SMS/Whatsapp
SMS is a standard feature on most mobile phones and works by sending text messages through a cellular network. SMS marketing software is a simple and effective way to communicate with friends, family, and colleagues who also have mobile phones.
WhatsApp, on the other hand, is a cross-platform instant messaging app that allows users to send text messages, and voice messages, make voice and video calls, and share images and videos with other WhatsApp users. WhatsApp marketing software uses an internet connection (Wi-Fi or mobile data) to send messages and make calls, so it does not require a cellular network.
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