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White-Label WhatsApp Builder for Agencies & Marketers.

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Our clients and partners

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360dialog
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From Click to Confirmed Appointment-All on WhatsApp

Qualify leads and book straight through WhatsApp—get more show-ups and fewer no-shows.

How it works

Callendar streamlines your entire Lead-to-Booking funnel, keeping everything Native to WhatsApp.

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01

Attract & Engage
with Ads:

Your Google and Meta click-to-WhatsApp campaigns bring in new leads directly to your business on WhatsApp. No distractions. No multi-stage funnels. Less ad spend, higher booking rates.

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02

AI-Powered
Qualification

Our intelligent AI assistant and in-app forms engage with incoming leads, answering questions and gathering essential information to qualify them in real-time, saving your team valuable time whilst increasing your overall bookings..

03

Seamless In-
App Booking

Leads can directly view your availability and book appointments within WhatsApp. No redirects to other apps or booking sites, encouraging leads to commit to their bookings.
Sync your own calendar, no double bookings.

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04

Automated WhatsApp Reminders

Callendar sends automated WhatsApp reminders to boost show-up rates. All bookings sync seamlessly with Google Calendar and other calendar services, so you can manage everything in one place.

05

Relax, no
more no-shows

Rest assured — Callendar takes care of the follow-up so you don’t have to.

Your time is valuable, and missed appointments can be costly. With Callendar, automated WhatsApp reminders are sent at just the right moments — keeping your clients informed, engaged, and ready to show up. No more chasing confirmations or wondering if someone forgot.

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Build the perfect WhatsApp journey to qualify unknown leads into booked appointments.

Use our WhatsApp journey builder to qualify leads with forms, quick-reply buttons, rich media, and chat agents, turning unknown contacts into scheduled appointments.

Our sophisticated AI, combined with Callendar's native, interactive forms embedded directly within WhatsApp, is designed to qualify leads in real-time, supported by preset multiple choice user flows. It understands user intent, answers questions, gathers essential information, and ensures that only genuinely interested prospects proceed.

WhatsApp Chatbot Builder

Callendar: WhatsApp Native Automation

Our pricing plans

United States
Starter 1k MACs included per month

WhatsApp ChatBot Builder, Booking Appointment + Whatsapp Reminders, Google Calendar Integration, Email Support.

$499

/month
Start Now
Advance 10k MACs included per month

Everything in Starter plus:
WhatsApp Forms Builder, Form results delivered via email, to Google Sheets and via Webhooks, Custom Reminders.

$850

/month
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Ultimate 100k MACs included per month

Everything in Starter and Advance plus:

Tool for Sending Marketing Campaigns

Built to support GDPR compliance

White Label - Use your own brand name and logo

Regional server deployment (Brazil, EU, US, etc).

Expert WhatsApp setup by a Meta Tech Provider
10 hours initially, then 1 hour every month.

WhatsApp Inbox

Custom Chatbot Development
(hourly rate)

Priority WhatsApp Support

$990

/month
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MAC-Based Pricing

MAC (Monthly Active Contact) = one unique WhatsApp user who sends or receives at least one message with your business in a calendar month. Each person counts once per month—no matter how many messages.

MAC Volume (per month) Price per 1k MACs* Example Cost
100,001+ $2 / 1k 150k MACs → 50k billable = $100

* Pricing applies beyond the MACs included in your plan. Counts reset each calendar month.

No multi-stage funnels. No landing pages. Just click to WhatsApp Bookings

Stop losing leads to web forms and landing pages. Callendar's WhatsApp-native booking initiates instant conversations - turning the usual 1-3 lead inquiries per 10 ad clicks into 8-9 confirmed bookings!

WhatsApp also becomes a long-term re-engagement channel, reducing retargeting ad spend while keeping your leads warm and responsive.

Start Now
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WhatsApp’s our favorite way to chat

We’re big fans of WhatsApp — it’s fast, simple, and lets us send way too many emojis. But if you’re more of a form-filler than a chatter, you’re in the right place. Drop us a line below and we’ll get back to you quicker than a double-tick turns blue.

