macOS version: 10.15.1
Kap version: 3.0.0
Downloaded Kap from https://getkap.co/ and then tried to launch after installing macOS Catalina
When trying to launch I get a popup saying it needs to be updated by the developer:

It would let me open it and try it out :)
Hey @berlinjohnson, as a workaround while we try to resolve this:
If you're on macOS 10.15, after you move Kap to the Applications directory, right-click on Kap, and select Open. You only need to do this once.
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Hey @berlinjohnson, as a workaround while we try to resolve this: