Apps similar to Six Icon Dock include Springtomize. It's paid, but Five Icon Dock and Five-Column Springboard are free. Other options are Iconoclasm and Infinidock for iOS. In total there are five Dock Utilities like Six Icon Dock for iPhone and iPad.
Springtomize gives you an all-in-one settings page for tweaking the homescreen the homescreen of your jailbroken iPhone. You can disable elements you don't use, or customize the look of the icons, the dock, the folders, the status bar, and the lock screen.
Italy
EU
Tweaks the dock of your jailbroken iPhone so that it can fit five icons instead of four.
United States
Canada
Iconoclasm is a tweak that lets you break the barriers of what you can do with the app icons of your jailbroken iOS device. You can define as many rows or columns you want. You can even break free from rows and columns, and simply have icons placed freely on your home screen.
Canada
Infinidock is the ultimate dock customization tool for jailbroken iOS devices. You can add an unlimited number of icons, or however many you want to each page, and the dock will grow to accommodate them.
United States
