Amazon Kindle for iOS

Editors' take: As an alternative to iBooks, we highly recommend Amazon's Kindle e-book reader app. Though not quite as pretty as iBooks, the Kindle app gives you access to Amazon's slightly larger Kindle Store, plus you can read the Kindle books on your iPad, on your iPhone, your Mac or PC, and even your Kindle reader--if you happen to have one. Also, you are able to take notes on the Kindle app.

• Save preferred font and layout settings into custom themes. Located in Aa menu, themes allow you to toggle between favorite reading configurations with a single tap.
• Borrow, read, return and filter your comiXology Unlimited books in the app.