Cloudshelf SDK is all you need to create world class reading apps for EPUB3

Simple. Powerful. Complete.

Cloudshelf SDK is a simple, powerful, and complete solution for adding EPUB3 support to your iOS and Android mobile apps. Our easy-to-implement framework with platform-native APIs makes it a snap to add ereader features to any mobile app, saving you many months of expense and time to market. Ask about our free evaluation license.


Download Cloudshelf Reader Preview App




Building your own reading app is easy with Cloudshelf SDK



Sample Code

The SDK includes sample app source code to get you up and

running quickly. Enjoy the freedom to integrate, innovate, and extend.

Try it with a free evaluation.



Focus on your core mission

We’ve done the heavy lifting for you. Deliver a world class reading experience that supports fixed layout and reflowable ebooks with audio, video and interactivity. This feature rich SDK comes with customizable reading settings, bookmarking, highlighting, search, navigational sliders, auto pagination and more.


Retain complete control

You retain control of your app user experience, and can customize and extend your mobile app however you see fit. Extending the Readium open source project, Cloudshelf SDK offers state-of-the-art EPUB processing and plug-and-play compatibility with Sony URMS DRM content protection technology for ebooks.


Ease & Performance

Much simpler and faster to

implement than the competition,

with better App performance,

stability, and feature set than any other reader app solution.



Forever License

Pay once and use it forever. No other licenses or renewals are required. Annual support and maintenance service plans are available as well as SDK source code options.



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