As you know, some months ago, WhatsApp introduced a new function to its chat and messaging application that allows us to delete messages that we've already sent to both contacts or groups. This allows us to delete from any conversation any message that we may have sent by mistake.
How to read messages deleted on WhatsApp?
This question can be answered quite easily thanks to Notification History as it allows to do so in a very simple manner. After installing the APK, the user grants permissions for the app to access the activity of different apps as is the case of WhatsApp, storing a real-time log of all the messages arrived on the phone. Thus, even if the user deletes them after sending them, Notification History will already have a registry of the message that we can read whenever we want.
This application can be used with other apps apart from WhatsApp, such as WeChat, Facebook Messenger, and even email apps of the likes of Gmail.
A simple notification log that allows us to read the messages deleted on WhatsApp.
However, before you get too excited about the possibility of reading all those messages that your contacts delete before you get around to reading them, you have to bear in mind that you're granting access to all your messages, and you really don't know how the app is going to use all the information. It's a detail to be taken into account regarding your privacy. By the way, you can download the application for free, although it also comes along with a Pro or Premium version with advanced functions.