Blog
Field notes
on messaging.
Written by the engineers who route the traffic. No fluff, no funnels.
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3 posts · Page 1 of 2
3 posts found, showing page 1 of 2, 2 per page
- 01SMS · March 2026
SMS OTP: still the workhorse of authentication in 2026
Why SMS one-time passwords remain the most reliable authentication channel — and how to send them without shooting yourself in the foot.
6 min read → - 02WhatsApp · March 2026
The honest guide to the WhatsApp Business API
Templates, sessions, green ticks and pricing tiers explained without the marketing fog. Everything a product team needs before rolling out WhatsApp.
8 min read →