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A comment on WhatsApp scaled to 1B users with only 50 engineers. Parent comment

Re:WhatsApp scaled to 1B users with only 50 engineers by ducklingslicks on Monday October 25, 2021 @04:22AM (#28985587)
I think it was free on Android but not on iOS. But not completely sure because I only had Android back then
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Re:WhatsApp scaled to 1B users with only 50 engineers by robjan on Monday October 25, 2021 @06:40AM (#28986288)
It was a one off payment on iOS but a poorly enforced annual subscription on Android
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