HVAC Charge Check
PT Chart and Charge Verdicts
$2.99 · Designed for iPad. Not verified for macOS.
Offline HVAC charge verdicts for service calls: superheat, subcooling, PT chart reference, and saved job checks.
HVAC Charge Check is an offline field calculator for service techs who need a fast refrigerant charge verdict on a live call.
Use it for:
• Superheat checks on fixed-orifice, piston, and cap-tube systems
• Subcooling checks on TXV and EEV systems
• Common refrigerants including R-410A, R-22, R-32, R-454B, R-407C, and R-134a
• Pressure-temperature reference for R-410A, R-22, R-32, R-454B, R-407C, and R-134a
• Clear Add, Hold, or Recover verdicts from field readings
• Saved job checks for local notes
Why techs keep it on the truck:
• Opens straight to the charge workflow
• No account, no ads, no subscription, and no bulky HVAC suite
• Works offline in attics, basements, rooftops, and mechanical rooms
• Keeps readings and saved job checks on the device
HVAC Charge Check is a field utility, not a replacement for manufacturer charging procedures. Stabilize airflow and load, then follow equipment documentation when available.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Updated the App Store listing to better reflect the app's offline PT chart and field verdict workflow.
The developer, 光 杨, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 光 杨
- Size
- 1.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Guang Yang
