mdReview - Markdown Editor is an open-source editor designed for reviewing Markdown documents on a mobile device. Users can add sticky notes or comments to Markdown files and display or edit revisions using CriticMarkup syntax. The app renders Mermaid diagrams in documents, supports dark mode and custom themes, and can import text or Markdown files through the system share sheet. These tools can help a reader review and annotate a document while away from a desktop editor. The store description calls mdReview completely free and does not list subscriptions or paid features. It does not describe cloud sync, collaboration, or export beyond importing files from other apps, so users should check how their documents are stored and shared before relying on a particular workflow.
