Reactotron comes in two versions. A desktop version (available on macOS, Linux, and Windows) or a CLI (available only on macOS).
Download macOS App from GitHub release and drop the Reactotron.app to the Applications folder.
Download 32 bit Linux App or 64 bit Linux App.
Download 32 bit Windows App or 64 bit Windows App
Reactotron is also available via Homebrew Cask package manager. To ensure you get the latest version, update Homebrew first:
brew update
Then simply type:
brew cask install reactotron
If you like to kick it old-school and use the terminal, Reactotron is available via NPM.
To install globally:
npm install -g reactotron-cli
In order to pickup updates going forward, you can type the same command again.