--- title: "#chaicode-mobile-dev-cohort-2026 articles | Hashnode" description: "Explore 45 articles tagged #chaicode-mobile-dev-cohort-2026 on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/chaicode-mobile-dev-cohort-2026" --- Tag # #chaicode-mobile-dev-cohort-2026 45 posts · 0 followers [Janmejai Singh](https://hashnode.com/@janmejaisingh) · [Jun 30](https://hashnode.com/posts/expo-router-vs-react-navigation-which-one-should-you-use-in-2026/6a43e5c65de0f2a62e78e0e1) ### [Expo Router vs React Navigation - Which One Should You Use in 2026?](https://cyd3er.hashnode.dev/expo-router-vs-react-navigation-which-one-should-you-use-in-2026?utm_source=hashnode&utm_medium=feed) Expo Router vs React Navigation - Which One Should You Use in 2026? 14 min read · [cyd3er.hashnode.dev](https://cyd3er.hashnode.dev/expo-router-vs-react-navigation-which-one-should-you-use-in-2026?utm_source=hashnode&utm_medium=feed) [sabin shrestha](https://hashnode.com/@sabin) · [Jun 2](https://hashnode.com/posts/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes/6a1e4d48333fde475f2f2d3b) ### [How Instagram Stores Reels, Photos, and Drafts Behind the Scenes.](https://lfsh.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) Why social media apps need efficient media storage When we upload a photo or reel to app like instgram, a huge amount of data is created A normal phone take a photo of 10-20mb A 4k reel can be of 4g 10 min read · [lfsh.hashnode.dev](https://lfsh.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) [Mohit Kumar](https://hashnode.com/@imohit159) · [May 31](https://hashnode.com/posts/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes/6a1c7a65dbdc4ad3ed502cea) ### [How Instagram Stores Reels, Photos, and Drafts Behind the Scenes](https://imohit1o1.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) Behind the scenes of Instagram: local drafts, cloud storage, CDNs, caching, and media processing explained simply. 6 min read · [imohit1o1.hashnode.dev](https://imohit1o1.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) [Sushruto Majumdar](https://hashnode.com/@Sushruto26) · [May 31](https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1c6d83cc299fde142ecdcc) ### [How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://sushruto.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) A. Introduction Imagine you're on a flight with Airplane Mode enabled. You type a message to your friend on WhatsApp and hit Send. Surprisingly, the message instantly appears in your chat window with 6 min read · [sushruto.hashnode.dev](https://sushruto.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) [Sanjeev Kujur](https://hashnode.com/@sanjeevsaniel) · [May 31](https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1be6a6f77c84962ea7b696) ### [How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://sanjeevsaniel.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) Mobile Development · React Native Have you ever sent a WhatsApp message while on the London Underground, only to surface and watch all your messages suddenly whoosh through with their little ticks ap 17 min read · [sanjeevsaniel.hashnode.dev](https://sanjeevsaniel.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) [Mohit Kumar](https://hashnode.com/@imohit159) · [May 31](https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1c7cd9ab609916501dc1b0) ### [How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://imohit1o1.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) Learn how WhatsApp handles offline messages, local storage, message queueing, sync, and delivery states without internet. 6 min read · [imohit1o1.hashnode.dev](https://imohit1o1.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) [Sushruto Majumdar](https://hashnode.com/@Sushruto26) · [May 31](https://hashnode.com/posts/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes/6a1c789e9af8b1a1e5d8b1e7) ### [How Instagram Stores Reels, Photos, and Drafts Behind the Scenes](https://sushruto.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) A. Introduction Every day, millions of users create Reels, upload photos, and save unfinished content as drafts on social media platforms like Instagram. While the user experience appears simple—recor 6 min read · [sushruto.hashnode.dev](https://sushruto.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) [ANK](https://hashnode.com/@ank09yadava) · [May 31](https://hashnode.com/posts/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes/6a1c734eeb126c99825ffec0) ### [How Instagram Stores Reels, Photos, and Drafts Behind the Scenes](https://insta-workking.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) in this article you will deep dive into how we stores our things in draft in instagram even they stays after we restart the phone and all. 8 min read · [insta-workking.hashnode.dev](https://insta-workking.hashnode.dev/how-instagram-stores-reels-photos-and-drafts-behind-the-scenes?utm_source=hashnode&utm_medium=feed) [Pankaj Kumar](https://hashnode.com/@pankajkry) · [May 31](https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1b8f9d2d59948cf6b0001d) ### [How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://mobile-dev-expo.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) Introduction Imagine you're on a flight with Airplane Mode enabled. You open WhatsApp, type a message to your friend, and press Send. Surprisingly, the message immediately appears in your chat window. 7 min read · [mobile-dev-expo.hashnode.dev](https://mobile-dev-expo.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) [Joy Swarnakar](https://hashnode.com/@joyswarnakar) · [May 31](https://hashnode.com/posts/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained/6a1bb862f2f22cdbe9b71a9d) ### [📱 How WhatsApp Works Without Internet: Offline Messaging and Sync Explained](https://joy-swarnakar.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed) Have you ever done this? ✈️ Turned on Airplane Mode, opened WhatsApp, typed a message, and pressed Send. Surprisingly, the message immediately appeared in the chat bubble on your screen. But wait... T 7 min read · [joy-swarnakar.hashnode.dev](https://joy-swarnakar.hashnode.dev/how-whatsapp-works-without-internet-offline-messaging-and-sync-explained?utm_source=hashnode&utm_medium=feed)