Barograph uses the new iPhone pressure sensor
The new iPhone 6 and 6 Plus each have a sensor that gives readings for barometric pressure. Barograph (free), displays real-time pressure data from that sensor. Weather watchers will know dropping pressure usually means bad weather is coming, rising pressure means good weather.
The app's main interface is a graph that looks for very small changes. Initially it might seem uneven, but you can usually spot a trend pretty easily. The app charts the pressure and your relative altitude.
If you leave the app or lock your phone, the readings stop after 30 seconds so the app is not a battery drain. Pressure readings are in kiloPascals, not a measurement consumers typically use when reading barometers, but what you are looking for is trends. It would be nice if the app gave you the ability to see the data in U.S. non-metric readings.
You can share your barometric readings via Facebook, Twitter and email, if that suits your fancy. You can also save the graph to your image library.
Developer Jackson Myers told me the app is a first try, and it will get more sophisticated, but it does provide an interesting look into some of the new data the iPhone sensors are offering.
The app of course requires iOS 8 or greater, and must run on an iPhone 6 or 6 Plus.
