Glossary · Web & App Development
Overview
What WhatsApp is
WhatsApp is a free, cross-platform messaging app owned by Meta that supports text, voice, video calls, and file sharing with end-to-end encryption. Beyond the consumer app, businesses use two products: the WhatsApp Business App, a free tool for small teams, and the WhatsApp Business Platform, an API for automated, high-volume messaging integrated into other software.
How the Business Platform works
The WhatsApp Business Platform (API) requires customer opt-in and uses pre-approved message templates for anything sent outside a 24-hour customer-initiated conversation window. Meta prices it by conversation category, so costs scale with volume. Because it is an API rather than an app, it connects to CRMs, chatbots, and automation tools, enabling scheduled and triggered messages at scale.
Why it matters for your business
For many audiences, WhatsApp has higher open and response rates than email, making it valuable for instant lead response, appointment reminders, and no-show recovery. A full-service team can wire WhatsApp into AI chatbots and customer service AI, connect it to booking and CRM systems, and design flows through platforms like GoHighLevel so conversations are captured, answered, and followed up automatically.
Where we use it
Related Zen in Tech services
How our team puts WhatsApp to work in real projects.
FAQ
WhatsApp — common questions
Is WhatsApp free for businesses?
The WhatsApp Business App is free for small businesses. The WhatsApp Business Platform (API) has no license fee but charges per conversation based on category and country, so costs depend on message volume.
WhatsApp Business App vs WhatsApp Business Platform?
The Business App is a standalone mobile app for small teams handling chats manually. The Business Platform is an API for automation, chatbots, and high-volume messaging integrated into CRMs and other software.
Do I need permission to message customers on WhatsApp?
Yes. Customers must opt in, and business-initiated messages sent outside a 24-hour conversation window must use message templates that Meta approves in advance.
Need WhatsApp done right?
Book a free consultation and we’ll map the fastest, most cost-effective path for your project.
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