WhatsApp has an estimated active userbase of approximately 3 billion. [2] The number of iMessage users is estimated to be about 1 billion. [3]
[1] https://explodingtopics.com/blog/iphone-android-users#iphone...
[2] https://www.statista.com/statistics/1306022/whatsapp-global-...
[3] https://usesignhouse.com/blog/imessage-stats/#:~:text=iMessa...
WhatsApp seems only to be used by the elderly/old in my circle of friends lately.
The transition has been gradual; started during the pandemic, I'd say.
When you consider Africa + ASEAN + India has 3.5B population and has very low iPhone market share that sort of Skew the figures.
I have impression that WhatsApp team just dont do anything for years.
My experience from few european countries is that middle class - tech/business/law people have iOS. Go to tech or business conference and its all iphones.
So its really easy to be in such circles. I live in EU country and its all iMessage or Signal. Nobody uses WhatsApp if something its Facebook Messenger or Instagram messages.
And since iMessages are seamless they are used very often between iOS users.