Recover Deleted Messages Unseen (formerly Deleted Messages) is a powerful application to read deleted messages. 

How to use the app?

Download and install the application on your device.

After installing the application, it will ask you to give permission to access notifications.

The application uses permission to read your notifications. It does not use permission to access your photos, media, or other personal information.

To start using the application, open it and select "Recover Deleted Messages."

Select one of the supported chat apps from the list.

After opening the app, it will ask you to give permission to access notifications.

After downloading and installing, the application will prompt you to grant access. Hide your privacy on supported chat apps and grant that Access permission.