iPhone
For now, HVAC Refrigerant Log is on a waitlist path for iPhone. If you want the refrigerant log app iPhone update first, use this page to join the list, then check back here for the App Store link when it opens. You can also start from the home page or review pricing while you wait.
Web and Android
A web version is planned after the iOS app, and Android follows after that. The free PT charts and calculators already work in any browser, so you can use them before the app launch. For progress updates, see web version and Android, or return to Get the app.
Reference only. Verify with manufacturer data and gauges. Follow the manufacturer chart and EPA rules. This site is not an approval from EPA.