Math 99 vs MonoBrain

Right or wrong? An equation appears: 7 × 8 = 54. Decide in a split second: swipe the card or tap. Math 99 has been played since 2015; now it's rebuilt from the ground up. BLITZ Time is a pool: every right answer adds time, every wrong one takes it away. Chain right answers into combos, hit fever mode at a 10 combo and double your points. New question types unlock as you play: "Which is bigger?", missing sign, missing number. Your best score this week is kept separately. 99 STAGES Nine regions and 99 stages, from addition to division, from missing numbers to two-step problems. Earn three stars on each. REPORT CARD & MASTERY PATH Your speed and accuracy on every times-table fact, on a 10×10 report card. See your weak spots and work on them with untimed practice. The mastery path uses spaced repetition: each day you only review the facts that are due. DUEL Two players, one phone, the same question. The first right answer scores; a wrong tap loses a point. Give the stronger player a waiting time so kids and grown-ups can play on equal terms. DAILY The same questions for everyone, one try per day. Keep your streak going; miss a day and you can make it up the next. Want a reminder in the evening? Just switch it on. CLASSIC The original Math 99: a short time for each question, and the game ends at the first mistake. Your record is still on the old Game Center leaderboard. FOUR THEMES Ribbon, Chalk, Neon and Notebook, each with its own music, sounds and look. They unlock as you level up. AND MORE • Daily tasks, levels and a reward path • 30 achievements and a weekly cup • Game Center leaderboards • Plays offline Kids learn their times tables, grown-ups keep their minds sharp.

MonoBrain is a brain-training app built around classic number logic - the kind of puzzles you know from intelligence trainers, generated fresh every time you play. FIVE GAME MODES - Number Sequences: spot the hidden rule and continue the series - Magic Squares: fill the grid so that every row, column and diagonal adds up - Number Pyramid: each block is the sum of the two below it - Number Analogies: find the relationship between two numbers and apply it - Number Scale: symbols stand for numbers; crack their values from the equations FIVE DIFFICULTY LEVELS From Beginner to Genius: higher levels don't just use bigger numbers - they need more steps, cleverer combinations and second-order patterns. Every puzzle is generated so that it can be solved by pure logic, without guessing. TROPHIES AND STREAKS Answer correctly in a row to earn Bronze, Silver and Gold trophies for every mode and level. Trophies are earned one after another - first Bronze, then a fresh streak for Silver, then Gold. LEARN FROM EVERY TASK If you get one wrong, MonoBrain shows you the rule behind it. If you get it right, you can reveal the explanation on demand. - Thousands of possible puzzles, no repeats in a row - Short rounds of five tasks - perfect for a coffee break - Works completely offline - Available in English, German, Danish, Dutch, Spanish, French, Italian and Portuguese Free to play, supported by ads. Ads are never shown while you are solving a puzzle.