A free program for Android, by Pro Soft-Hub.
WhatsDelete is an app that lets you view deleted messages on WhatsApp. If a friend deletes a message before you can read it, you will still be able to view it.
The app is free, so you do not need to pay to use it.
How does it work?
To use WhatsDelete, you will need to install it and give it all permissions that it requires. You will then need to open the original WhatsApp messenger app and watch the status of WhatsApp and other media files. You will then be notified when someone deletes their message.
Now you can see all of your chats friend by friend and view media files.
