Licensing & payments · Activating your licence
Should I keep my activation email?
Short answer: Yes. It holds your License Code, needed after a macOS reinstall or a move to a new Mac. If you lose it, the app can re-send the key to your purchase address.
Yes, it's worth keeping. It holds your License Code, which you'll need if you reinstall macOS, move to a new Mac or clear the app's settings.
If you do lose it, nothing is lost for good — use Email me my licence key again and it's re-sent to your purchase address.