Mathy vs Blitzcalc

Train your mental math for case interviews, school, or just for the fun of getting faster. Mathy is a fast, focused mental math trainer built for the numbers that show up when speed matters: consulting case interviews, exams, homework, business estimates, and everyday brain training. Whether you’re preparing for consulting or finance case interviews, class, or your own personal best, Mathy helps you turn tricky calculations into reflexes. Practice big round numbers, percentages, market-share math, clean division, fraction simplification, and zero-tracking until they feel natural. Work through drills across: - Addition and subtraction, from warm-ups to large-scale numbers - Multiplication with clean, practical values - Division with answers that land cleanly - Percentages, including percent-of-a-number, percent-of-a-percent, and reverse percentage problems - Market-share style calculations - Fraction simplification Choose the practice mode that fits your moment: - Timed Round to build speed under pressure - Fixed Set of 10, 20, or 50 questions for deliberate practice - Endless Mode for warm-ups, flow, or long training sessions Set your difficulty level, or let Mathy surprise you with a random level. Keep it light, make it serious, or push yourself until your brain starts seeing patterns automatically. After every session, Mathy shows a clean results table with your answer, the correct answer, and how long each question took. You’ll see where you’re improving, where you’re slowing down, and when you beat your personal best. Tap any question to see how Mathy would solve it: a clear, step-by-step mental-math strategy that breaks the problem into the rounding, multiplying, and adjusting a fast solver would actually do in their head. It's not just the right answer; it's the shortcuts to get there. Mathy is fully offline, private, and built for speed. No accounts. No tracking. No data leaving your phone. Just instant feedback, zero lag between questions, and a native iOS experience that gets out of your way. For interviews, school, or the simple satisfaction of sharper mental math: open Mathy and start drilling!

Blitzcalc trains the way you actually get faster at mental maths: one technique at a time, measured, and adapted to you. QUESTIONS MADE FRESH, NEVER MEMORISED There is no deck. Every question is generated, so the numbers change while the skill stays the same - the only way to know you have really learned it. IT MEASURES, IT DOESN'T ASK A short adaptive check finds your level from how you actually answer, including how long you take. No self-assessment, no picking a grade and hoping. 371 SKILLS ACROSS 12 PACKS Whole numbers, fractions, decimals, percentages, powers and roots, algebra, measurement, probability and more - sequenced so each one rests on the last. THE MISTAKE LAB Blitzcalc names the mistake behind your errors, not just which questions you got wrong. Train a named pattern and it tracks whether the fix actually held a day and three days later. MASTER CLASSES A class takes a single technique - splitting instead of carrying, say - and teaches it on purpose: the method first, then guided practice, then speed. THE BLITZ EXAM (Pro) Every other screen adapts to you, which is why none of them can grade you. The Blitz Exam gives that up on purpose: a fixed 20-question paper across everything you have practised, scored out of 100 - and kept, so a single number becomes a trend you can watch climb. BLITZCALC PRO The Blitz Exam, the Diagnosis (the one mistake behind most of your errors, across every topic), Review Sets with a goal and an exam date, full manual mode over all 371 skills, unlimited practice, and the advanced statistics. Free to use every day. Pro is a subscription; there is a free trial and you can cancel any time. Terms of Use (EULA): https://economic-rugby-9a9.notion.site/Blitzcalc-Terms-of-Use-39ebe0b6b7cb81398bacdd28ab91c5db