The Google Drive app has been updated with the ability to back up photos from the iOS Photos app and to edit and save back to Drive using external apps.
The Shazam app has been updated with improvements for iOS 9 including Spotlight Search, support for 3D Touch on the iPhone 6s, Bluetooth improvements, and more.
Google has released an update to the Google Maps app for iOS that shows you events happening nearby and the elevation of your route when walking or biking.
Apple has updated Pages with support for the Retina Display iPad, entering text with the landscape keyboard on the iPhone and iPod, and creating bar, line, area, and pie charts.
TestFlight, a web service that helps developers manage iOS beta testing, has been purchased by Burstly and is launching TestFlight Live, a real-time dashboard that highlights actions and revenue for iOS apps.
Amazon has updated its Photos app for iOS with 64-bit support, the ability to automatically import all your iCloud photos and videos, and the ability to share multiple photos/videos.