# Crash Math Academy — Crash Math Training > Crash Math Training (iPhone/iPad app by Brian Watson.) - Source: https://appshunter.io/ios/app/crash-math-academy/id6759629050 (this page in markdown: same URL + `.md`) - Developer: [Brian Watson](https://appshunter.io/developer/1878233504) - Category: Education, Reference - Price: $9.99 - Age rating: 4+ - Requires: iOS 15.1 · 37 MB - Languages: American English - Released: 2026-02-26 - Data updated: 2026-06-01 - User reviews in markdown: https://appshunter.io/ios/app/crash-math-academy/id6759629050/reviews.md ## What is Crash Math Academy? You signed up for the crash reconstruction course. You paid the tuition. You booked the hotel. Then someone told you there would be math. Crash Math Academy was built for exactly this moment. This app takes you from basic addition all the way through advanced collision analysis formulas — one step at a time, in plain language anyone can follow. No math degree required. Just clear explanations, real crash examples, and the exact TI-30Xa calculator keystrokes for every problem. Created by a current law enforcement officer working in North Texas with over 35 years of collision investigation experience. Brian Watson 109, LLC. 7 PROGRESSIVE SECTIONS — 830 PRACTICE PROBLEMS Math Foundations — 13 lessons: basic operations, fractions, percentages, exponents, scaling, PEMDAS, algebra, formula rearrangement, and quadratics Pythagorean Theorem — Right triangles, distance, and scale diagram math Trigonometry — Sine, cosine, tangent, angle of impact, grade, and superelevation Unit Conversions — mph to fps, feet to meters, time-distance analysis Physics — Newton's Laws, kinetic energy, momentum, friction, and drag factor Core Crash Formulas — Skid speed, vault, pedestrian impact, yaw, truck/trailer, braking efficiency, e-scooter, bicycle, and height measurement Advanced — Delta-V, CRASH3, coefficient of restitution, closing speed, BEV, PDOF, inline momentum, angle collision X-Y components, and T-bone analysis Every problem generates fresh numbers each time — you learn the math, not memorize answers. Every solution shows detailed step-by-step work. TI-30Xa CALCULATOR KEYSTROKES Every lesson includes exact button-by-button keystrokes for the TI-30Xa — the same calculator used in reconstruction courses nationwide. 39 FLASH CARDS WITH VOICE READING Tap to flip between formula and explanation. Tap the speaker icon to hear the formula read aloud with a high-quality natural voice. 94 FORMULA REFERENCE CARDS A complete formula library in 8 sections. Every card shows the formula, defines every variable, and walks through a worked example. PRINT AND PDF EXPORT Export flash cards and formula cards to PDF. Pick exactly which cards to include. Print study sheets for class or pin formulas to your wall. QUIZZES AND 100-QUESTION FINAL EXAM Pass each section quiz to unlock the next. Take the 100-question practice exam pulling from all unlocked sections — the closest thing to your certification math test. IMPERIAL AND METRIC UNITS One tap switches the entire app between Imperial and Metric. Every lesson, formula, problem, flash card, quiz, and exam adapts. Imperial default for U.S. courses. Metric for investigators worldwide. PROGRESS TRACKING Track completed lessons, quiz scores, problem history, and overall readiness. The app identifies your weak areas. 100% OFFLINE — ZERO DATA COLLECTION No internet. No login. No ads. No tracking. Everything runs on your device. Your data stays on your phone. WHO THIS APP IS FOR Officers heading to their first crash course — no math background needed. Reconstructionist refreshing before recertification. Investigators worldwide. Anyone who was told "there will be math" and wants to show up ready. You are about to walk into the hardest math class of your career. Crash Math Academy makes sure you walk in ready. ## Chart rankings - #195 in Top Paid · Education (US App Store) ## Version history (last 2 releases) ### 1.1.0 — 2026-02-27 What's New in Version 1.1.0 NEW: User Guide A complete instruction manual is now available in the More tab. Thirteen easy-to-read sections walk you through every feature of the app — from getting started, to practice mode, to printing study materials. Tap any section to expand it and learn how to get the most out of CrashMath Academy. IMPROVED: Core Crash Formulas Lesson Order The 15 lessons in Section 6 have been reordered for a smoother learning experience. Concepts now build on each other step by step: Skid Marks → Braking Efficiency → Combined Speed → Grade Adjustments → Unit Conversions → Radius & Yaw → Vault (3 lessons) → Pedestrian Analysis (3 lessons) → Truck & Trailer. IMPROVED: Simplified Lesson Explanations Every lesson explanation has been rewritten in plain, everyday language with real-world analogies. Formulas are broken down so clearly that anyone — from a first-day student to a courtroom juror — can follow along. ### 1.0 — 2026-02-26 No release notes. ## More apps by Brian Watson - [CrashMatrix Pro](https://appshunter.io/ios/app/crashmatrix-pro/id6759350438) All apps by Brian Watson: https://appshunter.io/developer/1878233504 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*