OOONA is a cloud-based platform.
Your project is automatically saved every two minutes by default. To set time interval for the automatic backup, go to Settings->User Configuration->General Tab.
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Manual Save
You can click on click on "Project" -> "Save" >Save in the menu or the Save button on the toolbar.
You can also use the save hotkey. The default value is "Ctrl+S". You can check what hotkey is associated with the "Save current project" action in the hotkeys dialog. If you have a poor internet connection, make sure to back up backup your project locally. To download a project to your computer, click Project > Download ->Download project.