Hp printer?

I'm trying to connect my Hp printer to the mobile phone, Huawei P30. None of the apps used by Hp works. The printer is displayed but does not connect. I also made sure that the cell phone and printer are connected to the same Wi-Fi. Copying goes and test pages go too. I wanted z. B. Print an attachment to a mail.

I found an app, but it costs money.

Can you also print for free?

Download the attachment and open it. Maybe then you can print.

I already have it, unfortunately not possible

Then transfer to PC and print from there.