10 best calendar apps in 2026

Google Calendar is the best calendar app for most people in 2026. It's free, runs on every platform, and handles multiple calendars, shared scheduling, and recurring events without friction. If you use Notion as your workspace, you can pair your calendar with 2sync for automatic two-way sync between your calendar events and Notion databases.

Below, we compare 10 calendar apps across pricing, platforms, and features to help you find the right fit.

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.

Every app on this list works as a primary calendar. 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.

Pricing was verified in March 2026. Where an app connects to Google Calendar or Outlook, we note the 2sync conversion path so Notion users can build a connected workflow.

1. Google Calendar: best free calendar app

Google Calendar is the default choice for a reason. With over 500 million downloads on the Play Store 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 popular workspace app where teams and individuals organize projects, notes, and databases. It pulls events from Google Calendar 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 use Notion for project management, Notion Calendar removes 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 auto-check your availability.

Where Notion Calendar shows your schedule, 2sync handles the data sync. Notion Calendar displays events; 2sync writes them into Notion database properties with field mapping, filters, and two-way updates. They solve different problems and work well together.

✅ 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
• No Outlook calendar support yet
• 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 complex scheduling scenarios that simpler calendars struggle with: recurring meetings with exceptions, room and resource booking, and delegate access. Integration with Teams, SharePoint, and OneDrive means your meeting notes, files, and calendar stay connected.

If you track meetings in a Notion database, 2sync connects Outlook Calendar to Notion 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 for users who own multiple Apple devices. It syncs seamlessly across iPhone, iPad, Mac, and Apple Watch through iCloud, and its clean interface keeps the focus on your schedule rather than feature menus. Natural language input lets you type "Lunch with Sarah Friday at noon" and the calendar interprets it automatically.

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
• No built-in task management

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. 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 you need tasks and calendar events in one view. The calendar layout turns your project into a visual timeline, and labels, priorities, and filters help you focus on what matters. It runs on every platform, including Linux, and has strong integrations 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:

• Calendar view is for tasks only, not external calendar events
• Reminders require Pro plan
• 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.

The recent addition of a Windows app extends Fantastical beyond Apple-only territory, though 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
• Windows app is newer and less mature
• No Android support

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 a scheduling link system, focus time blocks, and task sidebar. It runs natively on Mac, Windows, Linux, iOS, and Android.

Morgen also pulls tasks from Notion, Todoist, and Linear into its 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 requires a dedicated sync tool like 2sync.

The trade-off is price. Morgen removed its free plan in 2025, and at $15/month (annual billing), 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. Amie: best design-forward calendar

Amie takes a design-first approach to calendar management. The interface is minimal and visually refined, with smooth animations, keyboard shortcuts for every action, and an integrated task system. It connects to Google Calendar and brings email, calendar, and tasks into a single workspace.

Why choose Amie?

Amie appeals to users who care about aesthetics and speed. Keyboard-driven navigation makes event creation and management fast, and the combined calendar-plus-tasks view reduces app switching. Recent updates added AI meeting notes and recording, positioning Amie as a meeting-focused productivity tool.

Since Amie connects to Google Calendar, it fits into a broader workflow: Amie handles the daily calendar experience while a tool like 2sync can push the underlying Google Calendar data into Notion databases with field mapping and filters.

✅ Pros:

• Polished, modern interface with smooth animations
• Keyboard-first design for speed
• Integrated tasks and AI meeting notes
• Works with Google Calendar

❌ Cons:

• No free plan (7-day trial only)
• No Android or native Windows app
• $20/month is premium pricing for a calendar

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 tier includes three calendars, event invitations, and basic functionality. Paid plans add calendar sharing, more storage, and access to Proton's full suite (Mail, Drive, VPN, Pass).

The trade-off is a smaller integration ecosystem. Proton Calendar doesn't connect to Google Calendar or Outlook, so it works best as a standalone calendar or within the Proton ecosystem.

✅ 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 integration with Google Calendar or Outlook
• Fewer features than mainstream alternatives
• Calendar sharing requires a paid plan
• No native desktop app (web-based on desktop)

10. Clockwise: best AI calendar optimizer

Clockwise doesn't replace your calendar. It optimizes it. Working as a layer on top of Google Calendar or Outlook, Clockwise uses AI to automatically schedule focus time, move flexible meetings to create uninterrupted blocks, and protect personal time like lunch and commute.

Why choose Clockwise?

Clockwise is for people whose calendars are already full. It analyzes your meeting patterns, finds gaps, and creates focus time blocks that move dynamically as meetings shift. The team version coordinates across calendars to find optimal meeting times that protect everyone's focus time.

Since Clockwise 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 Clockwise-optimized schedule into a Notion database automatically.

✅ Pros:

• AI-powered schedule optimization
• Automatic focus time protection
• Works with existing Google Calendar or Outlook
• Free tier covers individual scheduling

❌ Cons:

• Not a standalone calendar (requires Google Calendar or Outlook)
• No native mobile app
• Team features require paid plan
• Limited to Chrome and Firefox browser extensions

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 solves this. Notion is a workspace app where you can build databases, dashboards, and custom views for anything. Think of it as a flexible hub that can hold all your data, from project plans to meeting notes, structured exactly the way you want.

2sync connects your calendars to Notion automatically. You create an event in Google Calendar, and within minutes it appears in your Notion database with the title, date, time, location, and attendees mapped to Notion properties. Edit it in Notion, and the change syncs back.

This works for any combination. Sync your work Outlook calendar to one Notion database and your personal Google Calendar to another. Add Todoist tasks to a third. Every calendar and task list feeds into Notion, where you can build dashboards, filters, and views across all your data.

If you use Notion Calendar, Amie, Morgen, or Clockwise alongside Google Calendar or Outlook, 2sync handles the data layer while your preferred calendar app handles the daily experience. See our best Notion calendar templates for ready-made database setups. For apps that combine calendars with task management and daily planning features, see our best planner apps guide. For tools that cover scheduling, tasks, and notes in one app, see our best organization apps roundup.

Frequently asked questions