The format was originally created for the Debian release of Linux, but is widely used on all kinds of unix-like OSes. All of the packages in Cydia are in.deb format, stored in remote repositories and accessed over the Internet. If you are testing an app or have an app that's not in a repo, you need to manually install it.
If you're Jailbroken iPhone, iPad and iPod Touch device user, then you must be aware of the Importance of Cydia Application, developed by 'Jay Freeman' a.k.a. 'Saurik' for iOS-Jailbreak community. Installer Package is not available via Apple's App Store, nor on iTunes software. Cydia can only be installed on iPhone, iPad and iPod Touch devices using any ' such as; CoolStar Electra, TaiG, PanGu, 25PP, Yalu + MachPortal, Evasi0n or Redsn0w etc. If you're already running Jailbroken iOS Firmware on iPhone XS Max, iPhone XS, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6S Plus, iPhone 6S, iPhone 6 Plus, iPhone 6, iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPad Pro, iPad Mini 4, iPad Mini 3, iPad Mini 2, iPad Mini, iPad Air 4, iPad Air 3, iPad Air 2, iPad Air, iPad 4, iPad 2, iPod Touch 6 and iPod Touch 5 devices, then you can Manually Download Cydia Application Installer Package.DEB File Free via Direct Links for Manual Installation on iPhone, iPad and iPod Touch Running iOS Firmware. For those users who don't know much about Cydia, Basically, Cydia is a third-party application and its a best available alternative to 's App Store but only for 'Jailbroken iOS Devices'. Cydia enables iPhone, iPad and iPod Touch users to find and install iOS Tweaks, Applications, Utilities and Software Packages, which are unavailable on the Apple's App Store using Advanced Packaging Tool (APT) repositories.
While using Cydia, Jailbroken iOS device users can still be able to buy and download apps normally from the official Apple's App Store. Many Cydia Apps are free, but some requires little amount too. Cydia is available in thirteen different multiple languages i.e. English, Arabic, Spanish, Chinese, French, Italian, Hebrew, Vietnamese, Dutch, Greek, German, Polish, Swedish. Below you will get the Official Direct Download Links of Cydia Application Installer Package.DEB File for Free and Guide and Tutorial on How to Manually Install Cydia Application Installer Package on Jailbroken iPhone, iPad and iPod Touch devices.
Cydia 1.1.30 App.DEB File Free (cydia1.1.30iphoneos-arm.deb) (Latest Version: v1.1.30). Cydia Substrate 0.9.7011 App.DEB File Free (mobilesubstrate0.9.7011iphoneos-arm.deb ) (Latest Version: v0.9.7011). Cydia Impactor 0.9.43 App.DEB File Free (com.saurik.impactor0.9.43iphoneos-arm.deb) (Latest Version: v0.9.43). Cydia Tar 1.29-10 App.DEB File Free (tar1.29-10iphoneos-arm.deb) (Latest Version: v1.29-10).
Cydia Cycript 0.9.594 App.DEB File Free (cycript0.9.594iphoneos-arm.deb) (Latest Version: v0.9.594).