Raindrop.io - All your articles, photos, video & content from web & apps in one place.
ReadMo - Reading mode with an audio player 📖🎧
Linker - Cloud based bookmark manager
POLAR - A powerful document manager for Mac, Windows, and Linux for managing web content, books, and notes and supports tagging, annotation, highlighting and keeps track of your reading progress.
Bookmark OS - Bookmark OS is like Mac or Windows optimized for bookmarks.
Periodical - This application calculates the fertile days according to Knaus-Ogino.