Jailbreak developer Julioverne has released an alternative to Cydia Extender Installer called Ext3nder. This new utility automatically installs Saurik’s Cydia Extender application along with Julioverne’s Extendlife tweak.
Requirments:
A compatible device running iOS 10
Cydia application
AppSync Unified (version 6.0 beta 1)
How to install Ext3nder on iOS 10/10.1.1/10.2:
Step 1 Remove Cydia Extender and ExtendLife if you have installed it already. Doing so will remove the VPN (Virtual Private Network) that Cydia Extender added. Ext3nder utility doesn’t make use of a VPN.
Step 2 Install the latest version of AppSync from Karen’s Pineapple repo. Read this step by step guide on how to install AppSync Unified for iOS 10. Do this only if you haven’t installed it. If you have AppSync installed already, go to the next step.
Step 3 Run iCleaner. Launch Cydia.
Step 4 Go to Manage > Sources. Select Edit at the top right > Add.
Step 5 Enter the URL of Julioverne’s repository – https://julio.xarold.com/
Step 6 Install Ext3nder tool. It should be successfully installed now. The best thing is that it doesn’t require any other tweak to work.
Step 7 Reboot your iOS device.
Since a lot of users were not able to get it to sign properly, here’s the complete signing tutorial.
Source: yalujailbreak