SkillCat: HVAC School, EPA 608

In-app purchases
4.9
5.2K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Trade School? More like Trade Revolution.
College is $100K of debt. Traditional trade schools are stuck in 1997.
SkillCat? It’s $10/month. On your phone. And way more fun.

We’re the only app where you can earn your EPA 608, OSHA-10, and Trade School Diploma while sitting on the toilet — and STILL come out certified.

300,000+ tradespeople already joined. What’s your excuse?

What’s Inside:
- EPA 608 & 609 Certification
* Official, accredited, and fully mobile. Core. Type I, II, III. Universal. 98% pass rate.
* No test center. No excuses.

- Accredited Trade School Diplomas
* HVAC. Plumbing. Electrical. Appliance Repair.
* Self-paced. IACET-accredited. Built for people with real jobs and no time to waste.

- OSHA-10 Certification
* Get it. Need it. Required by just about every company that matters.

- NATE Certification Prep
* Want more money? Certify like a boss. NATE preps are inside the app.

- 200+ Courses. No Fluff. No Filler.
* From "How to not die on the job" to "Fix the unfixable."
* Airflow. Wiring. Refrigerants. Motors. Diagrams. All killer, no filler.

Who It’s Built For:
* HVAC newbies & seasoned pros
* Electricians & plumbers who want that paper
* Maintenance techs leveling up
* People who are done with dead-end jobs
* Anyone ready to say “screw it” and build a real career

Why SkillCat Slaps:
* Train from your phone. Anywhere. Anytime.
* No tuition. Just $10/month. Seriously.
* Certs that employers actually respect
* Built by real tradespeople, not some crusty board of directors
* We’ll even email you memes. Maybe a photo of our CEO stress-eating drywall.

SkillCat is the trade school we wish we had.
It’s funny. It’s fast. It’s accredited. And it actually works.

Download it. Use it. Change your life.
Your future self will high-five you.
Updated on
Feb 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Photos and videos and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.9
4.9K reviews
David Berry
June 10, 2025
Recurring issue of not being able to access any courses except the EPA 608 Universal. They contacted me last time (a week ago) to let me know it was a temporary issue that they quickly resolved (and it was, within 24 hours) but it's doing the same thing again. I like this app because I can learn whenever works for me, but lately I don't have that. I'll gladly give the app 5 stars again after they address the reliability issues. If they don't, I'll have to consider ending my subscription.
14 people found this review helpful
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SkillCat
June 16, 2025
Hi there — really sorry again for the inconvenience earlier. We wanted to let you know the issue was resolved within a few hours that same day. We totally understand how important a smooth, reliable experience is — especially when you're trying to learn on your own schedule. Thanks for your patience, and we truly appreciate you sticking with us.
Josh Brewer
April 2, 2025
it's a decent app with several courses available for folks wanting to get into a trade. courses are pretty straightforward and easy. there were several errors and questions in section quizzes that weren't at all covered, but I passed the 608 universal in less than 24 hours. the online proctoring is a huge plus and why I chose it. however, it's pretty slow to load and drains the battery quickly compared to any of my other apps.
10 people found this review helpful
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SkillCat
May 28, 2025
Thanks for sharing your honest feedback! We're glad you found the courses straightforward and that you passed the 608 Universal so quickly — congrats on that! We really appreciate you flagging the quiz errors and app performance issues; we’re actively working on improving those to make your experience even better. Thanks for sticking with us!
Joe Hooks
February 14, 2023
Good content and quality. But I mark right choices and they be wrong. You can pick the right answers and it would still say you missed one etc. Lagging after you complete a modules/ quiz. But you can't beat the free. I would of been done on my type one. My type one I had to redo it . Cause the app kept saying not answers then jumps around. But good information..
15 people found this review helpful
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SkillCat
February 17, 2023
Hi Joe, Thank you so much for rating us! We are really sorry to hear this. Please reach out to us at [email protected] so we can help you further and give you a deeper look at your concern. Thank you!