10 best calendar apps in 2026

The right calendar app depends mostly on where the rest of your day already happens: Google, Microsoft, Apple, or Notion. The strongest option in each of those camps is free. Paid apps charge for extras such as natural-language input, one view across several accounts, or AI scheduling.

We compared 10 calendar apps on price, platforms, and what each one does better than the others. If you also plan in Notion, you can keep your calendar events and Notion databases in two-way sync with 2sync.

The best calendar apps at a glance

How we chose these calendar apps

We evaluated over 20 calendar apps and narrowed the list to 10 based on four criteria: cross-platform availability, free tier quality, integration ecosystem, and whether the app offers something no other calendar does.

We excluded scheduling tools like Calendly that handle appointment booking but don't replace a daily calendar. We also dropped apps with limited platform support or fading market relevance.

Prices are US prices, checked in October 2026 on each vendor's pricing page. Where an app connects to Google Calendar or Outlook, we note how to get its events into Notion with 2sync.

1. Google Calendar: best free calendar app

Google Calendar is the default choice for a reason. With more than 10 billion downloads on Google Play alone, it handles everything most people need: multiple calendars, color coding, recurring events, and shared scheduling. The interface stays clean even with several calendars layered together.

Why choose Google Calendar?

Google Calendar works on every platform and integrates with nearly every productivity tool. It connects natively to Google Meet and supports Zoom via add-on. Shared calendars make team coordination simple, and Google Tasks integration lets you manage to-dos alongside events.

For Notion users, Google Calendar pairs directly with 2sync to sync events to a Notion database in both directions. Changes you make in either app appear in the other automatically.

✅ Pros:

• Clean interface that scales well with multiple calendars
• Deep integration with Google Workspace and third-party apps
• Easy calendar sharing and permission controls
• Regular feature updates and strong mobile apps

❌ Cons:

• Heavily tied to the Google ecosystem
• Limited offline functionality on mobile

2. Notion Calendar: best for Notion users

Notion Calendar is built for people who use Notion, the workspace app where teams and individuals organize projects, notes, and databases.

It pulls events from Google Calendar, Outlook (on desktop and web for now), and iCloud, then lets you link them to Notion pages and databases directly from the calendar view. Time-blocking tasks from a Notion database into your calendar takes a single drag.

Why choose Notion Calendar?

If you already manage projects in Notion, Notion Calendar closes the gap between your schedule and your workspace. You can open any linked Notion page from a calendar event, see database items as time blocks, and share scheduling links that check your availability automatically.

Our step-by-step Notion Calendar guide shows how to set up each of these.

Notion Calendar is where you create and edit the events themselves; 2sync handles the data sync, writing each event into a Notion database as an editable page with field mapping, filters, and two-way updates. They solve different problems and work well together.

Trying to decide whether to plan in Notion Calendar or stick with Google's app? Our Notion Calendar vs Google Calendar comparison breaks down where each one wins. If Notion Calendar is too limited for your workflow, see our roundup of Notion Calendar alternatives covering Morgen, Motion, Sunsama, Fantastical, and more.

✅ Pros:

• Free with no paid tier
• Deep Notion database integration with time-blocking
• Scheduling links built in
• Clean, minimal interface

❌ Cons:

• Requires a Notion account
• Outlook calendars work on desktop and web only, not yet on mobile
• Limited standalone value without Notion

3. Outlook Calendar: best for Microsoft users

Outlook Calendar is the strongest option for anyone embedded in the Microsoft ecosystem. It combines email, calendar, and contacts in one app, making it practical for professionals who manage meetings alongside their inbox. Shared group schedules and room booking work out of the box with Microsoft 365.

Why choose Outlook Calendar?

Outlook handles scheduling that simpler calendars struggle with: recurring meetings with exceptions, room and resource booking, and delegate access. Integration with Teams, SharePoint, and OneDrive keeps your meeting notes and files next to the calendar.

Choosing between the Microsoft and Google stacks? Our Outlook Calendar vs Google Calendar comparison goes through both head to head.

If you track meetings in a Notion database, how to sync Notion with Outlook Calendar walks through every method end to end, with two-way sync mapping events, attendees, and meeting details to database properties automatically.

✅ Pros:

• Email, calendar, and contacts in one app
• Powerful meeting scheduling with room booking
• Strong team and delegate features
• Works across all platforms

❌ Cons:

• Interface can feel cluttered with many features
• Free version requires an internet connection
• Microsoft 365 subscription needed for full features

4. Apple Calendar: best for Apple ecosystem

Apple Calendar is the best choice if you own several Apple devices. It syncs across iPhone, iPad, Mac, and Apple Watch through iCloud, and its clean interface keeps the focus on your schedule rather than on menus.

Natural language input lets you type "Lunch with Sarah Friday at noon" and the calendar turns it into an event.

Why choose Apple Calendar?

