Hi Mischelle,
thanks
Sendpilot’s landing page seems to be built on wordpress, while app.sendpilot.co built on Bubble.
there are a few solutions to wrap an app built on Bubble (in fact any website) into desktop Mac or Windows app.
here are some links that you could check out
https://desktop.appmaker.xyz - free
https://electronjs.org/
Convert Bubble App to Windows/Linux/Mac/Chrome application or Chrome pop-up Plugin
hope this helps