and exam readiness.
Focused on the exams that matter most
Choose the plan that works for you
For score maximizers
Families / Intensive Prep
Custom pricing
Everything you need to know
Two minutes to diagnose. Immediate next steps.