DaVinci Resolve is a video editing application created by Blackmagic Design. There are two versions available for both Mac and PC, DaVinci Resolve and DaVinci Resolve Studio. DaVinci Resolve is a free download and allows you to edit video of resolutions up to 4K (3840x2160 pixels) and frame rates up to 60 fps. DaVinci Resolve Studio is a one time purchase of $295 and allows you to edit video of resolutions higher than 4K and frame rates of up to 120 fps, and comes with a number of built in video effects and their Neural Engine AI tools. You can find both versions on their website.
Both the free and paid versions of DaVinci Resolve allow for collaborative cloud editing, allowing multiple people to work on a video project simultaneously across different computers. To do so, you must create a DaVinci Cloud account on their website. The account is free, but in order to create a collaborative cloud project, you must upgrade to one of their subscriptions, the bare minimum of which gives you 2 GB of cloud storage and 1 cloud project library for $5/month. As footage can be rather large, it would likely make more sense to use the option for 500 GB of storage and 1 project library for $15/month if you plan to use collaborative cloud editing in earnest. To create a cloud project library, when creating a new project, switch to the cloud tab in the project manager.
If you have started working on a project on one computer and need to transfer it to another, there are a few steps you need to take depending on whether or not you have your media files stored separately or on the same hard drive. The video below explains how to transfer just the project file, or the project file alongside all the media used in the project.