Ok thank you Vikram. Yes, all my versions of Enpass are through the Apple App Store. Lastly, so if I delete Enpass on the old Mac, can I assume that my mobile and other Mac will still have all the Enpass app and data still ...so that I can keep on using Enpass on other devices?
How do I remove all data and any evidence of Enpass on a MAC (that I will no longer own) but ensure it stays with me on other devices? (I use it in iCloud to sync my use of Enpass on different devices).