Related Products
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About
QuickSMS — Enterprise-grade business messaging (SMS, RCS & WhatsApp)
QuickSMS is a security-first messaging platform that helps organisations send time-critical notifications, 2FA/OTP codes, appointment reminders, and marketing alerts at scale - across SMS, RCS Business Messaging, and WhatsApp Business. Built for reliability and compliance, QuickSMS is used by SMEs, public sector bodies, and enterprises that need auditable delivery, robust APIs, and fast onboarding.
Why QuickSMS
Omnichannel: SMS at the core, with optional RCS and WhatsApp Business to enrich messages with media, buttons, and branding.
Deliverability & speed: High delivery performance (typical ~97%); real-time reporting and webhooks.
Developer-friendly:
Operator-scale routing: with international reach to 200+ destinations.
Trust & Compliance (independently audited)
ISO/IEC 27001, ISO 9001, ISO 14001, ISO 45001 certified
Cyber Essentials & Cyber Essentials Plus certified
Exceeds NHS DSP Toolkit
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About
Zavu is one API for all your messages, built to send and receive SMS, WhatsApp, Email, Voice, Telegram, and more from a single integration. It helps developers ship messaging instead of maintaining messaging infrastructure, replacing separate APIs, SDKs, auth models, webhook formats, sender setup, template approvals, and error handling with one SDK, one webhook format, and one dashboard. Zavu is also built for AI agents from day one: agents can send SMS, WhatsApp, Email, and Voice globally, while developers can use production-ready SDKs across languages such as Node.js, Python, Ruby, Go, PHP, and Java. Its Smart Send and AI Routing features pick SMS, WhatsApp, or Email per contact, choose the best or cheapest delivery path using platform-wide delivery intelligence, and fall back automatically when a channel fails. Context is preserved, delivery is deduplicated, and cost is tracked end-to-end across the fallback chain.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Businesses of all sizes
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Audience
Developers and AI agent teams that need one reliable API to send, receive, route, monitor, and automate messages across every major communication channel
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and VideosNo images available
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Screenshots and Videos |
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Pricing
$0
Free Version
Free Trial
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Pricing
$21 per month
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationQuickSMS
Founded: 2020
United Kingdom
www.quicksms.com
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Company InformationZavu
Founded: 2025
United States
www.zavu.dev/
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Categories |
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Integrations
WhatsApp
Claude
Claude Code
Facebook
Facebook Messenger
Go
Instagram
Java
Node.js
PHP
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Integrations
WhatsApp
Claude
Claude Code
Facebook
Facebook Messenger
Go
Instagram
Java
Node.js
PHP
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