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 has established itself. The current version 2.1 is already being used by 52 satisfied freelancers.
Why should you work with him too?
➡️ Because you simply don’t have time not to.
You still have questions? You may find the answers in the FAQ section below.
Frequently asked questions
Why should I use Calendar Butler instead of Calendly or a similar tool?
Calendar Butler solves a completely different problem than Calendly does. Calendar Butler is the right choice for you if you want to quickly and easily make your availability visible in various (customer) calendars.
How long does it take before I can start using Calendar Butler?
It takes about 5-10 minutes, then you can start working with it right away: You will receive your personal access link immediately after completing your subscription. Then, verify your calendar mailboxes with a single click and you’re ready to go.
Does my client’s IT department need to activate my use of Calendar Butler?
No. Calendar Butler uses the same channels that your client’s IT department monitors closely: calendar invitations via email.
But even though Calendar Butler deletes all unnecessary data, always remember to practice data minimization to protect your clients’ internal information.
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.
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?
Invitations are deleted immediately after processing. Only individual anonymized information is retained so that you can update your appointments later.
On which platforms and with which tools does Calendar Butler work?
It doesn’t matter whether you work on a Windows computer or a Mac, with Outlook, Google Calendar, Apple Calendar… Calendar Butler works reliably with all platforms.
Is working with Calendar Butler easy or secure?
Why choose between the two? We want both! Magic Link instead of passwords, 2FA, anonymization/data deletion, regular security updates and test automation, custom subject lines, calendar verification… not only make it easy for you, but also particularly secure.
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.