What's Cydia?  
Basically Cydia is a portable application that provides softwares. And most importantly it is the only software that gives access to download and set up cellular applications for all of the IOS devices which was Jailbroken. It is like same as the App Store.  
But just the Jailbroken apparatus users can get all the facilities of the awesome program.  
Obviously we can find the Cydia app simply on Jailbroken devices. Apple has enhanced the security system, It's still not feasible to use Cydia Jailbreak IOS 15.2 therefore there is no Cydia program too. Hopefully in the future we will get install cydia ios 15 Jailbreak IOS 15.2 and also then we'll receive more amazing features through Cydia program.  
The Key aspects of Cydia:-  
? You can change the subject of your iPhone or even iPad  
? Using Cydia download ios 15.2 your apparatus font, program icons or even your lock screen and lock display motif can be changed   
? Offers several options for modification, modification and improvement on Apple device.  
? It release invaluable apps and tweaks   
? Users will have the ability to use their iOS apparatus at their maximum capacity whenever they receive Cydia download ios 15.2  
The best tweaks and apps available on Cydia:-  
? BatterySafe- Your iPhone automatically turns off the professional services that use more electricity to empty battery like WiFi, Bluetooth and brightness when the device is running on charge   
? BiteSMS- This Permits You to quickly respond to text messages start a call without leaving the current app you are in  
? AdBlocker- This tweak can make web experience simpler by blocking ads on Safari and third party browsers  
? BytaFont 2- on this you can change and customize the font. BytaFont 2 allows users to Use the ribbon to all your entire apparatus parts  
? Activator- With this tweak iOS you can create unique items on your device. It empowers users to declare unique actions for tasks and on-screen gestures. Enables users to assign actions to Touch ID, which makes it even more better.  
? ByPass- This necessitates Activator. This allows users to bypass entering the password they've set by performing an Activator actions. Users may set a secret hint They Can perform to ByPass password  
? FlipControlCenter- Insert, remove or rearrange the switches in the top and bottom shelves of Control Center.  
? AirBlue Sharing 7- An sharing program. It is possible to share your documents with all sorts of apparatus.  
? Bloard- With that it's possible to substitute the white keyboard having a better looking black person.  
? DockShift- Lets you alter the Look of the dock as Well as the backdrop