Stop juggling multiple calendars manually.
Privacy-first calendar sync for consultants and professionals in compliance-critical projects.
Beat your calendar chaos
If you work with more than one calendar, you are familiar with this problem:
»How can all my appointments be transferred to the other calendars in a data-secure manner?«
Our corporate customers often have strict requirements regarding data security and the use of technical interfaces. And even if everything were possible, we don’t want all the details to be visible in all our calendars.
This means that professionals would have to manually transfer every appointment to all other calendars—which is simply impossible. The result is double bookings, postponements, missed appointments… calendar chaos.
Just keep it simple
Calendar Butler supports you:
It invites all your other calendars to an anonymous appointment. No invitation text or access data, no names and contact details of other participants, and with a subject line that you assign yourself.
Your calendar is blocked, you have an overview anytime, anywhere, and your customers finally see a well-maintained calendar — without any hassle.
How it works
1.
Set up your meeting
2.
Invite the Calendar Butler
3.
He will take care of the rest
What others say
That’s exactly what I needed. Shut up and take my money 😉
Walther Geuder,
Project Manager, Emposo GmbH
It’s so easy. I don’t have to spend ages setting that much up. You can basically start working right away.
Marianna Gulli,
Project Manager, Emposo GmbH
Awesome! It solves such an annoying problem that I keep running into. And no AI. I don’t even have to turn anything off.
Oliver Briede,
Requirements Engineer, Emposo GmbH
Calendar synchronization is such an annoying problem. If you hadn’t invented your tool, I wouldn’t know how to solve it.
Sina Kistner,
Specialist, Kunden glücklich machen
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Hire your butler now
Calendar Butler is live – version 1.0 for early adopters. The first users are thrilled.
It will be continuously developed over the coming weeks:
🏎️ Integration of consumer calendars for private use
🏎️ Improved processing of recurring events
Secure the Black Friday price now – your subscription price will remain the same forever, while you automatically benefit from all updates. Be there from the start, pay less than those who join later, and help shape the development with your feedback.
Use the code
CBEPBF25
Only available until November 28, 2025, at midnight.
Frequently asked questions
Will my sensitive data be stored?
In order for Calendar Butler to support you, we only need a few details from you: your email addresses that are linked to your various calendars. In addition, an anonymous ID is stored for each meeting so that it can be changed later. That’s all.
What happens to the invitations that Calendar Butler has received?
All invitations are deleted immediately after processing.
Do I have to share my customer’s data?
We only need the email and calendar address you received from your customer. It is likely structured similarly to FIRSTNAME.LASTNAME@CUSTOMER.COM. That is all we require.
Why does Calendar Butler work particularly well for compliance-critical environments?
Companies‘ email systems are strictly monitored, and incoming and outgoing messages are subject to strict regulations. Calendar Butler uses this secure transmission method instead of attempting to intervene in the companies‘ own systems.