There's a fair few free books released for Amazon's Kindle however they also offer apps for Windows; 8, 7, XP and Vista PCs, Apple's iPad, iPhone and Mac computers, many different ones for Android platforms on phones or tablets, find out more here:

Amazon.co.uk: Read Kindle ebooks everywhere with our free reading apps


The best reading experience on your Android phone or tablet, iPad, iPhone, Mac, Windows 8 PC or tablet.
Smartphones

iPhone & iPod touch Android Computers
Windows 8 Windows 7, XP & Vista Mac Tablets
iPad Android Tablet Windows 8


The best reading experience on your Android phone or tablet, iPad, iPhone, Mac, Windows 8 PC or tablet.

  • Buy Once, Read Everywhere: You don't need to own a Kindle device to enjoy Kindle books. Download one of our free Kindle apps to start reading Kindle books on all your devices. The Kindle app is available for every major smartphone, tablet, and computer. That means with our free Kindle Reading apps, you can buy a Kindle book once, and read it on any device with the Kindle app installed. And of course, you can also read that same Kindle book on a Kindle, Kindle Touch, or Kindle Keyboard if you own one.
  • With Amazonís Whispersync technology, you can automatically save and synchronize your furthest page read, bookmarks, notes, and highlights across all your devices. That means you can start reading a book on one device, and pick up where you left off on another device.
  • With the biggest selection of any e-bookstore in the UK, you can shop more than 1.5 million books, including bestsellers and new releases.
  • Get free book samples--read the first chapter for free before you decide to buy.
  • Whispersync technology saves and synchronises your last page read, bookmarks, notes, and highlights across your devices.
  • Adjust text size to make reading more comfortable.
  • Download and read Kindle books--no Kindle required.