Top guest messaging platforms are tools that let hotels communicate with guests through SMS, WhatsApp, and chat in a unified inbox, improving response time and guest experience across the stay journey; platforms like Kipsu, Whistle, ALICE, Canary, Akia, and Guestara differ in automation, PMS integration, AI replies, and multi-channel support, as some focus on real-time human conversations while others automate upselling and support, so you should choose the top platform based on your property size, need for automation, and integration with hotel systems.