Here's how to access the files in the Backups section instead:
- Click on Backups in the left panel.
- Click on Backup Explorer below it.
- Find the app folder in the list which will be named after its bundle ID in a reverse domain format (com.developer.AppName).
- Double-click on the folder to open it, and you'll see the Documents and Library folders inside most app folders which contain all of your personal app files (i.e. game saves, documents, media, etc.).
- Simply drag/drop any files to your computer or right-click and choose Export to folder.
Only the developer of an iOS app can enable iTunes File Sharing, so we encourage all of you to contact the developer of any iOS apps that you want to be able to access and ask them to release an update to enable file sharing. It's extremely easy for them to do.
The only apps that aren't affected by this in iOS 8.3-10 are ones installed via an Enterprise app certificate, TestFlight, or via Xcode on a Mac. The files in those apps installed outside the App Store can still be fully accessed in the Apps section of iExplorer or iBrowse in iOS 8.3-10.
Since this is a change on Apple's end with how iOS works and how the file system can be accessed, all other iDevice transfer utilities have the same limited access to the Apps folder in iOS 8.3-10, and any devices running iOS 8.2 and earlier are obviously not affected by it. iExplorer is still fully compatible with iOS 8.3-10, and it's only the Apps section that's different. All other sections of iExplorer should be fully accessible for any and all iPhones, iPads, and iPods.
Apple has been slowly locking down the app folders since iOS 6 when they made the app bundle or .app (dot app) folder read-only and then even hid it entirely beginning in iOS 8. The article below explains:
Why can I no longer make changes to the .app (dot app) subdirectory of an app?
There is now a Jailbreak for iOS 8.3-8.4 and 9.0-9.0.2, so if you Jailbreak and install Apple File Conduit "2" from Cydia, that will give you access to the Root folder of iOS which means full access to all app folders and files. You can find out more at the Jailbreak site below:
iOS 8: http://www.taig.com/en/
iOS 9: http://en.pangu.io