iOS 9 may not be a huge change to the platform but does introduce several nifty features that should benefit iPhone and iPad owners.
Better multitasking, Siri improvements, Low Power mode, improved security, overall usability improvements, no major glitches.
Apple Maps still isn't great, no option to clear all Notifications.
Free to run on compatible devices
Apple has now released iOS 9 to iPhone and iPad users, and any device currently running iOS 8 eligible for the free upgrade.
Apple has described iOS 9 as an update that brings tweaks and refinements to improve the overall performance and usability of the operating system. Of course, there are some new features thrown in for good measure, and Apple has promised a smarter Siri, improved Maps and better multitasking.
We've been using iOS 9 on our iPhone 6 for a while now, so read on to see whether it's worth updating, or whether your decision to upgrade to the iPhone 6S is the right one. We'll update this review if we spot any new features or changes in the full release.
Design and tweaks
Aesthetically, you won't notice much new once iOS 9 is installed. It looks the same as iOS 8, albeit with a subtly prettier San Francisco font (as first seen on the Apple Watch) that replaces the traditional Helvetica seen on iOS devices.
Changes start to appear when you delve further into the OS, though. Notifications, for example, are now sorted chronologically, rather than being illogically grouped by app. As somebody who uses their iPhone a lot, this little change makes a big difference when it comes to catching up on missed emails and messages. We're still disappointed that Notifications aren't cleared when they are in apps, however, and Apple has yet to add an option to clear them all at once.
Multitasking has been given a makeover. A double-tap of the home button now shows your open apps in an elongated card view, not dissimilar to the multitasking view introduced in Android 5.0 Lollipop. This means you can better see what's going on before choosing to jump into an app, while also being able to see apps that have been triggered from a Mac or iPad using hand-off for the first time.
Another new feature makes it easier to switch back to a previous app, thanks to a small button that appears at the top left of the display.
iPad users will see the biggest improvement when it comes to multitasking, as Apple has introduced a Split View mode similar to that seen in Windows 8. This feature has been made available to those using an iPad Air 2, and will be available on the upcoming iPad Mini 4 and iPad Pro.
The keyboard has seen a slight tweak, and buttons are now better placed for those with fat fingers. Unfortunately, the long-awaited cheese emoji won't be arriving for all until iOS 9.1 is released.
Apple has added a lot more strings to Siri's bow in iOS 9. Sliding to the left-most menu reveals a list of 'Siri Suggestions' filled with your most recent contacts and apps, and headlines Siri thinks you might want to read.
Apple has also touted the fact that Siri is now becoming more aware of your habits to help present the sort of information it thinks you're likely to want.
For example, if you have a weekly sales call at 3pm every Wednesday, or you check your emails every morning while commuting, it will supply direct links to make the call or use the mail app at these times if you swipe left. Another nice example is if you plug in your headphones the iPhone automatically fires up your music app of choice, be it Apple Music or Spotify.
Siri has become a better listener, too. You can ask it to show you photos from a particularly time, location or event or to remind you to look at an email in an hour while inside the Mail application and it will return this information.
Siri has also been given a makeover in iOS 9 similar to the version seen on the Apple Watch which, even as an awkward Brit, makes the assistant much more approachable.
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