How do you know if someone is using FM on WhatsApp?

The only way to find out who has viewed your profile on WhatsApp is to install an app like FM Whatsapp, which will keep track of all the people who have viewed your profile.It also has an option of themes available to change how the entire apps and its settings look.Fm WhatsApp Download APK is an alternative to WhatsApp. Which have advanced features with the best interface. It includes customization, different themes, the password for the conversations, and protecting privacy. WhatsApp provides security and end-to-end encryption for chatting.