I assume that you have the app-menu package installed and “unknown sources” enabled.
- Email yourself the .apk file
- Go to webmail and download the application.
- Click “package install”. In my experience, this does not always work the first time. If errors – keep trying. Wait a while to make sure the file is indeed downloaded.
- OK – the apk is installed but you will not see it in “APP” menu anywhere. You need to search for it.
- Press the N button under the screen. Select “search”.
- For the “app-menu” look for “AppMenu”
- The other app – look for “know”