Jailbreak 3.0

Installation

1. Get the IPA (Contained in the Jailbreak.zip file).
2. Install Cydia Impactor (Contained in the Jailbreak.zip file).
3. Connect your device to your computer.
4. Start Cydia Impactor and drag the IPA onto the top field.
5. Enter your Apple ID credentials.
6. On your device, go to "Settings > General > Device Management" and trust the certificate.
7. Run the app and tap on "Prepare For Jailbreak".
8. Wait for it to respring, then launch Cydia from the Home Screen.
9. Whenever you reboot, open the app again and tap on "Kickstart Jailbreak".
10. Whenever the app expires, install it again with Cydia Impactor.

Exploit might fail a few times, if it does just try again.

Offsets
If for whatever reason you need to manually specify
offsets for 9.3.5, you can get the default ones here:

iPad 2/3, iPad mini, iPhone 4s, iPod 5g: A5
iPad 4, iPhone 5/5c: A6


@Derp's Alternative way

Link
Open the above on your iDevice (running iOS 9.3.5) and click Install.