Address

1111B S Governors Ave STE 6529 Dover, DE 19904, US

86-90 Paul Street London EC2A 4NE

Business phone

(+598)-98971142

+44 (0) 203 151 2636

Please enter your name.
Please enter a valid email.
Please enter a valid phone number (7-15 digits, numbers only).
Please describe your WhatsApp automation use case here.

Frequently asked questions

While multi-platform tools like ManyChat offer generic chatbot solutions, our WhatsApp Chatbot Builder is engineered exclusively and natively for WhatsApp. This specialization allows for deeper integration with features like WhatsApp Flows (forms), resulting in a faster, more reliable, and seamless user experience that significantly boosts conversion rates by never forcing users to leave the app.

Our platform allows you to build and deploy rich, interactive WhatsApp Forms (using the official WhatsApp Flows feature) directly within a chat. This is perfect for lead qualification, appointment booking, surveys, and registrations. Because the user never leaves WhatsApp to fill out a form on a slow-loading webpage, we see a dramatic reduction in user drop-off and a higher completion rate compared to traditional methods.

Yes. You can send targeted, personalized WhatsApp marketing campaigns to your opted-in contact list. With open rates often exceeding 90%, WhatsApp is a powerful channel for promotions, new product announcements, and re-engagement campaigns. Our platform helps you manage this process while adhering to Meta's policies to protect your brand's reputation.

Our system automates the entire booking lifecycle within WhatsApp. A user can check availability, book an appointment, and receive confirmations without ever leaving the chat. We then automatically send intelligent WhatsApp reminders closer to the appointment time, which dramatically reduces no-shows and increases revenue.

Yes, for any business with significant volume. While platforms like Wotzell or Infobip may seem cheaper initially, their costs often increase sharply with more contacts or messages. Our pricing is designed for scale. Each plan includes a very generous 100,000 Monthly Active Contacts (MACs), making our platform more cost-effective and predictable as your business grows. We are built for professional use, not just for starters.

We provide more than just a helpdesk. Our licenses include dedicated consultation hours with our team of real Meta tech providers. This means you get expert strategic advice to maximize your ROI, not just basic software support. For example, our Ultimate license includes 10 hours of onboarding in the first month and 1 hour of optimization every month after.

Yes, we do. Our core product is a White-Label WhatsApp Builder designed for marketing agencies, SaaS companies, and consultants. Our Partner Program allows you to use your own brand, logo, and domain to sell our powerful WhatsApp automation solutions to your clients as if it were your own technology.

Our partnership is built for mutual success. Partners subscribe to an initial "Anchor License" to show commitment. For each additional client you onboard, you pay us a flat, reduced monthly fee. You then invoice your clients at your own prices, giving you full control over your profit margins. We also offer partners a 30% discount on our professional service rates, which you can resell.

Absolutely. This is a key benefit for both direct clients and partners. Our expert team is available for hire for Custom Engineering Services to build bespoke integrations, unique automations, and specialized features around the WhatsApp API at a competitive hourly rate.

Our platform gives you the flexibility to connect your own AI provider keys, such as from OpenAI (ChatGPT) or Anthropic (Claude). This allows you to control the AI model, manage your own API costs directly with the provider, and ensure compliance with their terms. You have the freedom to use the AI that best suits your needs or disable it entirely per phone number.

Yes, absolutely. Our platform offers seamless, two-way integration with Google Calendar. Any appointment booked in WhatsApp automatically appears in your calendar, and any event you create in Google Calendar will block off that time in your WhatsApp availability. This ensures you are never double-booked and can manage your entire schedule from one place.

We use an exclusive remote event component powered by AWS Lambdas. This modern, serverless architecture allows our team to rapidly build and deploy lightweight, scalable integrations. It enables us to expand your WhatsApp journey and connect to virtually any third-party system in hours, avoiding the recurring monthly costs and complexity associated with middleware platforms like Zapier or Make.

