Blog
What's new in Zend
Why we built email from your own domain and voice calls into Zend, what they change for your business, and why having every channel in one place saves you time, money, and complexity.
SMS vs. WhatsApp
In today's mobile-first world, reaching customers means texting them. But in the communication toolbox of any modern business or developer, **SMS (Short Message Service)** and **WhatsApp** serve two fundamentally different, yet equally critical, roles.
One-time codes, done for you: how Zend OTP works
How Zend OTP generates, sends, and verifies one-time passcodes over SMS or WhatsApp — 4 or 6 digits, a custom expiry, built-in attempt limits, and a WhatsApp-to-SMS fallback, all behind two API calls. You never store or check a code yourself.
Read in 5 min read
By Zend Team on Jul 23, 2026
One typed client: how the Zend Node SDK works
A tour of @usezend/node: installing and authenticating, the never-throw result envelope, full TypeScript types, camelCase in and out, and one client for every channel.
Read in 6 min read
By Zend Team on Jul 22, 2026
Landing in the inbox: how Zend Email works
A look under the hood at Zend Email: domain authentication, the send lifecycle, attachments, open and click tracking, and the deliverability safeguards that keep your sender reputation clean.
Read in 7 min read
By Zend Team on Jul 22, 2026
Calls that get answered: how Zend Voice works
How Zend places automated voice calls: text-to-speech or your own audio, digit-by-digit codes, reaching up to 500 people at once, an SMS fallback when a call goes unanswered, and per-call tracking.
Read in 6 min read
By Zend Team on Jul 22, 2026
SMS Marketing 101
A beginner-friendly guide to building compliant opt-in lists and launching time-critical campaigns that drive measurable results—built on the foundation of rock-solid messaging infrastructure.
Read in 9 min read
By Zend Team on Oct 5, 2025
Powering the Ghanaian Connection
Why SMS Remains Critical and How Zend is Leading the Charge
Read in 6 min read
By Zend Team on Oct 1, 2025