Most tutoring apps throw problems at kids. Cortex identifies exactly where understanding breaks down — and fixes it with the precision of learning science, not brute-force repetition.
We're onboarding in small batches to make sure every family gets a great experience. Drop your email and we'll notify you when your spot is ready.
By 3rd grade, 60% of struggling students have gaps that trace back to a single misconception they never got to correct. Other apps keep moving forward. We go back and fix the foundation.
Most platforms track progress by completion, not understanding. Kids advance before gaps compound into bigger ones.
73% of "completed" topics have sub-mastery retention after 30 daysWhen the reward is coins and badges, not growth, students optimize for the reward. Practice becomes performative.
Platform-controlled rewards reduce intrinsic motivation by 40%A percentage score tells you nothing. Parents need to know which concept is broken and what to do about it.
86% of parents say their app can't explain what their child doesn't understandA structured assessment maps your child's knowledge graph — identifying not just gaps, but their prerequisite root causes. We build a targeted remediation path using topological ordering.
Three layers working together: real-time difficulty tuning from rolling accuracy, SM-2 spaced repetition for review scheduling, and mastery decay detection to catch forgetting before it shows on a test.
Every error pattern maps to one of 17 documented math misconceptions. The system injects targeted diagnostic probes — and uses incorrect worked examples to produce the strongest correction effect.
We don't mark a skill "mastered" until retention testing 28 days later confirms it. Short-term memorization and genuine understanding look different to our system.
SM-2 schedules reviews at the moment of optimal memory retrieval — not randomly, not on a fixed weekly cycle. Skills drift differently for every child.
↑ Fractions & word problems scheduled for review today. Mastery retention, not time-on-task.
17 documented elementary math misconceptions. When a child makes a pattern of errors, we know which one it is — and target it specifically.
Every K-12 skill is connected in a dependency graph. Struggling with fractions? We trace it back to whether place value is solid first.
Emma loves dinosaurs? James is obsessed with Minecraft? Problems use their interests as context while teaching the same rigorous curriculum.
Daily practice, skill status, and parent-ready summaries stay connected so families can see what changed and what needs attention next.
See exactly which skill is broken, not just a percentage. Three engagement modes: hands-off (weekly summary), check-in, or hands-on with conversation prompts.
Kids earn coins through practice. You decide what coins buy: screen time, a trip for ice cream, an extra bedtime story. Not arbitrary in-app badges.
Run the free Gap Finder diagnostic in 20 minutes. You'll know exactly what's broken and why — before spending another dollar on tutors or apps that guess.
Join the waitlistJoin the waitlist and we'll send you one email when we have a spot open — no pressure, no marketing drip.