booking
Book more appointments - straight from chat

Turn interest into scheduled appointments without forms or friction. With charles, customers book, reschedule, and get reminders via WhatsApp, Instagram, Messenger, or Webchat - handled end‑to‑end by AI.

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More appointments
Instant responses with lowest friction causing more bookings
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less manual workload
Reduce human workload and personnel cost through automation
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happier users and customers
An outstanding brand experience yields happy customers
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more feedback along the way
Leverage interactivity to collect feedback for cancellations
Simple setup
Through our Appointment AI, we connect relevant systems (like Outlook, Calendly etc) to allow access for calendar bookings
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Frictionless booking experience
Through messenger, users can simply book and reschedule. As straightforward as it gets. Completely automated
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Reminder to reduce no-shows
Messenger reminders get read. Therefore the no-show risk due to forgetting gets minimized
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Automated followups
As they are anyways in your messenger experience, interact with your users for feedback or subsequent actions that are required
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VOICE OF CUSTOMERS

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Anina Kistner, CEO

"This is the most exciting development I’ve seen in 15 years of CRM"

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Yearly revenue
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Open rate
Database 10x
Average ROAS
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Johannes Kliesch, Founder

"Every D2C company must be on WhatsApp — there’s no discussion."

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Revenue in 1.5 years
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Boosted open & conversion rate
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From start to go live
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Michael Walter, Senior Direct Marketing Manager

"WhatsApp's interactivity is ideal to gather customer data for improved personalization."

Book Open 90%
Opt-In flow completion rate
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Avg. Click-Through-Rate
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Subscribers in first weeks
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ALL YOUR QUESTIONS, DECODED
How do click-to-message ads increase conversions compared to regular ads?

These ads create a direct line of communication between your brand and potential customers on WhatsApp, Instagram, or Facebook Messenger. By skipping traditional landing pages, you can immediately engage users in real-time conversations, capturing their intent and guiding them toward a purchase. Once in the chat, you can leverage advanced AI features such as lead qualification or automated product recommendations to further streamline and personalize the customer experience.

How can I build a subscriber base while staying GDPR-compliant?

Using double opt-ins ensures that users provide explicit consent before subscribing to your updates. Our platform tracks opt-in statuses across all messaging channels, helping you build a compliant subscriber base. Once you have these subscribers, you can engage them with campaigns, transactional updates, or even personalized back-in-stock alerts.

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How do personalized product recommendations work?

By analyzing purchase history, browsing behavior, and preferences, our AI delivers tailored suggestions directly in chat. These recommendations can be displayed as visually engaging carousels, making it easy for customers to explore and purchase. You can also combine this with abandoned cart recovery to re-engage undecided shoppers.

What’s the best way to recover abandoned carts?
Personalized follow-ups remind users about their abandoned items and address potential concerns like price or availability. Adding a limited-time discount or recommending complementary products can further drive conversions. Abandoned cart recovery is just one part of the broader automation ecosystem. Features like back-in-stock alerts or win-back campaigns can also help boost sales.
How do I know if my FAQ automation is working well?
By tracking key performance indicators (KPIs) such as solution rate, escalation rate, and customer satisfaction scores. We treat our AI agents like performance marketers, continuously monitoring and optimizing their performance to ensure they deliver results.
Can I customize the tone of my FAQ responses?
Absolutely. You can set the tone to match your brand’s voice — whether formal, casual, or humorous. This ensures that every interaction feels authentic and aligned with your brand’s personality.
What if a customer’s question isn’t covered by the FAQ automation?
When a question isn’t covered, our system seamlessly escalates it to a human agent. Additionally, safeguard rails are in place for sensitive topics — such as health-related claims or regulatory concerns — ensuring these are routed to humans for careful handling. With advanced intent detection and retrieval-augmented generation (RAG), we accurately understand user requests and provide the most relevant responses.
How can I reduce repetitive customer queries?
Automating FAQs allows you to provide instant responses in your brand’s tone of voice, while complex queries can be escalated to human agents for resolution