The pros of using WhatsApp include its wide variety of features, such as real-time messaging, making calls, video chatting, file sharing and more. WhatsApp is also freely available for multiple platforms and devices and users can get notifications for messages or calls right on their devices. Additionally, the app is highly secure, with end-to-end encryption and other security measures.

The cons of using WhatsApp include the fact that users can experience difficulty in setting up the app and its features. Additionally, because WhatsApp is popular, hackers often target its users with malicious code and malware. Furthermore, WhatsApp is not immune to risks associated with account hijacking, and users must exercise caution when sharing personal data and important conversations. Lastly, the user-base of WhatsApp is very large, meaning that it can be hard to keep track of conversations or messages across multiple contacts.