Microsoft Edge, Internet Explorer 11, Mozilla Firefox (latest released version and immediate previous version), Apple Safari (latest released version) and Google Chrome (latest released version).
Yes. 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 licence – once activated, the software will not expire. Project Online Professional requires an active subscription.