Follow these steps to install Requestly Desktop App on Linux.
Download Requestly Desktop App for Linux from here. This should download the latest
AppImageof the Desktop App.
After downloading Requestly AppImage, browse to your downloads folder and open the Properties of the downloaded file.
Go to the Permissions tab and make sure that the file has the permissions to execute. If not, then enable it.
Double click to open the Requestly as any other app.