How to use the iOS and Android reader apps

This guide explains how the iOS and the Android reader apps work. Do you need help with the desktop reader instead?

Attention: You cannot purchase any book through the iOS and Android apps. You have to do this through the store (browser-based) and then you can access the books on any app.


Library view

Our iOS and Android reader apps are very simple to use. They are almost identical, there are only small differences between large (tablet) and smaller (smartphone) screens. The first screen is the overview of the available books:

(1) Access your account
(2) Filter by user-defined category (you can set this on the book information view, #9) – This option may be invisible until you set your first category
(3) Sort books in the library any way it suites you best
(4) Use quick search to find a specific book
(5) Toggle list/grid view (only on larger screens)
(6) App info and basic settings
(7) Use full text search to find a specific word or phrase in all your purchased books
(8) Click on a book cover to load the book
(9) Click on the (i) icon to access the basic information about each book
(10) Put a book on your “desk” (like a favorites / quick-access list) – check #11 also
(11) Open “desk” from #10


Book view

Once you have loaded a book, there are many tools for you to use:

(1) Turn the pages (swipe left/right)
(2) Leave the book view and access the library view
(3) Load the table of contents for the current book
(4) Use full text search to find a specific word or phrase in all your purchased books
(5) View thumbnails of all the book’s pages for a quick overview (only available on tablets)
(6) Toggle the annotations menu on/off
(7) Show/hide annotations
(8) Add page to your bookmarks
(9) Go back (only active when using in-document links)
(10) Quickly navigate the book using the slider
(11) Open “desk” (see #10 in the Library view above)
(12) Share page (receiver must have purchased the same book in order to view it)


Audio playback

You can play the embedded audio files just by clicking on the relevant hotspots. These are always either over the instructions text or over a relevant area on the page, like a track number reference or a playing time reference. Watch out for the blue hue:

Audio hotspots

The tiny player then pops up on the upper menu:

Note: all audio files are also available on YouTube, you can find the direct link in the Media library (icon #14 – see above).



You can use the following annotation tools on the iOS and the Android reader apps:

(1) Free writing/drawing pen 1 (select to enable buttons #6, #7 and #8)
(2) Free writing/drawing pen 2 (select to enable buttons #6, #7 and #8)
(3) Text note (select to enable buttons #11, #12, #13 #14 and #15)
(4) Mass select annotations
(5) Eraser
(6) Pen color
(7) Pen thickness
(8) Pen opacity
(9) Delete selected annotation(s)
(10) Accept annotations and close annotations menu
(11) Note font size
(12) Note font color
(13) Note background color
(14) Note frame color
(15) Note frame thickness

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