Study. Practice. Pass.
Prepare for the EPA Section 608 certification exam with a question bank built for 2027. All four sections (Core, Type I, Type II and Type III), a clear explanation after every answer, and timed mock exams in the real format, so you walk in ready.
Free to try · Pay once, own it forever · No ads, no account
Everything you need to pass. Nothing you don't.
One calm app for the whole certification. Real exam conditions, and an explanation whenever you need one.
All four sections
Core, Type I (small appliances), Type II (high-pressure appliances) and Type III (low-pressure appliances): 700 practice questions with detailed explanations.
Practice by chapter
Short, focused quizzes that fit between two service calls. Every answer comes with instant feedback and a clear explanation.
Real-format mock exams
The real conditions of test day: a timed 25-question exam for each section, with the same 70% pass mark as the actual EPA 608 test.
New A2L & A3 topics
R-32, R-454B, R-1234yf, R-290 and R-600a: the new refrigerant topics joining the exam in 2027, and none of the retired legacy R-22 material.
Review your mistakes
After every quiz, go back over what you missed and why. Your progress is tracked section by section, so weak spots don't stay weak.
One purchase, yours forever
No subscription, no ads, no expiring trial. Unlock the complete question bank and unlimited mock exams once, and keep them forever.
Three steps. Zero learning curve.
No account, no setup wizard that never ends. Open the app and start studying.
Pick your section
Core is required for every certification type. Add Type I, Type II or Type III for your trade.
Practice chapter by chapter
Short quizzes with an explanation after every answer. Fifteen questions per chapter are free.
Sit the mock exam
25 timed questions, 70% to pass, the real format. When you pass here, you're ready for the real thing.
Free to try. One payment to own.
No subscription. No ads. Pay once, it's yours.
EPA 608 Prep Free
Start today — no account, no card.
- ✓ All four exam sections
- ✓ 15 practice questions per chapter
- ✓ 1 mock exam per section
- ✓ Explanation after every answer
- ✓ Adjustable text size
- ✓ Progress tracking and mistake review
- ✓ No ads, no account needed
- ✕ Complete 700-question bank
- ✕ Unlimited mock exams
EPA 608 Prep Pro
Billed once through Google Play.
- ✓ All four exam sections
- ✓ Complete question bank: 700 questions
- ✓ New 2027 topics: A2L & A3 refrigerants
- ✓ Unlimited timed mock exams
- ✓ Explanation after every answer
- ✓ Adjustable text size
- ✓ Progress tracking and mistake review
- ✓ No ads, no account needed
- ✓ Pay once — yours forever, no subscription
Your studying stays on your phone.
EPA 608 Prep was built for technicians. It treats your data the way it treats you: with respect.
- ✓No account, no sign-up. EPA 608 Prep never asks for your name, email, or any identifier.
- ✓Progress stays on your device. Your scores and history are stored locally on your phone and are never uploaded or shared.
- ✓No ads, no trackers. Nothing follows your studying, and there is nothing to sell.
- ✓Purchases handled by Google Play. Pro is verified through RevenueCat with an anonymous identifier. We never see or store your payment information.
Read the full policy: engysgroup.com/epa608/privacy