If you purchased PeakHour 3, you can upgrade to PeakHour 4 at a discounted price.
To purchase an upgrade, do the following:
First, make sure you have the latest version of PeakHour 3 installed and activated.
If you can't locate your PeakHour 3 license key, visit peakhourapp.com and click Recover License under Help & Support.
If a valid version of PeakHour 3 is detected, you'll be presented with the upgrade prompt:
If you don't see the pop-up, check to make sure you have the latest version of PeakHour 3 installed.
Mac Appstore: Make sure the latest version is installed in