On an older Mac? There's a workaround to download all three iWorks apps for free. Redmond Pie offers the trick: Basically, you download and install the iWork '09 trial on your Mac, launch and quit. Latest post to my blog: 09 trial version is available on http://mac.softpedia.com/get/Business/Apple-iWork-06.shtmlEDI.
| Click here to return to the 'Free iLife and iWork apps also available for your older iOS devices' hint |



That's also true with your Mac purchases: If you buy a new Mac you can download the latest version of all the iLife applications on your pre-Mac App Store macs.
I guess that is also true for iWork for the Mac now that it comes free with new Macs.
How To Get Iwork For Free On Older Macs For Sale
This even applies to replacement devices. My iPhone 5 was replaced in an Apple store and two weeks ago and I qualified for Pages, Keynote and Numbers afterwards.
And here's a work-around if you want them, but didn't get a new iPhone... I have an iPhone 5. I won't upgrade til next year (likely the iPhone 6 or whatever they call it). But my daughter (11 years old) went from a 4 to a 5C. She doesn't use or need iWork. So I logged into the App Store on her phone under my ID and downloaded them. I then logged out and had her log back in and delete them. I then went to my iPhone 5 and iPad Mini and they were now available to download, not purchase. :) The *free* part... the get them free with a new device is tied to the device, not the iTunes/AppStore ID. :)
In short: you can install apps for OS X or iOS on up to 5 devices that are associated with your AppleID.
Mac and iOS users with old hardware can now get some of Apple's fundamental software for free. According to a report from MacRumors, the iWork and iLife suite of apps, including iMovie, Numbers, Keynote, Pages, and GarageBand for Mac and iOS, are now listed as free in the App Store.

Previously, users with old hardware had to pay for each app. Individual programs cost between $5 and $20 each, which would add up if a user with an old Mac or iOS device wanted to download and use both suites. In 2013, Apple made iWork and iLife apps free for new Mac and iOS customers, but that meant you had to purchase a new Apple device before you could download any of those apps at no cost. Until now, users with hardware released before 2013 still had to pay for iWork and iLife if they hadn't made a new Apple purchase recently.
How To Get Iwork For Free On Older Macs And Mac
Now there's no more confusion surrounding the availability of Apple's basic apps. Anyone with old Apple devices can download the latest versions of iWork and iLife apps for free with no strings attached. It might be too little, too late for some; Apple's App Store is so vast that users with old hardware probably found iWork- and iLife-equivalents to use. While we don't know if future updates of iWork and iLife apps will be compatible with all old devices, it's worthwhile to download the latest versions now.