Accessibility about app DeePl on Mac with M1 provessor

Hello all.
I am a translator and for my job I use currently the app DeePl. There is a version for Mac, but when I tried to install, I am not sure if I isntalled it, because I didn't see it between the apps, and I never have been able tu use it. Because of this, I would like to ask, if someone uses the DeePl app on the Mac and if it is accessible, specially for enter our username and password, for using the Pro versión. If someone would like to try the address for downloading it is: www.deepl.com
Many thanks in advance
María