Help Gmail select all/mark all option?

[Deleted User]

So when I have a load of emails sitting in my inbox I have to tap check box on each on then delete to get rid.
Is there a way to mark them all in one go?

 

[Atma]

You can do it online but no, I don't believe you can batch select in the app. If there's an option to do that I've never seen it.