Asides what the other user said about metadata, Signal is drastically better at multi-device support. WhatsApp only lets you log in one non-phone device at a ti

Asides what the other user said about metadata, Signal is drastically better at multi-device support. WhatsApp only lets you log in one non-phone device at a time, and this device syncs via your phone so it doesn’t work if your phone is offline, and it doesn’t have an iPadOS app. Signal has desktop and iPadOS apps, and they all function independently of your phone once set up.