WhatsApp is one of the most popular instant messaging apps used globally, with over 2 billion users. This paper provides an in-depth analysis of WhatsApp on Android 4.4.2, exploring its features, security, and performance. We examine the app's architecture, data storage, and communication protocols. We also investigate the security measures employed by WhatsApp, including end-to-end encryption, and evaluate its performance on Android 4.4.2.
WhatsApp ended support for Android 4.4.2 and below in January 2025 . whatsapp for android 4.4.2
(As of 2026 – verify before installing) WhatsApp is one of the most popular instant
Starting September 8, 2026 , the minimum requirement will increase to Android 6.0 (Marshmallow) . exploring its features