What your student experiences, what you get to see, and how your family's data is treated — the three things a parent actually wants to know before handing a kid a math app.
Mr. Cadabra explains each step out loud in a warm voice, draws it on a whiteboard, and asks the next question instead of handing over the answer — the way a good human tutor works. He never does the homework for them: the board waits for your student's answer at every step.
And he stays on task: Mr. Cadabra's Classroom is math only. He won't chat about games or gossip, won't discuss other students, and politely refuses every attempt to pull him off topic — including the creative ones kids try.
The board never runs ahead of the student.
The parent view — read-only, always current. (Sample data.)
Your free parent account (at mrcadabra.com/family) opens a read-only view of each student: how they're doing, where to help next, real accuracy from real scored checks, and honest time-on-task — a minute counts only when your student is actually working, so "42 minutes today" means 42 minutes of math, not 42 minutes of an open tab.
📬 And once a week, the summary comes to you — see the preview below.
Every Friday: minutes of real work, units advanced, checks passed, new awards, and Mr. Cadabra's own written summary — the check-in a good tutor would give you, written automatically. Lands every Friday, with one-click unsubscribe.
Preview
Maya's week with Mr. Cadabra's Classroom
Your student talks with the tutor — a real conversation. Their speech is transcribed to text and the audio is deleted immediately: no recordings, ever. Typing works any time too.
We never sell student data and show no ads. We don't ask students for email, phone, photos, or location — a first name (any name you like) and a code is all it takes.
Your free parent account creates each student's login code, shows you their progress, and manages the plan — and you can have your student's data deleted any time with one email.
The full plain-language policy is at Parents & Privacy — written to be read, not scrolled past.
Take the two-minute sample lesson — you'll know immediately whether this clicks for your student.
At mrcadabra.com/family — add each student (a nickname is fine) and every one gets their own login code, dashboard, and pace. Your account is the read-only window on all of them.
A short placement check finds the right starting point; then units turn gold, badges land in the trophy case, and your parent view keeps you in the loop.
Email support@mrcadabra.com and the person who builds Mr. Cadabra's Classroom reads it. Homeschooling? There's a whole page for you.
Try a lesson free The homeschool pageYes — the demo lesson is a full interactive lesson with voice and the whiteboard, no account and no card. The parent walkthrough above shows you the dashboard the same way. Decide first, sign up second.
About five minutes. Create your free account at mrcadabra.com/family, add each student with a first name or nickname, and each one gets their own login code. We never ask students for email, phone, photos, or location.
A read-only view of each student: units mastered, real accuracy from real scored quizzes, honest time-on-task, and which problems were recently tricky. Every Friday the summary also comes to your inbox in plain language — and you can switch the email off (and back on) right from your account.
Yes. From your account you can steer — pick the unit you'd like your student centered on, and it becomes today's plan in the classroom. One honest caveat: if your student deliberately picks something else that day, their choice is respected. It's guidance, not remote control — motivation matters.
Voice audio is never stored — speech becomes text and the audio is deleted immediately. No ads, nothing sold, cookieless analytics, and a nickname is all we need. You can have your student's data deleted any time with one email. The plain-language policy is at Parents & Privacy.
Ten courses from first-grade math through college — Entry-Level Math all the way to Calculus and Differential Equations. A friendly placement finds the right starting point, and no grade level ever appears on the student's screen — an older student can rebuild fractions with dignity.
He won't hand them over. Mr. Cadabra is math-only, stays on task, and answers "just tell me" with the next right question, a hint, or a fresh explanation. Kids try — he's patient, warm, and immovable.
Any modern browser — computer, tablet, or phone (on a phone the whiteboard comes first and the mic docks at the bottom). Nothing to install. Headphones are nice for focus, never required.