If you just need to add to-dos from a non-Apple device to Things, you can use our handy Mail to Things feature. You can also use the iCloud website to enter to-dos into Reminders and then import them into Things later. Sharing a list with family or coworkers Things currently does not have any dedicated collaboration features collaborating on a specific list or task. You can, however, share one Things Cloud account with someone else to collaborate on the entire content of that account. Are there bundles for all three apps?
Your Mac. As good as new. Version 3.