Apple Calendar's strength is invisible integration. Siri can create events from any Apple device, location-based alerts trigger when you need to leave, and the calendar pulls travel time from Apple Maps. It also supports CalDAV, so you can subscribe to Google Calendar, Outlook, and other calendar services without switching apps.

✅ Pros:

• Seamless iCloud sync across all Apple devices
• Natural language event creation
• Siri integration and location-based alerts
• Supports third-party calendar subscriptions (Google, Outlook)

❌ Cons:

• Limited to Apple ecosystem (no Android or Windows app)
• Fewer features than third-party alternatives
• Tasks rely on the separate Reminders app (shown in Calendar since iOS 18)

Related: Best calendar apps for Mac | Google Calendar vs. Apple Calendar | How to sync Google Calendar with Apple Calendar

5. Todoist: best for task and calendar management

Todoist bridges the gap between task management and calendar scheduling. On Pro, its calendar layout turns your task list into a visual timeline, letting you drag tasks to reschedule and set durations for time-blocking. Natural language input ("Submit report every Friday at 3pm") makes creating recurring tasks fast.

Why choose Todoist?

Todoist works best when your day is mostly tasks with a few fixed appointments. Labels, priorities, and filters narrow the list to what matters today. It runs on every platform, including Linux, and integrates with Google Calendar and Outlook.

For Notion users, 2sync connects Todoist directly to Notion databases with two-way task sync. Tasks created in Notion appear in Todoist and vice versa, with status, priority, and due dates mapped automatically.

✅ Pros:

• Calendar layout with drag-and-drop scheduling
• Natural language task creation with recurring support
• Available on every platform including Linux
• Strong integrations with Google Calendar and Outlook

❌ Cons:

• Google Calendar and Outlook events show read-only in Today and Upcoming; you can't edit them in Todoist
• Calendar layout, task durations, and custom reminders require Pro
• Less powerful as a standalone calendar

Related: Todoist vs. Google Tasks

6. Fantastical: best premium calendar for Apple

Fantastical is the most polished calendar app on Apple platforms. It aggregates events from Google Calendar, iCloud, Outlook, and Exchange into a single interface with powerful natural language parsing, calendar sets, and 10-day weather forecasts built into the calendar view.

Why choose Fantastical?

Fantastical excels at managing complex multi-calendar setups. Calendar Sets let you switch between different views (work, personal, family) with one tap. Conference call detection automatically adds join buttons for Zoom, Teams, and Meet. The scheduling feature lets others book time directly on your calendar.

Fantastical has had a Windows app since October 2024, included in the same Premium subscription, and Flexibits now offers it on Googlebook too. The experience remains strongest on Mac and iPhone.

✅ Pros:

• Best-in-class natural language input
• Calendar Sets for switching between views
• Conference call detection and one-tap join
• Beautiful interface with weather integration

❌ Cons:

• Most features require a paid subscription
• On Windows, tasks come only from Google Tasks, Microsoft 365, and Todoist (no Apple Reminders)
• No app for Android phones or tablets yet (Flexibits has announced it for 2027)

7. Morgen: best cross-platform calendar

Morgen unifies Google Calendar, Outlook, iCloud, and other calendar accounts into a single view that works on every desktop and mobile platform. It adds task integration from Todoist, Notion, Linear, and other tools, letting you drag tasks onto your calendar for time-blocking.

Why choose Morgen?

Morgen solves a specific problem: managing multiple calendar accounts across platforms without switching between apps. If you use Google Calendar for personal events and Outlook for work, Morgen combines them with scheduling links, focus time blocks, and a task sidebar.

Morgen also pulls tasks from Notion, Todoist, and Linear into that sidebar for time-blocking, though it only writes back task status and due dates. If you need full calendar-to-Notion database sync with field mapping, that takes a dedicated sync tool like 2sync.

To mirror one calendar into another instead, see the best calendar sync tools.

The trade-off is price. Morgen removed its free plan in 2025, and at $15/month (annual billing, or $30/month monthly), it's one of the more expensive options on this list. The 14-day trial helps you test whether the multi-account workflow justifies the cost.

✅ Pros:

• True cross-platform support including Linux
• Unified view for Google, Outlook, and iCloud calendars
• Task integration with Todoist, Notion, and Linear
• Scheduling links and focus time blocks

❌ Cons:

• No free plan (14-day trial only)
• $15/month is steep for a calendar app
• Smaller user base than mainstream alternatives

8. TimeTree: best shared calendar for families and groups

TimeTree is a shared calendar built around groups. You create one calendar per group (your family, your partner, a shift team, a club), invite the members, and everyone adds and edits events in it.

Each event has its own chat thread, so "what time?" and "where?" get settled under the event, with photos if needed, instead of in a separate group text.

Why choose TimeTree?

TimeTree is for the calendar a whole group edits together. Memos work as shared shopping or to-do lists for each calendar, and an undated memo turns into an event once you give it a date. All of that, plus shared albums and widgets, comes with the free plan.

