Updates and improvements aside, Catalina also makes Apple own services more accessible.
Several apps have been rebuilt from the ground up and several features heavily redesigned.
With the new iPadOS, Apple has tweaked the existing iOS platform to suit the needs of iPad users.
Here's a list of all iPhones compatible with iOS 13 and iPad models compatible with the new iPadOS.
A majority of the security tools Google offers still depend a lot on the user, while Apple's does not.
Apple has clarified that the company has no current plans to end support for iTunes on Windows.
iTunes has felt quite neglected over the past few years and it was but obvious that Apple would discontinue it.
The Mac Pro is powered by an Intel Xeon CPU with up to 28 cores and dual AMD Radeon Pro Vega II Duo GPUs
Apple also showcased SwiftUI that makes it easier to develop apps in the Apple ecosystem.
Apple has maintained that its tight control of the store allows it to protect user privacy.
The opening keynote at WWDC has always been more about Apple's annual public software refreshes.
Other rumoured announcements include a new Mac Pro desktop, and 31.6-inch 6K "pro" display.
Apple's iPhone and iPad users currently use iTunes to manage backups and stored data.
In a declining PC market where Windows devices outnumber Macs, what's Apple's PC strategy?
Switching on Dark Mode on iOS 13 is expected to be as simple as tapping on a button in Control Center.
The models are likely the successors to the existing line-up that will be launched in September
The next update to iOS is by far the biggest announcement that is expected at WWDC.
As per Kuo, Apple's 6K display will likely launch at WWDC 2019 which is set to begin on 3 June.
Apple is expected to announce iOS 13, macOS 10.15, watchOS 6 and tvOS 13 at this years WWDC.