You will be pleased to learn that you can download iOS 11 Beta 4 without a developer account with Apple. Here's how.
You Have the Option to Download iOS 11 Beta 4 Without a Developer Account, But it's Not Necessary
iOS 11 is currently in beta and users around the globe are doing everything possible to get their hands on the software before everyone else. Sure, you can go ahead and get yourself a $99 Apple Developer Program membership to get access to the beta software, but it's a little too steep for some. Thankfully though, if you want to try out iOS 11 Beta 4 without a developer account, you can do so right now. Just head over to this link for the necessary details.
Quite frankly, I will not recommend taking the above route at all. The reason is simple: iOS 11 Public Beta is officially available for everyone to try out already. This means you can take the software for a spin on your iPhone or iPad without spending a dime, and it's all legit. If you are looking for more details, head over to this link:Download and Install iOS 11 Public Beta on iPhone, iPad Right Now.
Usually, users end up believing that developers get more feature related benefits when they download iOS 11. But really, that's not the case at all. And there's no telling whether or not Apple would ultimately block the method for downloading iOS 11 like this, leaving you in complete limbo, while also forcing you to downgrade back to iOS 10 just because you lost functionality of your device in the process. So please, rather than taking the 'workaround round' for downloading iOS 11 Beta 4 without a developer account, save yourself some trouble and head over to beta.apple.com in order to download the latest beta software for your iPhone or iPad.
Before you take off, make sure you check out the following:
Download iOS 11 Beta for iPhone & iPad – How to Install Right NowHow and Why You Should Clean Install iOS 11 Beta on iPhone & iPadiOS 11 Beta Compatible Devices List – iPhone, iPad & iPad touchShould You Install iOS 11 Public Beta? Here are a Few Things to ConsiderHow to Downgrade iOS 11 Beta to iOS 10 – iPhone & iPad Tutorial