We can say that it is an alternative to Apple App Store, as it gives you access to thousands of tweaks, themes, and packages to customize the look of your iPhone, iPad, or iPod touch. Cydia was first released in Feb 2008 by Jay Freeman (saurik). It has thousands of unofficial applications as well.
Why should you install Cydia?
If you have an iDevice, then you already know that you can’t do much with the official Apple IOS, as Apple does not allow you to modify or customize it. Android users can easily customize the look of their smartphones as they want it. Similarly, many Apple users also want to have the same functionality with their iDevices. This is where Cydia helps you.
Cydia is a third-party package manager that lets you install unofficial apps, themes, and tweaks. It lets you change fonts, icons, the lock screen of your device, and much more with different packages and tweaks. You can even download many modded games. You can install different download managers which give you access to download unlimited files, music, and documents (as there is no official download manager for IOS Devices). With the help of Cydia, you can even change the default ringtone for incoming calls, messages, or emails. You can even do much much more with the help of Cydia.
How to install Cydia?
Cydia works on jailbroken devices only. So if you want to install it on your iPhone, iPad, or other IOS device, then you have to jailbreak your device first. It is a process that modifies Apple’s official IOS to remove restrictions and gives you greater control of your device. Jailbreaking your device gives you access to the root filesystem of your device, which is not possible in stock OS.
At the time of writing this article, the latest jailbreak tool supports IOS 12.0-12.2 and IOS 12.4. While IOS 12.3.x is not supported at the moment. The recently available tools for jailbreaking are Chimera and unc0ver. Both tools can jailbreak IOS 12.0-12.2 and IOS 12.4. You can follow official documentation for jailbreaking on their official websites.
Read here => How to Jailbreak Your iPhone.
Jailbreak is not a dangerous process; it can not brick your IOS device. But the worst thing which can occur is resulting in your device in DFU or black screen mode. And you can fix it easily by a hard reset. Even if you damage the complete file system of your device, still you can give it life by restoring it to official Apple IOS firmware.
Jailbreak is not an illegal process. Every Apple user can jailbreak his/her device, as you have a complete right to do whatever you wanna do with your device. Jailbreaking your device voids its warranty. It is clearly mentioned by apple “unauthorized modification of iOS is a violation of the iOS end-user software license agreement.” But do not worry, restoring your IOS device with official IOS firmware from apple makes it a new device again. There won’t be any traces of a jailbreak anymore.