I realize this isn't your specific problem but whenever I download any software, particularly software I paid for, I put a copy of the install package/executabl

I realize this isn't your specific problem but whenever I download any software, particularly software I paid for, I put a copy of the install package/executable somewhere where I can get it again (eg Google Drive, Dropbox) along with any license files associated. I've been burned too many times on not being able to find old copies of software I've actually paid for. The issue here is that the license is tied to the computer not the user and isn't necessarily transferable (within the ToS at least). I did take a quick look at the site and it does say "1 Mac" not "1 user". Is that not 100% clear? Maybe. But it's not a lie. Also, there is no non-lifetime option on that website so it's not like you went for a more premium license FWIW. Pretty much any version licenses (lifetime or otherwise) create a financial incentive to create a new version. This is kind of what Adobe did with Photoshop (pre-subscription). This was particularly noticeable with the RAW plugin. Whenever a new camera is added they just bumped the minimum version to force you to upgrade. I'm actually not fundamentally opposed to subscription models for software as there's no disincentive for bug-fixing and constant improvement. I mean how Adobe does it is terrible (eg dark patterns around resubscription, only annual pricing). But compare that to Jetbrains who has an outstanding subscription model.