- Locate the app in Finder and Control-click on it.
- Select Get Info from the popup menu that follows.
- Look under General > Version for the version number.
To find the app version number in iOS 7 or iOS 8 on a mobile device:
- Open the App Store on your device
- Open the Purchases tab, or the Updates tab to access the Purchased list, and locate the app. You will see the version number listed below the app name.