Too Long; Didn't Read
The October 4th shutdown in which users of WhatsApp all over the globe were unable to send and receive messages for up to six hours establishes a fact: WhatsApp is not indispensable. WhatsApp is the most globally downloaded app with 924 and 850 million downloads respectively. In January 2021, WhatsApp will stop working on phones running Android 4.0.3 as well as iPhones running on iOS 9 or before. Users have migrated to apps like Telegram and Viber, Discord and Threema as good alternatives for WhatsApp.