Yes, 100%. We are official Meta Tech Providers and use the official WhatsApp Business API for all our services. Our platform is built to be fully compliant with Meta's Commerce and Business policies, ensuring your business communicates safely and professionally. We handle the technical complexities so you can focus on your customers.

Yes, you can migrate your existing number to the WhatsApp Business API. However, please note that according to Meta's rules, once a number is on the API, it cannot be used simultaneously in the standard consumer or Business app. Our team can guide you through the seamless onboarding process, whether you're using a new number or migrating an existing one.

Yes. Our platform includes a WhatsApp Team Inbox that allows multiple agents to handle conversations from a single WhatsApp number simultaneously. You can assign chats to specific team members, leave internal notes, and collaborate behind the scenes to provide fast and efficient customer service, all while maintaining a consistent brand presence from one phone number.

Our sophisticated AI agent engages intelligently with incoming leads 24/7. It understands user intent, answers common questions about your services, and uses conversational forms to gather essential information. This ensures that only genuinely interested and qualified prospects proceed to booking, saving your team valuable time and increasing the quality of your appointments.

Absolutely. While we excel in sectors like automotive, real estate, and healthcare, our platform is incredibly versatile. Any business that relies on appointments, consultations, or service bookings can benefit. From salons and legal firms to financial advisors and educational institutions, our tool can be customized to fit your unique lead qualification and booking workflow.

We maximize your ad spend ROI by keeping the entire customer journey 100% native to WhatsApp. When a user clicks your ad, they are never redirected to a slow external website. Instead, our AI qualifies them and they book an appointment directly in the chat. This seamless funnel drastically reduces user drop-off, converting more clicks into confirmed bookings.

Our platform includes a web reporting dashboard that provides key metrics on your WhatsApp activities. You can track the number of conversations, appointments booked, reminder performance, and campaign effectiveness. These insights help you understand customer engagement and optimize your strategy for even better results.

Getting started is quick and easy. Basic setup, like connecting your WhatsApp number and launching your first automated customer journey, can be done in minutes. For more advanced needs, such as custom AI training or complex integrations, our dedicated onboarding support ensures you are fully operational in the shortest time possible, with experts guiding you every step of the way.

The key difference is specialization vs. generalization. ManyChat is a multi-platform tool for Facebook, Instagram, and WhatsApp, making it a "jack of all trades." Callendar is engineered exclusively and natively for WhatsApp. This singular focus allows for deeper integration with official features like WhatsApp Flows, resulting in a faster, more reliable, and higher-converting experience that never forces users to leave the app. We are WhatsApp experts, not generalists.

This is a common point of confusion. Zapier is a middleware or "glue" tool, not a conversational platform. You cannot build a chatbot or manage a customer conversation in Zapier. Its job is to connect one app to another behind the scenes (e.g., "when a new row is added to Google Sheets, send an email"). Callendar is a complete, customer-facing solution that provides the chatbot, the AI, the team inbox, and the automation engine all in one place. While we can integrate with other tools, we are the platform where the entire customer journey happens.

Like Zapier, Make is a powerful backend integration platform for connecting different systems; it is not a customer-facing chat application. Think of it this way: Make is the plumbing that connects different rooms, while Callendar is the actual intelligent room where the conversation with the customer takes place. We provide the end-to-end conversational experience, from the initial chat to the final booking or sale, which is a fundamentally different purpose than a middleware tool like Make.

n8n is a powerful, open-source automation tool for developers, but it shares the same role as Zapier and Make—it's middleware. It connects APIs but does not provide the conversational front-end, the team inbox, or the specialized WhatsApp features that our platform does. Furthermore, Callendar is a fully managed solution backed by Meta Tech Provider experts who provide strategic support and custom engineering. We offer a complete business solution, whereas n8n is a developer tool that would be one small piece of building a similar system from scratch.

Yes, and the process is completely seamless. We are official partners with 360dialog and have a deep, native integration. This means if you are already a 360dialog customer, you can connect your account instantly. There is no complex migration needed; your existing setup will flow directly into our platform, allowing you to enhance your operations with our advanced AI, journeys, and inbox features immediately.
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