Night mode is an automatic setting which takes advantage of the new wide-angle camera that's in the iPhone 11 and 11 Pro models. It's equipped with a larger sensor that is able to let in more light, allowing for brighter photos when the light is low.
macOS Catalina Now Available
First iOS 10 Apps Start Hitting the App Store
Rock-Paper-Scissors [Direct Link], for example, a Messages app that allows two people to play a classic game of Rock, Paper, Scissors right in Messages, is now in the App Store. It is not, however, showing up in the dedicated Messages App Store, which will presumably launch tomorrow. Other apps for Messages, like Snappy Browser, are also starting to become available.
The Messages App Store is an app storefront located within the Messages app, accessible on a device running iOS 10 by tapping the app icon, opening the app drawer (tap the icon that looks like four circles) and then choosing the "+" store icon.
Using the Messages App Store, iOS 10 users will be able to install a huge variety of sticker packs and apps to enhance the chat experience in Messages. Stickers are used a lot like emoji but can be animated and stuck on top of chat bubbles, photos, and more, while apps can do things like offer weather updates, a Safari browser for looking things up without using Messages, provide collaborative food ordering tools, and more.
iOS 10 offers a huge number of new features for developers, and in addition to Messages apps, we'll also be seeing apps that can take advantage of the new features in Maps and apps that offer third-party Siri support. Expect to see significant app updates coming out throughout the week, leading with tons of app releases tomorrow.