Mattermost
Description: Mattermost is an open-source, self-hosted online chat service with file sharing, search and integration capabilities. It supports text, images, videos and custom emojis across PCs and phones with instant notifications.
Type: software
Pricing: Freemium
Notability
Description: Notability is a popular note-taking and annotation app for iOS and macOS. It allows users to take handwritten notes, type notes, record audio, annotate PDFs and more. Key features include advanced organization with search and tagging, auto-backup to the cloud, and easy sharing options.
Type: software
Pricing: Paid