Speedometer. Vertical Speed Indicator panel.
Option for the iPod panel. Gives ability to measure vertical speed based on a built in barometer (present in iPhone 6, iPad Air 2 and later). In iPhone’s portrait orientation shows a graph, giving a bit of a history view over values:
In landscape orientation provides an instantaneous VSI scale:
Units provided are ft/min, meters/min, meters/second. Tap above unit label to set.
Scales provided are 10x, 100x, 1000x for meters and feet per second, 0.1, 1, 10 for meters/second.
Use 3 dots button on top or left side to get more information on this panel or switch to a different panel. You can also switch between these small panels by swiping on them left/right in iPhone’s portrait orientation and up/down in landscape.
Please note that as with all barometers, readings will lag a bit (1-3 seconds). I was trying for a day to apply some filters to the readings until I understood that Apple already applies them. So in the end I’m just using the values as they come from Apple.
This feature is available only in the full version. You can upgrade by tapping here.