Cydia (pronounced /sɪˈdi.ə/) is a graphical user interface for a distribution of the Advanced Packaging Tool known as Telesphoreo. Telesphoreo is available for iOS, and enables a user to find and install software packages (including apps, interface customizations, and system extensions) on a jailbroken iPhone, iPod Touch or iPad.
Most of the packages for sale within Cydia use the Cydia Store payment system, with Cydia taking a 30% cut that includes covering PayPal fees and server costs. Developers are not required to use the Cydia Store system to charge for their software; some paid packages, such as LockInfo and biteSMS, must be registered separately from the Cydia Store through the developers’ own means.
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Internet
MyWi
The single best way to add tethering to your device without a monthly plan. Has instant tethering feature that automatically connects to iPad.
Price: $19.99, free trial
Available from repository: http://apt.modmyi.com/
(search for MyWi)
PdaNet
Another fantastic option for tethering without a plan. Does not have as many features as MyWi, but it is cheaper and still works well.
Price: free
Available from repository: http://apt.modmyi.com/
(search for PdaNet)
BrowserChooser
Change the default iOS browser. Must have for third-party browser users. Makes links in all iOS apps open in selected browser.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for BrowserChooser)
3G Unrestrictor
Use your cellular data for applications that are Wi-Fi only. Works with YouTube, FaceTime, games and more.
Price: $3.99
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for 3G Unrestrictor)
Safari Download Manager
Beautiful download manager for downloading any file from Safari. Allows you to download up to 10 files at a time.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Safari Download Manager)
Tab+
Enable more than nine tabs on your iPad. Designed for iPad, but will also add more tabs to iPod touch and iPhone.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Tab+)
Springboard Tweaks
Dashboard X
Add widgets to your device’s home screen and a dedicated widgets window. Support for tons of third party widgets such as Twitter, music controls and more.
Price: $1.99
Available from repository: http://apt.modmyi.com/
(search for Dashboard X)
FakeCarrier
Change the carrier name on your phone to anything you want. Has easy to use settings screen. Simply type in new carrier text and you are ready to go.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for FakeCarrier)
WiCarrier
Show the connected Wi-Fi network next to the signal bars. Helpful for people who change networks so they know which one that are connected to at a glance.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for WiCarrier)
FolderEnhancer
Improve the performance and features of iOS folders. Place folders in folders, change the look and feel of folders and more.
Price: $1.99
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for FolderEnhancer)
Infinidock
Add as many apps as you want to the dock. Apps scroll as you move through them. Makes it much easier to access the apps you use all the time.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Infinidock)
Springtomize
Customize almost every aspect of your iOS device’s Springboard. Easy to use interface that even new jailbreakers can understand.
Price: $2.99
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Springtomize)
Infinifolders
Add as many apps as you want to iOS folders. Don’t let Apple limit your folders any more. Easy to set up and you can use your folders how you want.
Price: $1.99
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Infinifolders)
Visual Enhancers
Winterboard
Customize the look of your iOS device with themes. Themes can be downloaded through Cydia and change everything from icons to sounds.
Price: free
Available from repository: http://apt.saurik.com/
(search for Winterboard)
DreamBoard
Completely change the look of iOS. Like Winterboard but with deeper customization. Make your device look like an Android, Mac or more.
Price: free
Available from repository: http://apt.modmyi.com/
(search for DreamBoard)
Lock Screen Tweaks
AnyLockApp
Set the lock screen camera button to launch any app. By default, the camera is shown here. With this extension you can make a third party camera or any app launch.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for AnyLockApp)
IntelliscreenX
Greatly enhances iOS lock screen with tons of options. Add email, weather, settings toggles, SMS and more.
Price: $9.99
Available from repository: http://apt.modmyi.com/
(search for IntelliscreenX)
Messaging/Keyboard
BiteSMS
Adds every tweak to text messaging you could want. Tweaks include quick reply, contact photos in messages, enhanced smileys, and so much more.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for BteSMS)
ManualCorrect
No more automatic corrections when typing on your iOS device. With this tweak, you manually approve all corrections.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for ManualCorrect)
SMSConfirmation
Receive a confirmation message when you successfully send an SMS.
Price: free
Available from repository: http://apt.modmyi.com/
(search for SMSConfirmation)
Siri Tweaks
AssistantExtensions
Take Siri to the next level. Add tweaks to make Siri do more than you ever thought possible such as tweet, post to Facebook and more.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for AssistantExtensions)
VoiceUtils
Perform system commands such as restart, respring and more with Siri. Quickest way to get access to your importing settings on your iOS device.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for VoiceUtils)
System Tweaks
Activator
Add custom actions to make your device do almost anything. Add swipe, tap, hold and all kinds of gestures that take controlling your iOS device to a higher level.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Activator)
SBSettings
Add frequently used settings toggles to Notification Center. Also adds an Activator drop down box to control Wi-Fi, 3G, location and other popular settings.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for SBSettings)
iFile
Access your device’s file system. Copy, move, cut and paste files to other folders.
Price: free trial, $4
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for iFile)
PlayAwake
Use any song from your music library for your alarm clock. Choose the song to play directly from iOS Clock app
Price: $1.99
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for PlayAwake)
Zephyr
Adds multitasking gestures to iOS devices. Allows you to more easily control iOS multitasking functions.
Price: $4.99
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for Zephyr)
CyDelete
Delete Cydia packages as if they were App Store apps. Normally, you have to go to Cydia to remove a package, with this tweak, that’s not longer needed.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for CyDelete)
xCon
Use apps that block jailbroken devices. Many iOS apps detect a jailbroken device and will not let them run. This tweak gets rid of that and lets you run the apps in peace.
Price: free
Available from repository: http://apt.modmyi.com/
(search for xCon)
PasswordPilot
Automatically sign in to iTunes when downloading a new app. Simply inserts your password when you download an app. Not recommended if other people use your device.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for PasswordPilot)
WeeFlashlight for Notification Center
Flashlight that sits in the Notification Center. Simply tap the button and your camera flash will turn on. Tap it again, and it will turn off.
Price: free
Available from repository: http://apt.bigboss.us.com/repofiles/cydia/
(search for WeeFlashlight)
F.lux
Adjust the light on your iPhone to better match room conditions. Warms the colors of your device in the evening to match conditions better.
Price: free
Available from repository: http://apt.saurik.com/
(search for F.Lux)