A learning loop built to make practice stick.
Kimsa generates every problem in the browser, grades it exactly, and names the mistake behind every wrong answer. No question bank to exhaust, no calculator, no guesswork.
Generate → Answer → Diagnose → Master
Generate
Unlimited sets, generated fresh per topic and difficulty level — never a recycled question bank. Calculator-free, exact answers.
Answer
Multiple-choice or typed. Graded instantly and exactly — equivalent forms accepted, no false marks.
Diagnose
Each wrong choice is a named misconception, so the student sees why, with a targeted explanation.
Master
Mastery + spaced repetition track real, unaided fluency and resurface weak topics before they fade.
Distractors that diagnose
Most apps mark you wrong. Kimsa tells you which mistake you made. Every wrong option is engineered to match one specific, named student error — so results explain the misconception and drive what to practice next.
Tap the wrong answers to see it →
Solve x² − 5x + 6 = 0
Assessment, mastery & reporting — included
Timed exams
Full sample exams per track — adaptive SAT modules, penalty-scored SSAT, no-penalty ISEE, the two-part HSPT, and verbal & reading sittings — with honest readiness bands.
Readiness prediction
A blueprint-weighted estimate of how a student would score, updated as they practice and test.
Mastery & spacing
Tracks clean, unaided, fluent solves — not lucky guesses — and schedules review so skills stick.
Parent / teacher reports
Strengths, recurring mistakes, time-on-task, and a plain-English readiness verdict.
Web & iOS
The same engine ships as a web app and a native iOS shell.
Works offline
Problems generate on-device — no server round-trip, no per-question cost, no connection required.