Fantastical 4.1: Liquid Glass, Smarter Parsing and What Came Next

Flexibits released Fantastical 4.1 on 15 September 2025, timed to arrive alongside macOS Tahoe and iOS 26. The update gave the calendar and task app a Liquid Glass redesign and taught its natural language parser to use Apple Intelligence, so it can pull events and tasks out of longer, messier sentences. Flexibits has kept adding to the 4.1 series through 2026, with calendar mirroring, a built-in MCP server and, most recently, Fantastical 4.2. If you juggle lectures, seminars, deadlines, part-time shifts and society meetings across more than one calendar, this is the release cycle that makes Fantastical worth another look.

What's new in Fantastical 4.1

A Liquid Glass redesign

On macOS 26, Fantastical adopted Apple's new Liquid Glass design language, with translucent toolbars and menus and an app icon that supports the new icon appearance modes in Tahoe. According to the Flexibits announcement, the refresh covered the Mac, iPhone, iPad, Apple Watch and Apple Vision Pro versions, so the app looks consistent whichever device you pick up.

Apple Intelligence in the parser

Fantastical's best-known feature is its parser: you type something like a meeting and a time in plain English and it builds the event for you. In 4.1 the parser can hand off to Apple Intelligence to understand more complex sentences, picking out the date, time, location and title from a single rambling line rather than a tidy formula. This part needs a Mac that supports Apple Intelligence and runs macOS 26.

Quicker calendar toggling and new widgets

• Show or hide calendars instantly: right-clicking the calendar sets menu on the Mac now lets you switch individual calendars on and off without opening settings. Flexibits notes this works on older macOS versions too.
• Apple Watch Control Centre widget: a new control jumps straight to your current or next event or task in the watch app.
• Vision Pro widgets: Fantastical widgets can now be placed in your space on Apple Vision Pro.

Since then

The 4.1 series has received regular updates through 2026, several of which add more than bug fixes. The Mac release notes list the details, but the highlights are:

• Control Centre controls (4.1.5, December 2025): create an event, create a task or show today's schedule from Control Centre.
• Teams on any calendar (4.1.10, March 2026): Microsoft 365 users can attach a Teams meeting to events on non-Microsoft calendars.
• Emoji tags (4.1.12, April 2026): any event can be tagged with an emoji, and month view separates months more clearly.
• Calendar Mirroring and Meet With (4.1.16, June 2026): Fantastical can copy events from one calendar to another according to rules you set, so a busy slot on one account blocks the same time on another. Meet With lets you check colleagues' schedules within your organisation.
• MCP server (4.1.17, July 2026): Fantastical's Model Context Protocol server is now built in and works with any AI app that supports MCP.
• Events from images (4.1.19, September 2026): an option to extract events from pictures.
• Fantastical 4.2 (14 September 2026): adds support for Siri AI working with your Fantastical calendars, invitee options for Microsoft Graph events, and stops cancelled events from being mirrored or counted in availability.

Why it matters for students

Student schedules tend to be spread across several places at once: a university Outlook or Google account for timetables and supervisions, a personal iCloud calendar, and perhaps a work rota from a part-time job. Fantastical is good at pulling all of that into a single view, and the recent updates make it easier to live with day to day.

• Capture things as you hear them. When a lecturer mentions a revised submission date or a lab gets moved, typing a quick sentence into the parser is faster than filling in fields. The Apple Intelligence upgrade means you don't have to phrase it carefully.
• Stop double-booking yourself. Calendar Mirroring is useful if your university and personal calendars don't talk to each other. Mirror your shifts into your university account and anyone booking a group project meeting sees you as busy.
• Keep coursework and events together. Fantastical handles tasks as well as events, including Todoist and Google Tasks, so reading lists and essay milestones can sit next to your timetable.
• Focus on what's relevant. The quick calendar toggle makes it easy to hide society or sport calendars during exam weeks and bring them back afterwards.
• Organise with AI tools. If you already use an AI assistant that supports MCP, the built-in server lets it read and create calendar entries on your behalf, which can help with planning revision blocks.

Requirements and upgrade details

• The Mac App Store listing states that Fantastical requires macOS 12.4 or later.
• The Liquid Glass design and the Apple Intelligence parser need macOS 26, and the parser also needs Apple Intelligence to be available on your Mac.
• Fantastical 4.1 and the later 4.1.x and 4.2 releases arrived as regular updates to Fantastical 4. The app is free to download and covers basic calendar use, while features such as Openings, Proposals, calendar sets and conference call integration require a Flexibits Premium subscription, which comes with a 14-day free trial.

Get Fantastical with a student discount

Student App Centre members get 20% Off Fantastical, which makes the Premium features far more affordable on a student budget. You can find the offer on our Fantastical student discount page. If you're not a member yet, you can start with a 7-day free trial of Student App Centre membership and claim the discount straight away.