Jailbreaking may be falling out of favour these days, but it's still useful for those that love to tweak and customise. Whether you're sick of Apple's walled garden or you just like everything a certain way, jailbreaking allows you to really take control of your iPhone. It's not as necessary as it once was, but it's just as fun as ever.
One of the landmark new features in iOS 9 is 3D Touch on both the iPhone 6s and 6s Plus. One of those features is called Quick Actions. When you hard press on apps, you get contextual menus to instantly take you into specific parts of an app. For example, on the Maps app, you can hard press and then get a menu to instantly get directions home. It's pretty cool, but it doesn't work on older devices. RevealMenu changes that. RevealMenu allows you to short hold on an icon to bring up the Quick Action menu, no 6s needed. There's even a little vibration to give you haptic feedback.
Activator has long been one of the most essential jailbreak apps and the iOS 9 version is almost worth jailbreaking for all by itself. With Activator, you can assign custom actions to gestures and button presses. For example, if you want to launch a specific app with a three finger swipe, you can do that. In this version, you can also add in custom events for 3D Touch, which means you can change what happens when you hard press on icons, or when you hard press anywhere on the screen. It really opens up how you use your phone.
Speaking of those Quick Actions, not every app out there has them. Shortcuts adds a variety of Quick Action menus to various apps so you can instantly get to whatever settings you want, regardless of if the app developer feels like updating their app or not.
The new app switcher menu in iOS 9 isn't for everyone. If you'd prefer to customise it, SwitcherTweak allows you to change the page scroll direction, page blurring style, background blurring style, and modify the switcher size.
iOS 9 added a handy "Back to" option when you follow a link from one app to another. It's handy in the idea anyway. In execution, the button can get in the way if it happens to lay over an app in an obtrusive way. BreadcrumbsAway allows you to swipe the back button so it disappears and you can get access to your app.
CCSettings lets you customise what settings appear in the Control Center. So, if you never use Aeroplane Mode or the Wi-Fi toggle, you can swap them out for something like Location Services or a Personal Hotspot. The newest version also adds a toggle to enable Low Power Mode in iOS 9, which is great for anyone trying to eek out extra battery life.
The jailbreak staple and customisation app Winterboard hasn't been updated for iOS 9, but Anemone is a fantastic alternative way to theme your device that works with iOS 9 out of the box. Once you get it up and running, you can customise the look of iOS in a variety of ways. You can skin your device with various themes, customise icons, and personalise your device in all sorts of fun ways.
Spotlight is awesome and easily one of the best ways to search for files, places, contacts, and everything else on your phone. But for privacy reasons, not everyone likes having quick access to everything. SpotlightBeGone kills it all so Spotlight doesn't exist at all anymore.
HideMe8 lets you customise a ton of little things. You can hide and disable icons in Control Center, hide icons in the lock screen, get rid of various elements in the Notification Center, and most importantly, hide away any stock apps you don't use. Some people have reported the app is a little glitchy in iOS 9, but I haven't had trouble. Either way, the developer's supposedly working on an updated version called HideMeX that should fix any issues.
Untethered Hey Siri
iPhone 6s and 6s Plus users can say "Hey Siri" at any time to bring up Siri. Older iPhone users can only do so when the phone's plugged in. Untethered Hey Siri allows older iPhone users to invoke Siri with "Hey Siri" anytime, anywhere, just like the 6s and 6s Plus.
Older Jailbreak Favourites Also Updated for iOS 9
Kodi: (formerly XBMC) is an essential app if you're a fan of Kodi. The iOS version is just as powerful as any other one.
iFile: iFile is the best file manager for iOS and it's still a necessity for jailbreakers.
Apex 2: Apex 2 changes how folders work on iOS. Instead of using the typical folder menu, Apex hides apps behind apps.