If you don't feel comfortable with the mobile version (that obviously is not infected with malware and keyloggers) you can download the desktop version from the site
https://eidoo.io/desktop-downloadAnd that changes what exactly ?
No one implied that the google is infecting applications in their playstore.
It doesn't matter where the application is downloaded from. If the developer are not trusted, the risk is everywhere the same. Well, theoretically it is higher when not downloading from the playstore, but ignoring this fact for now.
Downloading a desktop wallet from a completely unknown site isn't safer either.
The difference is just that it is easier to create malware for desktop systems than android, with higher privileges and more access to data.