How I Designed the Backend System for a DIGITAL BUSINESS CARD: Popl, Dialo, Mobilo

Mar 14, 2025 · 2 min read · Introduction In this blog, we will design the backend system of a DIGITAL BUSINESS CARD and explore how companies like Popl, Dialo, Mobilo, HiHello, etc. build robust, scalable, and powerful systems. These systems handle everything from QR code scann...