This article describes the steps to delete all emails at once in the official Gmail app on iPhone and Android. While it’s impossible to empty your entire Gmail inbox with a single tap in the app, you can delete batches of up to 251 emails at once and repeat the process until you’ve deleted as many as you want.
How to delete all or multiple emails in Gmail at once?
Below are the steps on how to empty your inbox in the Gmail app by deleting multiple emails in batches.
Open the Gmail app and swipe up repeatedly to scroll down and load as many emails as possible.
Tap Select All. Every visible email in your inbox will now be selected.
