Windows 10 or later is required to install Project Professional 2019 and Project Standard 2019. Project Online Professional runs on Windows 10, Windows 8.1, Windows 8, and Windows 7 with Service Pack 1. Learn more about system requirements here.
Microsoft Edge, Internet Explorer 11, Mozilla Firefox (latest released version and immediate previous version), Apple Safari (latest released version), Google Chrome (latest released version).
You can install Project Online Professional on up to five PCs.
The core features of the two products are identical when initially purchased. However, Project Online Professional always gives you the latest version of Project. Project Professional has a perpetual license—once activated, the software will not expire. Project Online Professional requires an active subscription.