eReading Platform - SifriApp & EsEngine ePub3 SDK

SifriApp on iOS, Android & Web

One engine, every kind of book

Our eReading apps offer a professional reading experience with a multilingual interface, ePub2 & ePub3 support, RTL and audio-layer support, the ability to open local DRM-free files, and to download eDRM-protected books from a private cloud library. Utilizing our EsEngine SDK, we were the first to bring a professional reading experience to RTL users - Hebrew & Arabic. And it's not only native apps: the same engine also powers reading EPUB3 books directly in the web browser - no installation required.

Platform capabilities

Everything a modern reader expects - and more

Cloud Library

A free private cloud library from which users download the books they purchased.

OPDS

External OPDS interface for publishing catalogs to other reading apps.

Audio Books

ePub3 audio-books with full media-layer synchronization.

sifriDRM

Multi-layer DRM per device for offline protection; social DRM for free books.

Shopping

In-app purchases or external shopping - saving you 30% more royalties per sale.

Push Notifications

In-app push for marketing and promotions, with call-to-action support.

Multilingual + RTL

Full RTL layout and page-progression meta support across the interface.

Free books

Access free books from open OPDS catalogs across the internet.

Reading position

Auto save & restore, with optional online sync across multiple devices.

Files import

Open local non-DRM eBooks; scan and import private book folders.

Bookmarks

Unlimited bookmarks, with optional multi-device online synchronization.

Offline reading

Books stored locally for offline reading - free and DRM-protected alike.

EPUB3

Reflowable & Fixed-Layout, tables, side/aside notes, media layer and JavaScript.

PLR

Advanced Public Lending Right - lend books on subscription with limits.

Simple ID

No complicated DRM-ID - we identify users by their email address.

Notes & Highlights

Colour highlights and unlimited personal side-notes on any selection.

PDF support

PDF view and re-flow, with full DRM protection.

Samples books

Every book can link to a free sample - to attract readers or support sale.

Web browser reading

Read EPUB3 books directly in any modern web browser - no app install needed, same EsEngine rendering.

EsEngine EPUB3 SDK

Building your own reading app?

Developing or designing your own reading application? The EsEngine ePub3 SDK can be easily integrated into a reading application to open and render any compatible eBook you wish to support.

We offer the engine in more than one flavour - a Cordova-based engine and a Folio-based engine. We match the right one to each client's needs and requests, whether you're building a hybrid app or a native reading experience.

Cordova-based engine Folio-based engine

EsEngine ePub3 SDK - Cordova & Folio based

Free OPDS

App settings

PLR support

Login integration

Custom catalogs

Academic feature

Live catalog

Public Lending Right (PLR)

A real, working PLR solution

Searching for a real working solution for PLR? Search no more. Our application framework, combined with the CloudManager, provides a working solution for most real-world PLR needs - time limits, download counts and numerous conditions enabling monthly subscriptions or any lending program you can wish for.