Security and Privacy Comparison of Arattai, WhatsApp, and WeChat: India's Messaging App Landscape and Digital Sovereignty

Abstract

The messaging situation in India is on the brink, with a local platform Arattai competing with international WhatsApp and WeChat. This comparison provides the security design, available features, privacy policies, and strategic goals of the two products and positions them in the framework of the Indian push towards digital sovereignty and evolving user demands. India is where Arattai stores data and provides a username-based model, which is an alternate privacy platform compared to end-to-end encryption on WhatsApp owned by Meta and super-app platform on WeChat being controlled by Chinese regulators. The paper analyzes the encryption, data localization, regulatory compliance and user experience design of each platform. In so doing, it demonstrates how the technical decisions represent specific values and trade-offs. The results show that there is no platform that is superior in all aspects. Rather, each of them is supreme in specific areas of priority, such as defending local data, global interoperability, or tightly integrated ecosystem. As over 500 million Indians communicate through messaging applications to shop, do civic activities, and communicate, understanding such architectural differences is essential. It assists users, business, and policymakers in making wise choices that balance the privacy, feature requirements and digital independence in the ever more connected world.