Clipboard Everywhere: https://www.clipboardeverywhere.com, allows a user to seamlessly copy and paste between their devices.
I launched it around 5 months ago with Android and Windows desktop support, and recently added support for macOS.
If you want to copy something on one device, and then paste it on another, seamlessly; Clipboard Everywhere can do that. It also has some additional functionality, such as the clipboard history, end-to-end encryption, and a focus on privacy.
Check it out on the official website: https://www.clipboardeverywhere.com