Math MagicianMental Math
Do the math in your head, faster than you can reach for a calculator.
Learn the same tricks lightning-fast calculators use, watch each one worked out step by step, then practice until it's second nature. Like a magic trick, but you know how it's done.
Learn the trick. See it work. Make it yours.
Learn the trick
Short, clear lessons across twelve stages, from place value and carrying to the ×11 shortcut, squaring numbers near 100 and smart estimation. Beginner primers ease you in.
Watch it unfold
"How it's done" animates every step, so you see which number to hold in mind and when to bring it back. Turn on voice-along to hear each step.
Practice at your edge
Problems get a little harder after a streak and easier after a slip, so you're always working right where you improve fastest.
A complete mental math guide
Twelve stages of step-by-step lessons: left-to-right addition, the ×11 shortcut, squaring near 100, divisibility rules and estimation, then on to number patterns, algebra and geometry. The whole guide is free.
Practice that adapts to you
Fresh questions for every trick, made new every time: 37 trick drills, plus 22 more for the number-pattern, algebra and geometry lessons. A mistake bank quietly collects the problems you miss and brings them back for review.
The 60-second Arcade
Feeling sharp? Jump into a one-minute blitz, build combos, level up mid-round and chase your high score on four tracks: Mixed, Add & Subtract, Multiply and Squares. One free game a day, unlimited with Pro. The weekly league is played offline against made-up players, so no strangers and nothing sent.
Flashcards that remember for you
Spaced review brings each card back right before you'd forget it. Track mastery trick by trick, keep a daily streak, set a goal and get a gentle daily reminder if you want one.
For anyone who wants a quicker head for numbers
- Students sharpening their arithmetic.
- Adults keeping their minds quick.
- Anyone ready to ditch the calculator for everyday sums.
Purchases sit behind a quick grown-up check, so younger players can't buy by accident. A parent view, behind the same check, shows how your child is doing this week and what to practice next.
Mostly free. Pro when you want more.
Lessons, every drill, flashcards and review are free for good. Pro adds unlimited Arcade (one free game a day without it), custom workouts, times-table practice and streak repair, through Google Play.
Monthly
Starts with a 7-day free trial for new customers. Cancel anytime in Google Play.
Yearly
Less than $1 a month. Cancel anytime in Google Play.
Lifetime
Pay once, keep it. Never renews.
US prices. Google Play shows the price in your local currency.
Questions
Do I need to be good at math already?
No. Beginner primers start from place value and carrying, and every trick is shown step by step before you're asked to use it.
Does it need the internet?
No. Lessons and practice work offline. The app only goes online to check, buy or restore Pro (a quick check when it opens) and, if you leave "Share anonymous usage" on in Settings, to send anonymous usage counts (never your name, email or answers).
Do I need an account?
No. There's no sign-up and no ads. Your practice and progress stay on your device.
How does the free trial work?
The trial is on the Monthly plan, for new Google Play customers: 7 days of Pro free, then $2.99 a month. Cancel in Google Play before the 7 days end and you won't be charged.