Prepare for the AP Environmental Science exam with APES Prep — a free, offline study app covering all 9 College Board units.
STUDY TOOLS • 270 multiple choice questions with instant feedback and explanations • 36 free response questions with rubric-based self-scoring and sample answers • 180 flashcards — key terms and formulas with tap-to-flip review • 65 study guide topics with exam tips • 18 formulas with worked examples • 162-term searchable glossary
• Study by unit or across all topics • Quick Quiz mode with configurable question count • Review Missed mode to focus on weak areas • Full timed practice exam (80 MCQ + 3 FRQ) matching real exam format • AP score estimation (1–5) after each practice exam
TRACK YOUR PROGRESS • Per-unit accuracy and completion tracking • Study streak counter • Practice exam score history • Weakest unit identification • 19 fun achievements to unlock • Bookmark questions for later review
DESIGNED FOR STUDENTS • Works completely offline — no internet required • Clean, distraction-free interface • Dark mode for late-night study sessions • 5 color themes to personalize your experience • Built-in calculator for practice and exam screens
APES Prep is a supplemental study tool created to help students succeed on the AP Environmental Science exam. It is not intended to replace classroom instruction or official course materials.
Updated on
Apr 16, 2026
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Free AP Environmental Science study app with 270+ multiple choice questions, 36 free response questions, 180 flashcards, study guides, and timed practice exams. All content works offline.