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Total 0 out of 5 stars
ease 0 out of 5 stars
features 0 out of 5 stars
design 0 out of 5 stars
support 0 out of 5 stars

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Ratings and Reviews 53 Ratings

Total 4.5 out of 5 stars
ease 4.5 out of 5 stars
features 4.5 out of 5 stars
design 4.5 out of 5 stars
support 4.5 out of 5 stars

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What is Zavu?

Zavu acts as a consolidated API that addresses all your messaging requirements, enabling you to send and receive SMS, WhatsApp messages, emails, voice calls, Telegram messages, and more through a single integration point. This platform allows developers to simplify the messaging workflow, eliminating the difficulties associated with managing various messaging systems by consolidating numerous APIs, SDKs, authorization processes, webhook patterns, sender settings, template validations, and error tracking into one SDK, a uniform webhook structure, and a centralized dashboard. Built with AI agents in mind, Zavu facilitates their global communication capabilities across SMS, WhatsApp, email, and voice, while providing developers with access to fully functional SDKs in languages such as Node.js, Python, Ruby, Go, PHP, and Java. The system’s Smart Send and AI Routing features effectively determine the best messaging channel—whether SMS, WhatsApp, or email—based on the recipient's preferences, thus optimizing delivery through comprehensive platform-wide intelligence and automatically switching to alternative channels as needed. Throughout this process, the system ensures that context is preserved, duplicates are avoided, and expenses are carefully tracked during every stage of the fallback mechanism, guaranteeing efficiency and transparency for users. Furthermore, Zavu's all-encompassing strategy facilitates smooth integration with existing workflows, significantly improving the overall experience for users and developers alike.

What is BulkSMS.com?

BulkSMS is a business messaging and SMS gateway platform developed by Celerity Systems to help organizations communicate with customers, employees, and other contacts through mobile messaging. The software provides multiple messaging interfaces, including a browser-based application, downloadable Windows and macOS desktop software, and an API for programmatic integration. Users can send individual or bulk SMS messages, organize contact lists, import recipient information, and create personalized communications using message templates. Its campaign management capabilities include scheduled messaging, configurable sender IDs, automated opt-in and opt-out handling, and support for long messages and Unicode characters. Two-way SMS functionality allows recipients to respond to outgoing messages, with incoming replies available through the messaging dashboard or supported integrations. The platform offers dedicated incoming long numbers and SMS shortcodes for businesses that require additional options for receiving messages and managing customer interactions. Its REST API enables developers to integrate SMS functionality into websites, customer relationship management systems, mobile applications, and automated business workflows. Webhooks and messaging integrations support automated appointment reminders, order confirmations, service notifications, one-time passwords, payment alerts, and other event-triggered communications. BulkSMS also provides RCS Business Messaging for branded messages with rich media and interactive buttons, alongside WhatsApp Business Messaging for customer notifications, marketing, and support. Reporting and account management features include delivery status tracking, message histories, downloadable reports, SMS credit purchases, automated credit top-ups, and low-balance notifications.

Media

Media

Integrations Supported

Claude for Legal
Codex CLI
Cursor
OpenAI Codex
Python
Ruby
n8n

Integrations Supported

ActiveCampaign
ClickDimensions
DojoExpert
Orderry
Quickwork
Rayven
RemOnline
RentGuruz
SaveMyLeads
VEVS Bike Rental Software
VEVS Boat Rental Software
Zapier
Zoho Marketing Automation

API Availability

Has API

API Availability

Has API

Pricing Information

$21 per month
Free Version

Pricing Information

Pricing depends on quantity and region
Free Trial Offered?

Supported Platforms

SaaS

Supported Platforms

SaaS
iPhone
iPad
Windows
Mac
On-Prem

Customer Service / Support

Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Zavu

Date Founded

2025

Company Location

United States

Company Website

www.zavu.dev/

Company Facts

Organization Name

BulkSMS.com

Date Founded

2000

Company Location

South Africa

Company Website

bulksms.com

Categories and Features

Communication APIs

Not specified

SMS API

Not specified

Categories and Features

Bulk SMS

Not specified

SMS API

Not specified

SMS Marketing

2-Way Messaging
Contact Management
Mass Texting
Message Personalization
Mobile Coupons
Mobile Keywords
Reporting/Analytics
Scheduled Messaging

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