Amethyst vs Instapaper

Amethyst is a free, open-source tiling window manager for macOS inspired by xmonad. It automatically arranges application windows into non-overlapping layouts using keyboard shortcuts, without requiring System Integrity Protection to be disabled. Amethyst supports multiple layout algorithms including tall, wide, fullscreen, and column layouts.

Instapaper is a productivity tool that read-later app that strips articles to text for distraction-free reading. It offers a freemium pricing model.