AC Tech Pocketbook Pro

Your HVAC reference, calculators and service records — always available. No internet required. AC Tech Pocketbook Pro is built for the tech who works where the Wi-Fi doesn't reach. Rooftop, basement, pump room — verified refrigerant PT data, the calculators you actually use, and a service record for every unit you've ever touched. All on the phone in your pocket. PT data you can trust with the charge • Pressure-temperature tables and charts for R-22, R-134a, R-404A, R-407C, R-410A, R-32, R-454B and R-1234yf — generated from CoolProp reference data, source attribution included • Dew vs bubble handled correctly for zeotropic blends — the number other apps get wrong • Scrub the chart or step the table; gauge or absolute units, labeled so you can't mix them up The calculations, done right • Superheat and subcooling with live PT lookup — readings in, verdict out • Target superheat vs manufacturer spec, capacitor tolerance, airflow and Delta-T, electrical and unit conversion • Every calculation saves to history and can attach to the job it was for Service records that outlive the phone • Customers, equipment and jobs — measurements, photos and parts on one visit record • QR asset tags: scan a unit and its whole history opens • Clean PDF service reports your customers actually sign • AES-256-GCM encrypted backups — move everything to a new device in minutes, passphrase-protected Pay once. It's yours. • No account, no ads, no subscription, no cloud lock-in • SQLCipher encryption at rest; nothing leaves the device unless you share it • Works fully offline — forever Built for phone, tablet and iPhone Duo, light and dark — the layout adapts, your work stays put.