While on the surface WhatsApp remains the king of the messaging hill, beneath the surface there are some worrying signs for Facebookās flagship platform. With its 2 billion users, WhatsApp can seem unstoppable, but it has some weaknesses in its functionalityāin the way it works. And, above all, it has one dealbreaker for manyāits Facebook ownership. Signal App logo So, what are those functionality weaknesses? Well, thereās the continued lack of genuine support for multiple devicesāthe option to link apps on your phone, tablet and PC to a single account. Then thereās the serious flaw in its backup option, which is required to transfer message history to a new phone. Those back-ups fall outside WhatsAppās end-to-end encryptionāand thatās a critical issue. WhatsApp voice and video calling are excellentāfully encrypted, perfectly integrated with its messaging, single-click calls for the groups we use daily. But those callsāvideo or voiceāare constrained to our smallest sc...
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