- iPhone and iPad running iOS 26 or iPadOS 26 and later. This is the full app, including Apple Pencil annotation.
- Mac running macOS 26.2 and later. It is a native Mac app with its own windows and menus. Annotations are view-only on the Mac; see What’s different on Mac.
- Apple Watch running watchOS 26 and later. The Watch app is a standalone haptic metronome.
- Widgets for the Home Screen and the Mac desktop.
A few features need iOS 27 or macOS 27 and are marked that way in these articles.