Free to start.
One plan when you're ready.

• Refrigerant converter: pressure to temperature, any blend
• AC size calculator: room load to the right unit
• Every engineer guide: the physics, plain
• The diagnosis demo: the real tool on a sample unit

The founding rate is locked for as long as you stay subscribed — it never rises while you're in. Once the 50 seats are gone the price goes up for everyone after you, and the founding option disappears for good. Fifty means fifty.

• P-h Diagnostic: your readings on a live chart, with a verdict
• Guided investigation: starts from the symptom, decides the next check
• 600+ fault codes across 18 makes, each with a step-by-step flow
• Reference: the raw tables. Codes, specs, controller access
• Charge calculator: additional refrigerant by pipe run
• Every job remembers what the fault actually turned out to be
• Job packs, reports, certificates & invoices on your branding
• F-Gas register with export: the 5-year record, kept for you

Cancel any time from the app. Payments by Stripe.