Slicereader I made for my own use primarily, so I took the liberty of making decisions which other people may or may not like. Decisions like the page (window) size: It’s fixed, you may not resize it. The font is fixed, so is the line height. You may not skip forward to a paragraph, and there are no keys for moving to the start or end of the article.
I wish more software had such a strong philosophy and self-awareness.