All the apps are now 64-bit compatible to make them faster and more responsive for users. They are also free for any new OS X or iOS 7 devices.
The apps within the iLife and iWork suites are available to download right now from the App Store.
Apple has also added collaboration for iCloud, which means multiple users can now edit documents at the same time with live updates.
"This is the biggest day for apps in Apple's history", said Eddy Cue, Apple's Senior Vice President of Internet Software and Services. "These new version deliver seamless experiences across devices that you can't find anywhere else and are packed with great features like iMovie Theater, Drummer and a new unified file format for iWork documents across all your devices."
The new iPhoto app for iOS has a clean new design that makes it simpler and "more beautiful" to use. There's new tools and effects to edit your photos and the ability to create custom slideshows.
Users can also make Photobooks on their iPad and iPhone, like they could with the OS X version.
There’s new functionality for iMovie on iOS devices that offer easier access to the video library and share clips. Simplified editing tools mean you can do picture in picture and utilise other editing tools directly on the iPhone or iPad.
The Mac desktop version has been updated to make it easier to browse and share as well.
Apple has also introduced iMovie Theatre that combines all your movies and trailers in one place and then shared using iCloud.
GarageBand has also been updated for iOS 7 too. The app will now live update across all iOS and OS X devices.
On iOS you now have 32 tracks, while on the Mac you’re treated to a new sound library presented within an entirely new design.
The Mac version has a new feature called Drummer that will virtually accompany all your songs, but you can interact with it too. It is powered by the performance from some of the most famous drummers, and GarageBand will offer you various tools to change the way it sounds.
You can try out various drummers, and you can add more drummers, tracks and other content via a “single in-app purchase”.
The new UI makes it “easier to do things while at the same time being more powerful,” claims Apple. The iLife suite has also been completely re-written for the Mac in the biggest update ever.
You’ll get complete full file compatibility across iOS, Mac and the web versions of all three iWork apps.
"iWork introduces a new, unified file format, delivering perfect document fidelity across Mac, iOs and iCloud, and the iWork for iCloud beta now includes support for real-time collaboration."
There’s a new context-sensitive format panel that will act more like Microsoft Word than the previous iteration. “What’s great about this is that we’re not cluttering the screen with a lot of controls.”
All the charts in Numbers now Live Update across all devices and both the OS X Mavericks and iOS 7 versions offer new UI designs.
The new Keynote comes with new effects and animations that were showcased during the iPad launch event.