The list of updated apps for iPhone 6 and iPhone 6 Plus is still somewhat small since developers only learned of the new iPhone display resolutions earlier this month. The Kindle iPhone app from Amazon is joining that short list today, though, with a new version optimized for the iPhone 6.
That means that like iBooks, text you read in Kindle’s iPhone app won’t be fuzzy or scaled up. If you prefer the zoomed up version, however, iPhone 6 users do have that option to make every app larger using the Display Zoom feature found in the accessibilities section of the Settings app on iOS.
Facebook Messenger has also been updated for the new iPhone models. Notably, the chat app has beat the primary app for the social network in updating for the new iPhones.