If you downloaded OmniFocus from the App Store, this opens an in-app purchase page where you can choose to buy Standard or Pro. If you downloaded OmniFocus from the Omni Group website, this opens a link to the Omni store where you can purchase OmniFocus if you haven’t yet. This is good for checking exactly which version you’re using. Open a window with details about your copy of OmniFocus.
Check for updates, view and modify your preferences, and enter new license information here. The OmniFocus menu holds commands related specifically to the administration of the OmniFocus application itself. This appendix explains the function of each of the items found in OmniFocus’s drop-down menus, and lists default keyboard shortcuts for them where they exist. Appendix A Menus Commands and Keyboard Shortcuts