On Windows, syncing files is built into the operating system - it's part of Windows itself. So, Concepts is designed to take advantage of this.
By default, your Concepts drawings live in a folder called "Concepts" in your Documents folder. Depending on how you have set up Windows, this might be private to your device, or it might already being sycned to the cloud. E.g. many new PCs are setup to sync the Documents folder to OneDrive. If this is the case then your drawings are already syncing between PCs that are setup the same way.
Alternatively, you can change where your drawings are automatically stored by Concepts. You can change it to any local folder including a folder that is synced to a cloud service like OneDrive, Google Drive, Dropbox or Box. To change the location:
- Go to the Gallery
- Tap Settings in the top right corner
- In the "Gallery Folder Location" section, tap Change...
- Choose a new location for your drawings (e.g. a cloud synced folder)
- Confirm whether you want to copy your existing collection of drawings to the new location
Repeat this on any other Windows PCs that you want to sync your drawings with.
Important Note: be careful about editing the same drawing at the same time on multiple devices or if you are editing while offline. It's possible to lose content if there are changes in multiple places that are then synced up. One version of the drawing will "win" and the other versions will be permanently lost.
To sync Concepts drawings between Windows and Android check out this FAQ.