If the app's provisioning profile has expired, you will see it in the Device console. If you have access to the device, plug it into your Mac and fire up Xcode.
Starting with Xcode 6, to view the console output of a connected device:
Connect your device.
Build and deploy the app to the device using either the CLI or Studio.
Sync the application to the device using iTunes (if you are not building directly to device).
Launch Xcode.
Open the Devices window. From the menu, select Window > Devices.
Select your device from the left bar.
Click the Show the device console button ( ) to expand the console.
Once you have the console up, click the trash can to clear it, then on the device try to launch the app. If the provisioning profile for the app has expired, I believe you will see a message like the following:
A valid provisioning profile for this executable was not found
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…