It can also show events from your phone's built-in calendar, including a Google Calendar synced to it. On your personal Home calendar those events update automatically, but only you see them. Importing them into a shared calendar copies them once, and nothing flows back from TimeTree to Google Calendar.

Premium removes the ads, lets you attach PDFs and other files to events, and starts with a free month. It's billed per account, so there is no family plan that covers every member.

✅ Pros:

• Built for group calendars: one per family, couple, team, or club
• Chat and photos inside every event
• Shared memos and to-do lists
• The free plan covers the core shared calendar

❌ Cons:

• The free version shows ads
• Google Calendar events only show on your personal view or arrive as a one-time copy; nothing syncs back
• No desktop app; on a computer you use the web version, which can't show external calendars
• Premium is per account, with no shared family plan

9. Proton Calendar: best for privacy

Proton Calendar is the only calendar app on this list with end-to-end encryption. Built by the team behind Proton Mail, it ensures that event titles, descriptions, locations, and attendees are encrypted so that even Proton cannot read your calendar data.

Why choose Proton Calendar?

If calendar privacy matters to you, Proton Calendar is the only serious option. All event data is encrypted at rest and in transit.

The free plan includes three calendars and event invitations. Mail Plus raises that to 25 calendars and adds calendar sharing, and Proton Unlimited bundles the rest of Proton's apps (Drive, VPN, Pass).

The trade-off is a smaller integration ecosystem. Proton Calendar has no two-way sync with Google Calendar or Outlook, so it works best as your main calendar rather than next to them.

You can still subscribe to a Google or Outlook calendar: it stays view-only, refreshes every 4 to 16 hours depending on the provider, and counts toward your plan's calendar limit. To move your existing events over, Easy Switch imports your Google calendars.

✅ Pros:

• End-to-end encryption for all calendar data
• Free tier with core functionality
• Part of Proton's privacy suite (Mail, Drive, VPN)
• Open source and independently audited

❌ Cons:

• No two-way sync with Google Calendar or Outlook (view-only subscriptions only)
• Fewer features than mainstream alternatives
• Calendar sharing requires a paid plan
• The desktop app (Windows, Mac, Linux) needs a paid plan; free users get a 14-day trial

10. Reclaim: best AI calendar optimizer

Reclaim doesn't replace your calendar. It optimizes it. Working as an AI layer on top of Google Calendar or Outlook, Reclaim automatically blocks focus time, keeps recurring routines like weekly planning in place, and finds the best slots for 1-on-1s, rescheduling them around your priorities as the week fills up.

Why choose Reclaim?

Reclaim is for people whose calendars are already full. You set a weekly Focus Time goal and Reclaim schedules the hours, while Habit agents hold your recurring work routines in place.

It connects to Google Tasks, Todoist, ClickUp, Jira, Asana, and Linear. During focus time, it suggests what to work on next based on your priorities, deadlines, and what's already on your calendar.

When Clockwise shut down in March 2026, it pointed its own users to Reclaim, which is now the natural home for anyone who relied on automatic schedule optimization. (Reclaim has been part of Dropbox since 2024.)

Since Reclaim sits on top of Google Calendar and Outlook, it pairs well with tools that sync calendar data elsewhere. If you use Notion, 2sync can push your Reclaim-optimized schedule into a Notion database automatically.

✅ Pros:

• AI-powered schedule optimization with focus time and habits
• Task suggestions from Todoist, Asana, Jira, and other task apps during focus time
• Works with both Google Calendar and Outlook
• Genuinely useful free tier (Lite)

❌ Cons:

• Not a standalone calendar (requires Google Calendar or Outlook)
• Paid plans are billed per seat and aimed at teams
• A longer scheduling range and analytics need Starter or Business

How to build a single source of truth from multiple calendars

Most people don't use just one calendar. You might run Google Calendar for personal plans, Outlook for work meetings, and Todoist for tasks. The problem is that no single app shows you everything in one place.

Notion can be that place. It's a workspace app where you build databases, dashboards, and custom views, so meetings, tasks, and project notes share one structure you design yourself.

To get events there without copying them by hand, 2sync's Google Calendar integration connects Google Calendar to a Notion database. Create an event in Google Calendar and within minutes it appears in Notion, with the title, date, time, location, and attendees mapped to Notion properties.

Edit the event in Notion, and the change syncs back to Google Calendar.

The same works for any combination. Sync your work Outlook calendar to one Notion database and your personal Google Calendar to another, then add Todoist tasks to a third. Dashboards, filters, and views in Notion can then span all of it.

If you use Notion Calendar, Morgen, or Reclaim on top of Google Calendar or Outlook, keep it: your calendar app handles the day-to-day view while 2sync moves the data into Notion. To go further:

• Best Notion calendar templates for ready-made database setups
• Best planner apps for apps that combine calendars with tasks and daily planning
• Best organization apps for tools that cover scheduling, tasks, and notes in one place

Frequently asked questions