WhatsApp tam sim no yog qhov nrov tshaj plaws kev xa xov app hauv ntiaj teb, nrog ntau dua ob lab tus neeg siv txhua hli. Tus naj npawb ntawm cov neeg siv txhua hli ntawm Whatsapp yog siab dua li ntawm Facebook Messenger (1,3 billion), WeChat (1,2 billion), QQ (617 lab) thiab Telegram (500 lab).
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