A free app for Android, by AR Labs.
If you are looking for an app to check the atmospheric pressure in your area, you may want to try this out!
The Accurate Barometer app from Android helped you determine the accurate measurement of the local pressure. It presents the pressure reduced to the mean sea level, from the nearest airport, and the latest 24-hour pressure chart. This is practical for people who want to go fishing or if you are just curious about what the weather looks like.
Accurate Barometer requires Android 5.0 and up so before installing, make sure that your device is in its latest version.