10 Best Calendar Apps of 2026

Google Calendar takes the top spot because it costs nothing and runs everywhere most people already are: in a web browser, on Android and in the iPhone app, all signed in with one Google account. Google's US App Store listing says the iPhone app can show Google Calendar events side by side with other calendars on the device, including Exchange and iCloud, so a work Exchange account and a personal Google calendar can sit in one view. Shared calendars let family, friends and colleagues view, add or modify events, and flight, hotel and restaurant confirmations from Gmail land on the calendar automatically. The limits show up for people with several accounts: Google describes Exchange and iCloud events as shown from calendars already on your device, so the merged view is a phone feature rather than a sync between services. There is also no time blocking or task scheduling beyond simple tasks, and some Gemini features in the app need a paid Google subscription.

Notion Calendar is the strongest free answer to the question in this list: how do I see my work and personal calendars in one place? Notion says the app integrates and syncs with Google Calendar accounts, Outlook calendars and Apple iCloud-synced calendars, which covers the three accounts most people end up with. It runs as a desktop app on macOS and Windows and as a mobile app on iPhone, iPad and Android, so the same merged view follows you from the office laptop to the phone. Meeting links can be created or joined from an event, including Apple Calendar meetings and custom links from other conferencing services. The tradeoffs are narrow: provider support stops at Google, Outlook and iCloud, there is no automatic task scheduling, and and it adds most for people already using Notion. Notion offers the app free, so trying it costs nothing.

Fantastical is the most complete calendar here for people who live on Apple devices and carry more than one account. Flexibits says it works with Google, Microsoft 365, Exchange, iCloud, Todoist, CalDAV and more, and its pitch is to unify work and personal calendars into one view. Calendar Sets let you flip between groups, for example a work set during the day and a family set in the evening, which is the feature most multi-account users end up relying on. It runs on Mac, Windows, iPhone, iPad, Apple Watch and Apple Vision Pro, and the Premium plan adds scheduling links and the Cardhop contacts app. Flexibits Premium costs $6.99 a month or $56.99 a year on the US App Store, with a 14-day trial and a family plan for up to 5 members. The free version covers a basic calendar. The main gap is Android: there is no app, so a household split between iPhone and Android will need something else.

Apple Calendar is the calendar most iPhone owners already have, and for many people it is enough. Apple's App Store listing says you can keep track of events from different calendar accounts together, connecting iCloud, Exchange, Google and others, and view them side by side in List, Day, Week or Month views with a color for each calendar. Reminders from the Reminders app now appear alongside meetings, and an iCloud calendar can be shared with family, colleagues or friends who can add events and get alerts. Invitations work through iCloud, Exchange and other accounts. It costs nothing and syncs across iPhone, iPad, Mac and Apple Watch through iCloud. The limits are the usual Apple ones: there is no Android app, so mixed households struggle, and there are no scheduling links, time blocking or advanced views, which is where Fantastical and BusyCal earn their price.

Outlook Calendar is the obvious pick when your job already runs on Microsoft 365 or Exchange, because meeting invites, room bookings and colleagues' availability all come through it. Microsoft offers the calendar free with a personal Outlook.com account and lets you share a calendar with others while setting their viewing or editing permissions. The Outlook app for iPhone works with Microsoft Exchange, Office 365, Outlook.com, Gmail, Yahoo and iCloud accounts, so a personal Gmail or iCloud calendar can sit next to the work one on your phone. Microsoft 365 Basic costs $1.99 a month in the US and adds ad-free email, calendar and contacts plus 100 GB of cloud storage. The downsides: the free version carries ads, the calendar lives inside an email client rather than a dedicated calendar app, and Copilot features need a Microsoft 365 Personal or Family plan, which starts at $6.99 a month.

Morgen is the pick for people whose problem is not only too many calendars but also too many task lists. Morgen says it consolidates calendars from Google, Outlook, Apple, Fastmail and more in one app, and it can pull tasks from Notion, ClickUp, Linear or Todoist and place them on the calendar as blocks of focus time. The AI Planner suggests a daily plan, and a booking page with scheduling links handles outside meetings. It is one of the few options here with a Linux app as well as Windows, macOS, mobile and browser versions. The cost is the catch: there is no permanent free plan, only a 14-day trial with no credit card, and the Pro plan costs $15 a month billed yearly or $30 month to month. Morgen offers a 30-day money-back guarantee and says it is Swiss-hosted and GDPR compliant.

Any.do comes at the calendar problem from the to-do list side. Its Personal plan is free and includes tasks and lists, reminders, a calendar, a daily planner and sync across devices, and Any.do says it works with other calendars such as Google Calendar, iCloud and Outlook. That makes it a practical way to see grocery runs and work deadlines next to meetings in one place. Premium costs $4.99 a month billed annually or $7.99 month to month and adds recurring tasks, WhatsApp reminders, AI features, color tags and location reminders. The Family plan, $8.33 a month billed annually for 4 members, adds a shared family space, a shared grocery list and up to 4 shared projects. The calendar view is simpler than Fantastical, Morgen or BusyCal, and recurring tasks, a basic need for many people, are locked to Premium.

BusyCal is the calendar for Mac owners who are tired of subscriptions. BusyMac sells it as a perpetual license for $49.99, with a 14-day free trial, and says that after the included update period you can keep using the last version you updated to forever. It also comes as part of Setapp. BusyMac's documentation covers using BusyCal with iCloud, Google, Office 365 through Microsoft Graph, Exchange, CalDAV and Todoist, so a work Exchange account and a personal iCloud calendar can live in one app. The views go further than Apple Calendar: Day, Week, Month, a Year Planner and List, plus an 8-day weather forecast, sunrise and sunset times and moon phases. Tasks sync with Apple's Reminders app and unfinished ones carry over to today. The limits are platform and age: it needs macOS 13.5 or later and has no Windows or Android version.

Proton Calendar is for people who see their calendar as private data. Proton says it secures all events with end-to-end encryption, and that event details including the title, description, location and people invited are encrypted so not even Proton can see them; events from people on other calendars are protected with zero-knowledge encryption. The free plan includes 3 personal calendars and lets you send and receive invitations. Upgrading to Mail Plus raises the limit to 25 calendars and adds calendar sharing; it was $2.49 a month for the first 12 months on yearly billing when we checked, renewing at $47.88 a year. Proton is based in Switzerland. The tradeoff for this list's purpose is that Proton Calendar is built to keep your schedule inside Proton, not to merge a Google work calendar and an Outlook account into a single view, so it suits people moving their personal schedule into a private home.

Reclaim.ai is different from the other entries: it does not replace your calendar app but works inside Google Calendar and Outlook. Its Calendar Sync feature, which Reclaim describes as defending time for events across all of your schedules, copies busy blocks from one calendar to another so colleagues cannot book over a school pickup on your personal calendar. Beyond syncing, it schedules focus time, recurring habits, buffer time and tasks around meetings. The Lite plan is free forever with 5 AI agents and support for Google Tasks, Slack, Zoom and Google Meet. Starter costs $10 per seat per month billed yearly or $12 month to month and adds integrations with Todoist, Asana, ClickUp, Jira and Linear, and Business is $15 billed yearly. The limits: only Google Calendar and Outlook are supported, so iCloud users are left out, and you still need a calendar app to view everything.