After launching the Dark Mode feature for Android users, WhatsApp has also launched the Dark Mode feature for iOS users. Initially, this feature will only be available to some beta users. Dark mode has been confirmed in WhatsApp for iOS by the Macroomers Tech website.
iOS users can use the Dark mode under the TestFlight program. A new 2.20.30 update for WhatsApp beta users has been launched. This update will be operational for 90 days. After testing on the beta version it will be launched globally.
iOS beta users will have to select the Settings menu> Chats> Theme> Light / Dark option to turn on the dark mode.