HOLY QURAN funktioniert nicht

A new toolbar has been added to Holy Quran pages to quickly access useful functions such as save bookmark, night-mode, page sound, page overlay and settings.  Page preset gives you a totally changed look of Quran pages with beautiful combination of colored background and text.  Holy Quran has a real page turning effect, elegant style, smooth Nastaliq font and different modes for better readability.  It will make a colored overlay as a shield layer in front of pages to protect your eyes from sharpness of colors and brightness.  While reading just tap the bookmark icon in quick toolbar to save the current page.  It will turn the background black and text into white color which will give you more comfortable reading screen at night or in low light conditions.  If quick toolbar is turned off then you can save the current page by pressing volume-up button.  You can change font color of pages, whichever you like from given five font colors.  If your eyes are not comfortable with any color or brightness of pages then page-overlay is for you.  Resume option will take you to the page where you left reading last time.  Save your favorite surah or page with unlimited bookmarks.  Now it comes with bundle of new customization options for giving your eyes extreme comfort while reading.  With go-to page number option you can jump to a page instantly.  Enhance your recitation and spiritual experience with the real feel of actual printed Quran anytime anywhere.  You can set the color shade and intensity of overlay from settings.  Most of the applications require 100MB to 500MB external data download after installation, but this app doesn’t need any external data.