You already know where you're weak.
Now fix it.
Free practice shows your weak spots. Pro gives you the tools to fix them — and a guarantee you'll pass.
Free
$0forever
Everything you need to practice. No signup required — or sign up to sync across devices.
All 5 sections (Core, I, II, III, Universal)
Unlimited tests & attempts
Explanations on every wrong answer
Weak-spot chart & topic breakdown
Full session history
AI Study Helper (10/day)
Flashcards (all sections)
Signup = sync history across devices
Blind-spot drill (auto-targeted test)
Unlimited AI
Certificate of completion
Pass guarantee — full refund
Most Popular
Pro
$14.99one-time, lifetime
For technicians who need to pass fast — and want proof they did.
Everything in Free
Blind-spot drill — auto test your weak topics
Unlimited AI Study Helper
Certificate of completion (shareable PDF)
Pass guarantee — full refund if you fail
One-time payment. Lifetime access. Money back if you don't pass.
SkillCat charges $10/month (recurring). We charge $14.99 once (lifetime).
Pass Guarantee
Complete 10+ practice tests scoring 70%+. Take the real EPA 608 exam within 90 days. If you don't pass on your first attempt, send us your score report — we refund 100%. No questions asked.
Training a team of HVAC technicians?
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