Amethyst vs Raindrop.io

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.

Raindrop.io is Bookmark manager with collections, tags, full-text search, and cross-platform sync.. It is available under a freemium model. This tool falls under the productivity category.