Build better push, WhatsApp & deep linking
Step-by-step guides for engineers — with real code, setup checklists, and the gotchas that usually cost a day.
Best SDK for Real-Time Push Notification Delivery: What Actually Matters
How to choose an SDK for real-time push notification delivery on Android and iOS: how FCM and APNs deliver messages, why notifications arrive late, the settings that control speed, and a checklist for comparing push SDKs.
Read guideWhat Is a WhatsApp BSP? How to Choose a WhatsApp Business API Provider in India
What a WhatsApp Business Solution Provider (BSP) does, how Meta's Solution Partners, Tech Providers, and Tech Partners differ, what BSPs charge on top of Meta's rates in India, and a checklist for choosing one.
Firebase iOS Push Notifications: APNs Key and SDK Setup
Set up Firebase Cloud Messaging on iOS step by step: create an APNs authentication key, upload it to Firebase, add the Firebase iOS SDK, request permission, and get the FCM token — plus the most common reasons iOS push fails.
Flutter Push Notifications: A Step-by-Step Guide
Add push notifications to a Flutter app for Android and iOS with Firebase Cloud Messaging: pubspec setup, Android and iOS configuration, the Notification Service Extension, background handling, and delivery tracking.
WhatsApp Business API: A Complete Developer Guide
How the WhatsApp Business API works for developers: accounts, message templates, the 24-hour window, webhooks, delivery receipts, opt-in rules, per-message pricing, and a Node.js example.
WhatsApp OTP API: How to Send One-Time Passwords on WhatsApp
Send OTPs and login codes over WhatsApp with authentication templates: the fixed template text, copy-code and one-tap autofill buttons, code expiry, security best practices, and cost.
React Native Push Notifications: A Step-by-Step Guide
Add push notifications to a React Native app for Android and iOS with Firebase Cloud Messaging: Firebase setup, native configuration, background handling, user tags, and delivery tracking.
Deferred Deep Linking Explained: How It Works on Android and iOS
What deep linking and deferred deep linking are, how Universal Links and Android App Links fit in, how a link survives the app store install, and how it powers mobile app install attribution.