CalculusAPex: AP Cal Prep

Master AP Calculus AB and BC through structured macro-skills, micro-skills, visual explanations, practice questions, and challenging case studies.

CalculusAPex is a highly structured AP Calculus AB and BC practice app — built for students who want to understand the material deeply, not just memorize formulas.

Whether you're targeting a 4 or pushing for a 5, CalculusAPex meets you where you are and takes you further.

WHAT'S INSIDE

▸ MACRO-SKILLS 26 cross-topic skills that form the mathematical backbone of AP Calculus — limit reasoning, derivative interpretation, accumulation logic, graph analysis, and more. Each skill links to hand-authored problems and unlimited extra practice.

▸ MICRO-SKILLS Every unit in AP Calculus AB and BC, broken down into specific learnable skills. Each card gives you a clear concept explanation, an AP exam tip, and a practice problem. Complete them in order. Track your progress automatically.

▸ CASE STUDIES 50 multi-concept problems modeled after AP Free Response Questions. These are the hardest problems in the app — each one spans two or more units and comes with: · A "Why Is This Hard?" crossover explanation · Step-by-step guided solution: reveal one step at a time · A complete full solution after all steps are shown

▸ EXTRA PRACTICE Auto-generated exercises with shuffle mode so you always get a fresh set. Drill any Macro-Skill or Micro-Skill until you're confident.

▸ PRACTICE EXCELLENCE GUIDE An in-depth article on how to use the app for maximum results — covering spaced repetition, error analysis, mathematical intuition, and AP exam-specific strategy.

BUILT FOR SERIOUS STUDENTS

· Tracks both AP Calculus AB and AP Calculus BC — switch tracks anytime · Scaffold mode guides you through wrong answers step-by-step · Distractor feedback identifies the exact type of error you made · Progress rings and completion tracking across all exercises · Fully dark mode. No ads. No account required.

PREMIUM

Free: Full AP Calculus AB Macro-Skills and first unit of Micro-Skills Premium: One-time purchase unlocks the complete AB and BC curriculum - all Macro-Skills, all Micro-Skills across 8 units, and all 50 Case Studies.

Payment will be charged to your Apple ID account at confirmation of purchase. This is a one-time, non-refundable purchase (except as required by law). Restore purchases anytime through the app or App Store settings.

AP, AP Calculus AB, and AP Calculus BC are trademarks of the College Board. CalculusAPex is not affiliated with, endorsed by, or sponsored by the College Board. This app does not guarantee any specific AP exam score or outcome.