How WhatsApp Works Without Internet: Offline Messaging and Sync ExplainedIntroduction Have you ever sent a WhatsApp message in airplane mode and noticed something interesting? The message immediately appears in your chat even though there is no internet. Later, when internMay 26 · 10 min readblog.bkakoti.com
How Instagram Stores Reels, Photos and Drafts Behind the ScenesIntroduction Have you ever recorded a Reel on Instagram, saved it as a draft, closed the app and later found it still there? Or noticed how photos and videos load almost instantly while scrolling? BehMay 26 · 10 min readblog.bkakoti.com
Expo Router vs React Navigation — Which One Should You Use in 2026?Introduction Navigation is one of the most important parts of every mobile application. Whether it is Instagram, WhatsApp, Uber or Netflix — users constantly move between screens. Examples: Login → HMay 22 · 11 min readblog.bkakoti.com
How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo RouterThe New Era of Mobile App Architecture Modern mobile apps are no longer simple applications with a few screens and API calls. Apps like Instagram, WhatsApp, Uber and Netflix handle: Millions of activMay 22 · 14 min readblog.bkakoti.com
Inside React: How the Virtual DOM Powers Fast UI UpdatesIntroduction Modern web applications change their user interface very frequently. For example, when we like a post, type in a search box or update a counter, the page changes instantly. Updating the bMay 8 · 5 min readblog.bkakoti.com
