NuvoAir Home for iOS supports version 13 or higher.
After each trial you can see the result directly on the screen. The result screen will display the flow-volume curve, FEV1, FVC, the ratio between FEV1/FVC and PEF as well for how long you have exhaled. With NuvoAir Home, you can add up to 5 tests in one session, for Air MD, up to 8. The app will automatically display the best curve and results for you. Please note that spirometry guidelines recommend at least 3 tests per session.