Frictionless guest check‑in: appless web, SMS & automation UX

Independent hotels, short‑term rentals and B&Bs routinely lose revenue and guest satisfaction to poor check‑in experiences: queues, missed messages, late arrivals and manual key handoffs create friction for staff and guests alike. This problem is especially acute for the roughly 20M hospitality properties that lack enterprise front‑desk engineering resources and therefore rely on costly, inconsistent manual processes. A viable product is an appless web + SMS/RCS flow that uses a single link or QR, progressive web forms for ID and payments, automated guest messaging and dynamic access provisioning to cloud locks, with out‑of‑the‑box integrations to top PMS and lock vendors. The timing is favorable: the TAM is approximately $12.0B (20M properties × $600 ARPU/year), regulators and guests expect contactless experiences, messaging is ubiquitous, and cloud locks plus standardized APIs are becoming common—hence the high market score (95/100) and strong revenue potential (88/100). This space is moderately competitive, so differentiation requires obsessing on reliability and integrations: best‑in‑class SMS deliverability, local phone number coverage, frictionless appless UX, and certified integrations with the top 10 lock and PMS platforms. Challenges are real—API fragmentation, KYC/fraud controls, regulatory compliance and longer sales cycles for larger operators—but if your team can execute on broad, robust integrations and messaging reliability, this is a practical, high‑value opportunity worth pursuing.