iOS 9 Jailbreak is available with Pangu 9 Jailbreak & PPJailbreak tools. You can easily jailbreak any iOS 9 to iOS 9.1 iPhone, iPod or iPad using Pangu9. PP Jailbreak tool supports to jailbreak iOS 9.2 to iOS 9.3.3 devices. Below has the compatibility list of both tools. Use them to install the full functional Cydia automatically.

Jailbreak iOS 9

What are the new iOS 9 features and why should you jailbreak it

News App - Apple has introduced a news app with iOS 9. You can get the news smart way to your device with this new app, But they provide CNN, BBC, Wired , Vanity Fair , Time and many more news sources, But They don't provide all news sources with the app. if you really want to personalize your news app with more sources you must jailbreak the iOS 9.
Notes - They upgraded Notes app with iOS 9. it seems that they have copied Evernote at this time
Maps  - Apple redesigned and upgraded Apple Maps, But Still it is an infant when comparing with Google maps. You must use "MapsOpener" Jailbreak tweak with iOS 9 to set Google maps as Default app.
Wallet - Thay have added more Payment methods and optimized it for Apple Pay. Read more about our  Jailbreak and Apple pay article
iPad Multitasking - This is the coolest new feature for iPads with iOS 9. They just copied “OS Experience” Jailbreak tweak at this time. “OS Experience” is a paid Jailbreak tweaks ( $ 9.99) However now you can get all the  “OS Experience” functions for free with Apple's iOS 9

Really worthwhile iOS features which you cannot get from Jailbreak

If iOS hackers couldn't find a jailbreak for iOS 9 you have to stay with your previous iOS version or you have to give up your favorite jailbreak features and update your device to iOS 9, You can get many iOS 9 features to your device from jailbreak tweaks. But you cannot get these features from JB tweaks at all
It saves your battery life magically
They have redesigned whole OS and main apps to save energy, You could use jailbreak tweaks as BattSaver to save your battery, But iOS 9 really save your battery than BattSaver.

However jailbreak liable to decrease of your battery life
It is faster than before
Yes! It is real. You can get fast experience with iOS 9. Jailbreak can slightly slow performance of your device.
Apple have increased some security features
They have added 6 digit pass codes and 2 factor authentication. They have fixed the "effective power Arabic character" bug with iOS 9 update

More special changers with iOS 9

Apple added Android sync feature with iOS 9 for 1st time. Now Android users can easily convert to Apple. It is safely transfer contacts, messages, Videos , photos , mail accounts, social data and everything through wifi.

Apple also dropped iPhone 4 from iOS 9 list, iPhone 4 users have to stop with iOS 8.4. There is no any real alternative from jailbreak community to sync iOS with Android.
* Pangu9 Jailbreak tool for iOS 9.0 to iOS 9.1 jailbreak
Use this link to get full-text guide & video guide.
* PP Jailbreak tool for iOS 9.2 to iOS 9.3.3 Jailbreak
This link shows all the details to complete full jailbreak for Cydia.

Worth upgrading iOS 9.3.3 up to iOS 10.2 for Cydia

upgrading iOS
Yes. Now no need to stay in iOS 9.3.3 for Cydia. You can easily upgrade device iOS version up to 10.2 with Cydia. Yala102 jailbreak tool supports for 10.2 version now. iOS 10.2.1 & iOS 9 do not include the support list of Yalu102. Recommend staying on iOS 10.2 with full functional Cydia. Go through iOS 10.2 Jailbreak page for more details.

Top reasons not to stay on iOS 9 Jailbreak.

Highly recommend avoiding all the iOS 9 versions if you want full functional Cydia or limited functional Cydia with latest iOS versions. Here are the top reasons.
* iOS 10, iOS 10.1.1 & iOS 10.2 versions are jailbreakable. Cydia is available with Yalu102 Jailbreak
* Pangu9 only supports to jailbreak iOS 9 to iOS 9.1.
* Using PP Jailbreak only supports to jailbreak iOS 9.2 to iOS 9.3.3.
* Every top release are available less bugs. But can’t jailbreak iOS 9.3.5 using Pangu9 or PP Jailbreak tool as the top release of iOS 9.
* Z jailbreak app works on iOS 10.2.1. Recommend upgrading up to iOS 10.2.1, if anyone wants to install limited Cydia function with zJailbreak.
* Semi Jailbreak app is outdated now. No recommend installing it for iOS 9 versions.
* Yalu Jailbreak 102 is not supported for iPhone 7 & 7 Plus yet. It has the same result ignoring iPhone 7 & 7 Plus Jailbreak, course of not having iOS 9 versions on it.
Pangu9 compatibility.
Supported Devices.
iPhone 6s,6s Plus, 6, 6 Plus, 5s.
iPad 4, 3, 2
iPad mini 4, 3, 2
iPad Air 2, 1
iPod touch 6, 5

Supported Versions.

iOS 9.0, 9.0.1, 9.0.2, 9.1

PP Jailbreak ( PP Helper )Compatibility
Supported Devices.

iPhone SE, 6S Plus, 6S, 6 Plus, 6, 5S
iPod touch 6
iPad mini 2, 3, 4,
iPad Air 2, 1, iPad Pro

Supported Versions.

9.2, 9.2.1, 9.3, 9.3.1, 9.3.2, 9.3.3.

Semi Jailbreak for iOS 9

Not recommend. Semi Jailbreak app is outdated now. SBJ developer has stopped releasing the app for latest iOS versions. Because of having full functional Cydia for iOS 9, no need using Semi Jailbreak app.
zJailbreak app availability for iOS 9 versions.
You can’t use even zJailbreak app for iOS 9 versions too. zJailbreak app is available for latest iOS versions only. Recommend to use this app for iOS 10.2.1 jailbreak. Can get limited functions of Cydia from this.
Rest of jailbreak support
lighting Cable Jailbreak
Popular German iOS JB developer i0n1c introduced this concept for the first time. Apple provides the lighting Cable to charge your device phone and transfer data with your device and your computer. Read more
TaiG Rootless Jailbreak technology
TaiG team has announced they couldn't need to the deliverance of the root for iOS 8 jailbreak, Then We can assume that they could release the jailbreak for iOS 9 skipping Rootless kernel level security.
Use OS modification technology
Future iOS jailbreakers will try to install modified iOS 9 version instead of original iOS 9. The whited00r team has already done this for old iOS versions.