Support
Stuck, puzzled, or found a bug? Drop me an email — it reaches a real person (me). There's no crash reporting in the app, so a quick message genuinely helps me find things.
Getting started
Use the calendars you already have
Open Settings → Accounts and choose Connect Apple Calendar to bring in everything already on your Mac through Apple's EventKit: iCloud, Google, Exchange/Outlook, Yahoo, shared calendars and subscriptions. You can edit those events in Callllendar too. macOS will ask your permission for Calendar access the first time.
Connect a server directly (CalDAV)
To talk straight to a server, add a CalDAV account with its URL, your username, and a password. If your provider uses two-factor authentication you'll usually need an app-specific password rather than your normal login:
- iCloud: appleid.apple.com → Sign-In and Security → App-Specific Passwords.
- Fastmail: Settings → Privacy & Security → App Passwords.
- mailbox.org and Posteo: create an app password in your account's security settings.
Google doesn't allow app passwords for CalDAV, so this route won't work for a Google account. Set Google up in the Mac's Calendar app and use Connect Apple Calendar instead.
The password is stored in the Keychain on your device, never in plain text and never sent to me. You can also subscribe to a read-only calendar with a webcal:// link, or import an .ics file by dragging it in.
Works with: anything in Apple Calendar on your device, which covers iCloud, Google, Exchange/Outlook, Yahoo and most other accounts. Directly over CalDAV: iCloud, Fastmail, mailbox.org, Posteo and any standard CalDAV server.
Doesn't work with: Google or Microsoft accounts added directly as CalDAV. Google needs an OAuth sign-in that Callllendar doesn't support, so an app password won't work, and there's no direct support for Exchange ActiveSync, EWS or Microsoft Graph. For Google, Exchange, Outlook or Office 365, go through Apple Calendar.
On iPhone and iPad, Callllendar connects through Apple Calendar on the device the same way.
Or keep it local
You don't need any account at all. A local "Personal" calendar is ready the moment you launch, stored only on your device, and it works fully offline.
Inviting people
Add guests in the event editor and Callllendar sends the invitation itself, from the address you choose. For that it needs a way to send mail:
- A calendar account that can also send. iCloud, Fastmail, mailbox.org and Posteo logins work for mail too, so Callllendar asks once whether it may use that login for sending, and keeps its own copy.
- A sending account. Settings → Accounts → Sending takes any mail account that accepts a password: iCloud, Gmail, Fastmail, Proton (through Proton Mail Bridge, on a Mac) or any SMTP server. As with CalDAV, a provider with two-factor authentication wants an app password, not your normal login. For Gmail that means 2-Step Verification on, then myaccount.google.com → App passwords.
Without either, the invitation opens as a draft in your mail app for you to send. Replies from guests show on the event as going, maybe or declined.
Sending works with: iCloud, Gmail and Google Workspace (app password), Fastmail, mailbox.org, Posteo, Yahoo and AOL (app password), Proton via Proton Mail Bridge, and any mail server that takes a password over STARTTLS or SSL.
Accounts that don't work, and why
Callllendar signs in the old-fashioned way: a server address, a user name and a password (or an app password), over an encrypted connection. Anything that insists on something else is out. Here is the list, so you don't find out the hard way:
- Microsoft accounts for sending invitations. Outlook.com, Hotmail, Live, MSN, and Microsoft 365 or Exchange Online work and school accounts. Microsoft has switched off password sign-in for mail apps and only accepts its own OAuth sign-in, which Callllendar doesn't have. Their calendars still show up through Apple Calendar; send invitations from another address.
- Google accounts added directly as CalDAV. Google doesn't allow app passwords for CalDAV, only "Sign in with Google". Add the Google account to Apple Calendar on your device and Callllendar picks it up from there, with editing. Sending through a Gmail address works fine with an app password.
- Exchange, Outlook or Office 365 calendars added directly. No Exchange ActiveSync, EWS or Microsoft Graph in Callllendar. Add the account to Apple Calendar instead and it appears in Callllendar.
- Proton Mail on iPhone and iPad. Proton only exposes mail through its Bridge, which runs on a Mac. Sending from a Proton address works on the Mac with Proton Mail Bridge installed, not on iOS.
Why no "Sign in with Google" or Microsoft sign-in? Both are OAuth sign-ins that require registering the app with the provider and, in Google's case, passing a paid third-party security assessment every year before the app may touch mail. I'd rather not build a recurring fee into the price of a calendar app when an app password does the same job over the same encrypted connection, and keeps me out of your account entirely. If enough people ask for it, I'll add it.
Sign in once: Callllendar, eeeemail and your other devices
A login you add can be kept in your Keychain so eeeemail (my mail app) and Callllendar on your other Macs, iPhones and iPads can offer it. The first launch asks which existing logins to share; each account in Settings → Accounts also has a Share button. On the other side the login appears under Settings → Accounts → Logins found, and nothing is added until you choose Use. With iCloud Keychain on, Apple carries the logins between your devices, end to end encrypted. Every shared login has a Forget button, and removing an account asks whether to remove its shared login too. Details in the Privacy Policy.
Keyboard shortcuts
Callllendar is built to be driven from the keyboard. A few of the keys you'll use most:
- N new event · T jump to today · 1–6 switch views
- / search · ⌘K command palette · ? shows the full list inside the app
- S toggle the detail panel · ⌥⌘S toggle the calendar sidebar
- Select an event and press Delete to remove it. In the editor, Enter saves.
Siri & Shortcuts
Callllendar adds three actions to the Shortcuts app and Spotlight: New Event, Next Event, and Today's Agenda. The two "ask" actions answer out loud — no window needed.
Tip — invoking by voice. Because "Callllendar" sounds like "calendar," Siri may hear a generic calendar request. For reliable voice control, open Shortcuts, wrap a Callllendar action in a new shortcut, and give it a distinctive name (e.g. "My agenda"). Then just say "Hey Siri, My agenda."
Common questions
Does Callllendar send my data anywhere?
No. Events stay on your Mac, or sync directly between your Mac and your own Apple/CalDAV server. There's no Callllendar server in the middle, and the app sends no telemetry. See the Privacy Policy.
Where are my passwords stored?
CalDAV and sending-account passwords live only in your device's Keychain: system-encrypted at rest, never written in plain text, never transmitted to me. A login you choose to share goes into a Keychain group only my apps can read, on your devices.
Is it really sending from my address?
Yes. Callllendar connects to your own mail server and sends the invitation as you would from any mail app, so guests see your address and can reply to it. Sent invitations aren't copied to your mail app's Sent folder.
Why does a meeting link sometimes warn me?
Links in event invitations are checked against public threat lists (phishing/malware) locally, and trackers are stripped, before anything opens. You can always choose to open anyway.
Does it work without internet?
Yes. Local calendars are fully offline; Apple and CalDAV calendars sync whenever you're online.
How do updates work?
Through the Mac App Store, like any other app — it'll let you know when a new version is ready. There's no separate updater inside the app.
Is it really a one-time purchase?
Yes. One price, no subscription, no tiers, no upsells. You buy the app once on the Mac App Store and own it.
Get in touch
Setup help, bug reports, privacy questions — anything. I read every message. No ticket queue, no autoresponder, no form-processing middleman: it's just direct email to me. (Fittingly — Callllendar's whole point is that nobody sits in the middle of your schedule.)
Email me proton.me.bobcat320@passmail.netPlease include your macOS version and, if it's about a specific event, what you were doing when it happened. A screenshot often helps — just attach it to your email.
Privacy
For exactly what the app does and doesn't do with your data, see the Privacy Policy.