A practical, technician-level skills assessment for residential and commercial work. Real diagnostic scenarios. Real numeric calculations. Real refrigerant and electrical questions. No code-citation trivia.
No signup. No credit card. Take a 20-question test in your browser right now.
A bad hire costs $5–15k in onboarding, callbacks, and wasted truck time. This tool screens for what actually matters: practical diagnostic skill, electrical safety, refrigeration fundamentals, and brand-specific knowledge.
No code-section trivia. Just real scenarios: "Suction line is sweating, supply air is warm — what's the next check?"
Track every candidate's score, category breakdown, and improvement over time. Tag as Hire / Hold / Pass with manager notes.
Per-candidate deterministic seed (two candidates can't compare). Tamper-resistant fullscreen mode. Tab-switch logging. Retake cooldown policy.
Two separate tracks. Commercial focused on RTUs, large splits, and air-cooled chillers (no rack refrigeration filler).
Boilers, Ice Machines, and 5 manufacturer modules: Daikin VRV, Trane, Carrier, Liebert, Stulz. Pick what your shop services.
Re-test the same tech each quarter. See exactly which categories improved — perfect for review and raise decisions.
Any weak category triggers an instant worksheet with fresh practice questions, key concepts, common mistakes, and SVG diagrams.
Apprentice / Journeyman / Senior / Master tier badges. Printable certificate for HR files.
Runs in any browser. No internet required after download. No subscription. Your data stays on your device.
Pay once. Yours forever. No recurring fees.
Stripe-secure checkout. Your license key appears on screen immediately after checkout, with a printable receipt — copy it before closing the page. Paste it into the app to activate. No automatic renewal, ever.
Pay via Stripe. Your license key appears on screen immediately after checkout, with a printable receipt and a link to open the app.
Double-click the HTML file. Paste your license key. Runs offline. No installation.
Test candidates. Track employees. Make data-backed hiring and raise decisions.
Yes. You pay once and own that version forever. No subscription. We may release a v2 in the future at an optional upgrade price, but your current version keeps working.
Each candidate's test is generated from a deterministic seed based on their email — two candidates get different questions even on the same length test, so they can't compare. Tamper-resistant mode forces fullscreen, disables right-click and copy, and logs tab switches. You also set a retake-cooldown policy so the same email can't grind the test.
Locally on your device only. Your test results, candidate names, tags, and notes never leave your browser. Business tier includes a JSON backup/restore so you can move data between laptops or archive snapshots.
Yes. The license is honor-based and tied to your shop. Use it on your hiring laptop, your training laptop, etc. Reasonable use only — don't share it publicly.
7-day money-back, no questions asked. Try the Free version first — it represents the test quality fairly.
Yes. A hosted version with multi-user accounts, candidate invite links, and SSO is on the roadmap. Pro and Business buyers will get a loyalty discount when it launches.
A 30-minute screening test beats a 3-month bad hire. Start with the free version — upgrade when you're ready.