About this app
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.
Latest release
What’s New
Improved MCQ content to help ensure proper understanding and promote thoughtful answering.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Sep 15, 2026 · 1:34 AM Free
Screenshots
