Apple has switched on the iOS 27 public beta, meaning anyone with a compatible iPhone can now download and install it, months before the finished version rolls out alongside the rest of Apple's fall software updates, likely in September. Apple has offered developer testers access to the beta since WWDC, but starting now, ordinary iPhone owners without a paid developer account can join in too, as long as their device supports the update. Just because installing it is now this easy, though, doesn't mean it's actually a smart move for most people right now.
What makes iOS 27 a big deal this year
iOS 27 isn't the most feature-stuffed update Apple has ever shipped, but it's still a major one. The release is built around Apple Intelligence, a reworked AI-driven Siri, and new ways to customize the Liquid Glass look, including a long-requested slider control that lets users adjust the effect to their liking. Alongside the visual and AI changes, Apple has put real effort into performance this year, aiming to make iOS 27 run faster on iPhones while trimming down the bugs and glitches that have crept into recent releases.
The real risk of jumping on the beta early
Beta software exists so testers can try out upcoming updates and help catch problems before they reach the wider public. Installing iOS 27 today means accepting that Apple hasn't had time to fix every bug yet. Even the final, official release of iOS 27 won't be perfect, but running a beta build raises the odds of hitting something that makes an iPhone genuinely difficult to use, or that breaks a feature outright.
The public beta is a safer bet than the developer beta that preceded it. Apple typically spends about a month testing updates like iOS 27 with a smaller pool of developer testers before opening things up more broadly. That head start gives Apple time to catch and fix the worst problems, which lowers the risk for everyone who joins later through the public beta. Still, the risk never fully disappears. If something goes seriously wrong, such as an iPhone that stops responding properly, or the beta simply proves too unstable to live with, removing it isn't straightforward, especially without losing data in the process. Without a proper backup made in advance, the only way out is wiping the iPhone completely and reinstalling the latest official version of iOS from scratch. That possibility of losing data is real, and it shouldn't be an afterthought for anyone weighing whether to install the beta.
Back up to a computer first, not just iCloud
Anyone going ahead with the install should back up their iPhone to a Mac or PC before doing anything else. Relying on an iCloud backup alone isn't enough protection, because if the iPhone backs up to iCloud while the beta is running, that new backup overwrites the one made under the current, stable version of iOS. A local backup stored on a computer avoids that problem. If the beta later needs to be undone, that backup can be used to restore the iPhone and recover its data, aside from anything created after the backup was made.
There's one important limitation to keep in mind: a backup like this stays usable only for as long as Apple continues to sign, or support, that specific version of iOS. Once Apple releases a new official version and stops signing the version the backup was made under, restoring from that backup is no longer possible. That's one more reason to think twice, particularly about installing the developer beta rather than the public one.
Which iPhones can actually run iOS 27
Every iPhone that can run iOS 26 is also compatible with iOS 27. That covers the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPhone 16e, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 13, iPhone 13 mini, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 12, iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, and the iPhone SE from the second generation onward.
Being compatible with iOS 27 doesn't mean every one of those iPhones gets every feature, though. Only the iPhone 15 Pro and newer models can use Apple Intelligence features, including the new AI-powered Siri. And only the iPhone 17 lineup, including the iPhone Air, is able to run Apple's best on-device models.
Installing the iOS 27 public beta, step by step
Getting the public beta starts with enrolling an Apple Account in Apple's beta software program, if that hasn't been done already. It matters that the enrollment uses the same Apple Account signed into the iPhone that will run the beta. From there, open Settings on the iPhone and go to General, then Software Update, then Beta Updates. Tap Beta Updates, choose iOS 27 Public Beta, then tap the back button. Once iOS 27 Beta shows up on the updates screen, tapping Update Now begins the download and installation.
Installing the iOS 27 developer beta instead
Even with the public beta officially available, the developer beta track keeps running in parallel. Apple continues releasing developer beta updates for iOS 27 first, with the public beta version following a few hours later, or sometimes the next day. When a build turns out free of major issues, public testers usually get it almost right away. When developer testers do run into serious problems, Apple may hold the public release back until those issues are fixed. Anyone who wants the newest beta builds as fast as possible will want the developer beta, though that means giving up the extra layer of stability that comes from Apple's month of internal testing before the public release.
Getting access to the developer beta used to be a much bigger hassle. In the past, unless someone paid the $99 fee to become a registered Apple developer, the only option was downloading an IPSW file from the internet and manually loading it onto a device, which wasn't the safest practice. Apple has since made the process far simpler for regular iPhone owners who want in without opening themselves up to malware from sketchy downloads.
The process now begins on the Apple Developer Program website. Scrolling down and clicking Create your account under Become an Apple developer gets things started, not Enroll now under Join the Apple Developer Program, since that option still costs the $99 fee. After logging into an Apple Account there and following the on-screen instructions, the developer sign-up is complete. Back on the iPhone, the path is the same as before: Settings, then General, then Software Update, then Beta Updates. As long as the iPhone is connected to that Apple Account, iOS 27 Developer Beta should appear near the top of the beta list. Tapping it, then tapping the back arrow in the top left, brings iOS 27 Beta onto the updates screen, where tapping Update Now starts the installation.
For most iPhone owners, the smartest approach is to let the public beta run its course over the summer and wait for the finished version of iOS 27 to arrive with the rest of Apple's fall updates. Anyone who does choose to install it now, whether through the public or developer track, should treat the backup step as non-negotiable rather than optional, since it's the only real safety net if the beta doesn't go as planned.
