
Even though there probably aren't too many people out there who use Google Wallet with their iPhone, Google still likes to be forward-thinking with their app development. The case-in-point for today is that Google just added support for Apple's Touch ID sensor to their Google Wallet app.
In iOS 8, Apple opened up third-party support for their Touch ID sensor built into the Home button on the iPhone. Google apparently didn't want to leave any of their Google Wallet customers who switched to an iPhone out in the cold when they want to use that app. This way, you can now sign in to your Google Wallet app using the Fingerprint Sensor on your iPhone.
Of course, there are a few things that this update won't do as well additional features as well. Here's a quote,
Even though users can now sign into their Google Wallet app using their fingerprints, the app can’t make use of the NFC secure element in the iPhone 6 and iPhone 6 Plus to initiate wireless payments in stores, like Apple Pay does.
Google Wallet for iOS has also received a split bills between friends feature, and offers users access to gift cards and credit cards even when the device doesn’t have Internet access.
Source: iTunes