Barograph: BarometerAltimeter is an iPhone app developed by Jackson Myers that utilizes the barometer in iPhone 6 and iPhone 6 Plus devices to track real-time atmospheric pressure. The app can monitor pressure changes, aiding in predicting weather patterns such as upcoming rain. It also offers insights into pressure variations with changes in elevation, displaying relative altitude using barometer data.

With Barograph, users can view atmospheric pressure graphs in kPa, mbar, hPa, or inHg, record barometer data in the background, receive push notifications with pressure values, and share data over various platforms. Additionally, users can save and share barograph plot images and view relative altitude in meters or feet. The app's latest update includes a notification center "today view" widget for quick atmospheric pressure checks.