The Courier Blog

Stripo vs Unlayer vs Courier Create: Embedded Email Editor Comparison for SaaS Platforms

SaaS platforms often embed Stripo or Unlayer to let customers design emails, but those tools stop at content. If you need customer-owned notifications across email, SMS, push, and in-app with delivery built in, Courier Create is designed for the full job.

How to Use WhatsApp Typing Indicators on Twilio (Public Beta Guide)

Twilio now supports typing indicators for WhatsApp. When your backend takes a few seconds to generate a response, you can show users that something's happening instead of leaving them staring at a silent chat. The indicator appears when you call the new /v2/Indicators/Typing endpoint, automatically marks the message as read, and disappears after your response arrives or 25 seconds pass. This guide covers the API details, implementation patterns for Node.js and Python, when to use typing indicators, and current beta limitations.

Nodemailer Alternative: Outgrowing DIY Email Infrastructure

Nodemailer works great for transactional email in early-stage products. But B2B customer journeys demand more: Slack notifications for engineering teams, Microsoft Teams messages for enterprise customers, in-app notification centers, SMS escalations, and push alerts. Building this yourself means maintaining integrations with SendGrid, Twilio, Firebase, Slack's API, and Microsoft Graph. Courier provides omnichannel notification infrastructure through one API, handling routing, preferences, delivery, and analytics across every channel.

Developer Guide to iOS 26 Priority Notifications

iOS 18.4 and now iOS 26 Apple Intelligence changed how we interact with important alerts on the Lock Screen. This technical guide shows developers how to implement Time Sensitive notifications, Communication Notifications with SiriKit, and relevance scoring to improve engagement rates. Learn which notification content gets prioritized, how to use provider overrides with Courier's unified API, and best practices for iOS notification deployment. Includes implementation examples, Apple Developer documentation links, and FAQ for migrating from Twilio Notify before December 2025.

Pushbullet Alternative: How to Build Cross-Device Product Messages

Pushbullet proved users demand cross-device notification intelligence. Now product teams need infrastructure to build these capabilities directly into their applications. Courier provides omnichannel messaging infrastructure with cross-channel sync, intelligent routing, multi-provider failover, and consolidated digests. Deliver notifications through 50+ providers across email, SMS, push, Slack, and in-app channels. Meet user expectations with production-ready SDKs, automated workflows, and enterprise-grade reliability.

Twilio Notify End of Life: How to Migrate Safely

Twilio has announced that Twilio Notify will reach end of life on January 31, 2027, and the product has been closed to new customers since 2022. This guide explains what that means for developers and shows how to migrate to Courier, the fastest way to replace Notify while keeping Twilio, SendGrid, Segment, and WhatsApp connected.

Courier + Stream: The Future of Customer Engagement is Here

Modern apps need more than features—they need conversations and intelligent communication. Courier's omnichannel notification platform combined with Stream's real-time messaging infrastructure transforms how developers build engaging experiences. Send notifications across email, SMS, push, and in-app channels while powering real-time chat, video calls, and activity feeds. With Courier's new MCP server, implement Stream directly from your IDE using AI agents. From indie developers to enterprises, build production-ready communication features in days.

The Embedded Editor Showdown: Choosing the Right Embedded Editor for Your B2B Platform

B2B platforms do more than send messages—they help their customers communicate with theirs. Learn how an embedded notification designer like Courier Create gives every business the power to design and deliver its own branded messages at scale.

Transactional, Product, and Marketing Notifications: What Are the Differences?

Understanding the difference between transactional, product, and marketing notifications is essential for developers building notification infrastructure. Transactional notifications confirm user actions and require no opt-in. Product notifications drive feature adoption through education. Marketing notifications promote sales and require explicit consent. This guide explains the legal requirements, best practices, and when to use each notification type to build compliant systems users trust.Retry