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About Koydo SAT
Koydo's Digital SAT prep gives you adaptive practice that mirrors the real two-module test, a friendly AI tutor that explains every answer, full-length mock exams, and a clear readiness score — so test day feels familiar, not foreign. It's made by Koydo, a learning company building beautiful, evidence-based study tools.
We follow the official Digital SAT framework and mirror its adaptive, two-stage format. See exactly what we align to on our sources page.
Spaced repetition and active recall are built in, so your study time goes where it counts and the timing is handled for you.
Our readiness score is an estimate from your practice, on the real 400–1600 scale — never a promise. We tell you where you stand and what to work on next.
A calm interface and an AI tutor that explains, not lectures. Test prep should lower your stress, not add to it.
Who writes the questions
Koydo Lyceum writes and reviews our practice questions and explanations against the official Digital SAT framework, checks them for accuracy, and keeps them current as the test evolves.
Koydo is an independent study aid. We are not affiliated with, endorsed by, or sponsored by the College Board, which makes and administers the SAT. “SAT” and related marks belong to their owners and are used only to describe what we help you prepare for. Always confirm current test rules, dates, and policies on the official College Board sources, which we link from our sources page.