Simon 5 is coming soon!
Simon version 5 is currently in beta testing. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.
Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and will be a paid upgrade from Simon 4 after the beta. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).
Re: License issue
I think you may have misread the message; Simon doesn't have such a message. You should be able to add your license on two machines.
If it said something about "partially licensed", that means that you have a version 2 license, and need a version 3 upgrade.
Re: License issue
Ok, I tried again. The version of Simon is 3.0.1 the key is a Silver Upgrade to V3.
This time I entered the values manually and the key was accepted but the app still shows the '13 days left - buy now' alert.
Re: License issue
You need to have both your v2 license and your v3 upgrade entered. Sounds like it's missing the v2 license.
Re: License issue
Found out that I was using a different e-mail address for the basic license. Now it worked.
Thanks a lot.