SkillCat: HVAC, Electrical+ app for iPhone and iPad

SkillCat is the #1 app for HVAC, Electrical & Plumbing training, certifications & jobs!


1. Free 3D Simulation Training - Construction Simulations for HVAC, Plumbers, Electrician, Maintenance, Appliance Repair & more

Get EPA 608 certified or get a trade school diploma 100% free, 100% on your phone!

Get access to HVAC Troubleshooting, measure quick, NEC code book, Supercool Calculator, and more.

2. Tradesmen Community

Whether you’re an Electrician, have a plumbing background, or just came out of HVAC School, we have a community of over 50,000 technicians waiting to connect with you.

3. Instant access to HVAC Technician, Electrician, or Plumber jobs!

Access to 100+ companies nationwide. One-click apply to jobs - no resume required!

We’re making training fun, free, and easy for everyone in the skilled trades. We’re launching new courses in HVAC, Plumbing, Electrical, Maintenance, and Appliance Repair every day! If you have any ideas or suggestions, email us at [email protected]

Full course listing:
1. HVAC Trade Math
2. HVAC Basic Science
3. Key Hand Tools
4. Piping
5. Brazing & Soldering
6. Mechanical Aptitude Soft Skills
7. Mechanical Troubleshooting
8. Basics of Drawings & Blueprints
9. Reading HVAC Drawings and Blueprints
10. Reading Electrical Drawings & Blueprints
11. Electricity Fundamentals
12. How to Use a Multimeter
13. Wiring Diagrams
14. Basic Wiring
15. Electrical Troubleshooting
16. Introduction to being an Electrician Apprentice
17. Intro to HVAC
18. Refrigeration Theory
19. Refrigeration Equipment
20. Heating Theory
21. Heating Systems
22. Airflow Systems
23. Basic Electrical Systems and Controls
24. Advanced Electrical Troubleshooting
25. Preparing Site Reports and Documentation
26. NATE Ready to Work Training
27. Complete Residential Systems
28. Routine Maintenance: Residential Systems
29. Safety Basics
30. Customer Interaction Service
31. EPA 608 Universal
32. EPA 608 Type 1
33. EPA 608 Type 2
34. EPA 608 Type 3
35. EPA 608 Spanish
36. Advanced Electrical Troubleshooting
37. Introduction to Commercial Systems
38. Complete Chiller Systems
39. Working of Heating Systems
40. Air Handling and Distribution
41. Electrical Systems and Controls
42. Packaged Rooftop Units
43. Introduction to Computer Room Cooling (Precision Cooling)
44. Introduction to Commercial Refrigeration Systems
45. Chiller Systems: Routine Maintenance
46. Air Handling and Distribution Systems: Routine Maintenance
47. Packaged Rooftop Units: Routine Maintenance
48. Working of Domestic Refrigerators
49. Seasonal Overhauls for Chillers
50. Installing Chiller Systems
51. Troubleshooting Air Handling Units
52. Chiller Startup Procedures
53. Commercial Refrigeration Systems
54. Computer Room Air Conditioning
55. Central Vacuum Cleaners
56. Kitchen Exhaust Hoods
57. Tumble Dryers
58. Air conditioning
59. Washing Machines
60. Intro to Multifamily Residential (Apartment) Maintenance
61. Toilet Troubleshooting and Replacement
62. Installing and Testing Fixtures
63. Intro to Plumbing
64. Plumbing Fixtures
65. Construction Calculator
66. Duct Calculator
67. Plumbing code
68. Electricians bible
69. Electrical Wiring
70. HVAC PT Chart
71. HVAC duct Size Calculator
72. Electrician Calculator Pro
73. Supercool HVAC
74. HVAC Calculator
75. EPA 608 practice 2022
76. HVAC Refrigerant PT
77. Refrigerant Diagnostic Tool
78. Superheat Calculator
79. Error Codes