Apple just walked us through iOS 11 for the iPhone, and a few weeks ago Google introduced us to Android O. Combined, this software will power practically every phone in the world. So which one's winning?
The short answer: Android O.
Here's why. Google is killing it on AI -- that's everything from its Google Assistant to a cool-looking feature that can copy a Wi-Fi password when you point the camera at it.
Apple isn't dead in the water by any stretch. It has a chance to catch up if it's able to make AR -- which mashes up virtual items with the actual world -- seriously mainstream.
We don't actually know which OS is really making the more important strides until we can see the completed software side by side (expect September for iOS 11 and October for Android O).
Apple and Google may be saving even more software revelations for the "iPhone 8" and "Google Pixel 2" phones.
The best additions aren't strictly tied to iOS or Android at all.
With that in mind, here's a look at where Apple and Google are pulling ahead, and where they're falling behind.
Flashiest new features
Shrinking a video or Google Maps navigation into a floating thumbnail so you can keep an eye on it while you do other things (called picture-in-picture)
Auto-selecting a name, phone number, address or business to copy/paste
Brush up on everything new in Android O
Paying your friends in iMessage using Apple Pay
Playing audio on multiple speakers in your house
Here's everything new in iOS 11
Winner so far: Android O. Picture-in-picture and the enhanced copy/paste are little things that can go a long way in making the phone more useful day-to-day. And unlike iOS, Android phones could already play music from the phone to multiple speakers (as long as they're Chromecast-compatible).