VDR arranges most documents you import into a clean, easy to read format that is customizable. Can control the size of margins, select from several fonts & adjust the size, change text, background & highlight colours. Can swipe and view text in original layout/format or view as plain text and lose all the formatting for a simpler view of material.
Just click on a new page or new paragraph to skip boring sections. Also, allows speed increments changes to a very small accurate degree - i.e. to read at the right speed.
If you look at the screen while the app is reading, the text scrolls and emphasizes the sentence and the individual words as they are read, kinda like high quality karaoke lyrics.
In Pocket, this is a paid function - but Instapaper provides this for free! If a webpage is deleted, it remains in your Instapaper and they even archive pictures of the articles.
Instapaper allows you to choose from 14 different fonts, some of which have been designed specifically for the application. You can manually adjust spacing between lines, padding around text and font size to fit your preferences.
The search function is very slow and does not provide accurate results. The user can not filter or reorder the search results, or search the archive or annotated articles.