Cydia not updating repos
Cydia Substrate is another valuable project from Saurik.
It can be used to develop third party addons for i OS and Android.
All of these app stores allow to instal Cydia as configuration profile.
Other than the Cydia, Saurik has launched many tools.
Xabsi is alternative app stores for both Cydia and Apple App store.
You can jailbreak apps using Xabsi for latest i OS versions and devices even you can install Cydia.
This tool is very useful to install IPA files on i OS versions and APK files on Android. It is a tool which allow to browse, install and resign application without a computer. Cydia Eraser remove the jailbreak completely from your i Device by clearing all the jailbreak apps, files.z Jailbreak is the best alternative for Cydia.
Most important thing is latest Cydia impactor tool is available for Windows, Mac or Linux OSs. It consists of many jailbreak tweaks, Themes, hacked games, apps and many more as same as Cydia app store.