# The 6 Best Calendar Apps in 2026: Tested and Ranked Written by Marvin Aziz Growth Engineer at Lindy focused on AI agents, automation, and product-led growth. Reviewed by Michelle Liu Senior Product Manager at Lindy. She’s focused on making Lindy the most powerful yet easy-to-use AI workflow automation app. Last Updated: September 18, 2026 Expert Verified ## Table of contents - [Calendar app definition](/content/blog/calendar-apps#what-are-calendar-apps/index.html) - [How I tested them](/content/blog/calendar-apps#how-i-tested-these-calendar-apps/index.html) - [6 best apps at a glance](/content/blog/calendar-apps#the-6-best-calendar-apps-at-a-glance/index.html) **_I had four calendar apps open on a Tuesday afternoon..._** Over the next eight weeks, I tested 11 calendar apps as a freelance ops consultant... ## What are calendar apps? Calendar apps let you **create, view, and manage scheduled events** in a shared visual timeline. At the most basic level, they store meetings, deadlines, and reminders in a day, week, or month view, so you can see what's coming without having to hold everything in your head. **Here's what separates a calendar app worth keeping from one you stop opening after two weeks:** - **Cross-platform consistency:** Check whether the version you'll use most has full feature parity before committing. - **Free tier depth:** A free tier worth using should handle your core scheduling without requiring an upgrade. - **Scheduling friction:** If creating an event takes more than three steps, you'll stop updating it when things get busy. - **Integration stack:** Your calendar needs to sync with your email and share events with people on other platforms. - **AI that changes something:** The only version worth paying for is one where the AI saves a concrete step. ## How I tested these calendar apps I ran 11 apps through eight weeks of real scheduling work as a freelance ops consultant... **Each was measured against the same six criteria:** - **Cross-platform availability** - **Free tier quality** - **Design** - **Calendar as backbone** - **Team sharing** - **AI depth** The six that made it each solve a distinct scheduling problem well enough to recommend to a specific kind of user. ## The 6 best calendar apps at a glance | Tool | Best for | Starting price | Free plan | Platforms | Standout feature | | --- | --- | --- | --- | --- | --- | | [Google Calendar](https://workspace.google.com/products/calendar/) | Most people | Free | Yes | Android, iOS, Web | Syncs with every tool in your stack | | [Apple Calendar](https://apps.apple.com/us/app/calendar/id1108185179) | Apple-only users | Free | Yes | iOS, Mac, iPad, Web | Deep Siri and Reminders integration | | [Microsoft Outlook Calendar](https://www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook) | Microsoft 365 Teams | Free (Microsoft 365 from $8.40/user/month with Teams) | Yes | Windows, Mac, iOS, Android, Web | Scheduling Assistant and room booking | | [Fantastical](https://flexibits.com/fantastical) | Apple power users | Free basic; $6.99 per month | Yes | Mac, iOS, iPad, Windows | Natural language input and Calendar Sets | | [Morgen](https://www.morgen.so/) | Task-aware scheduling | $30 per month | No | Mac, Windows, Linux, Web, iOS, Android | AI Planner that time-blocks tasks alongside meetings | | [Lindy](/content/site-root.html) | Teams on Slack who need scheduling handled end-to-end | From $29.99 per month per user | No free plan. 7-day trial for Slack joiners. | Slack, iMessage, Web | End-to-end meeting coordination from a single Slack mention | ## 1. Google Calendar: Best free calendar for most people **What is it?** [**Google Calendar**](https://workspace.google.com/products/calendar/) is a free cloud-based calendar from Google that syncs across every major platform and connects natively to Gmail, Google Meet, and Google Workspace. ### Why I picked it I ran a test I'd been putting off... ### Key features - **Gemini integration:** Ask Gemini to find a time that works for everyone... - **Google Tasks in calendar view:** Surfaces your task list... - **Working hours:** On a work or school account, set your availability once... - **Appointment scheduling:** Generates a shareable booking page... ### Limitations Google Calendar has no native Mac desktop app. ### Pricing Teams can upgrade to Google Workspace Business Starter at [**$8.40/user/month**](https://workspace.google.com/pricing)... ## 2. Apple Calendar: Best free option for Apple users **What is it?** [**Apple Calendar**](https://apps.apple.com/us/app/calendar/id1108185179) is the built-in calendar app on iPhone, Mac, and iPad... ### Why I picked it I switched to Apple Calendar as my sole calendar for one full week... ### Key features - **Siri event creation:** Ask Siri to add an event... - **Reminders integration:** Tasks from the Reminders app... - **Focus filters:** Switching to Work Focus tells Apple Calendar... ### Limitations Step outside the Apple ecosystem and Apple Calendar loses almost everything. ### Pricing Free with an Apple ID. ## 3. Microsoft Outlook Calendar: Best for Microsoft 365 teams [**Outlook Calendar**](https://www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook) is the scheduling layer built into Microsoft 365... ### Why I picked it I needed to schedule a planning session across seven people... ### Key features - **Room booking:** Conference room availability is built... - **Teams meeting links:** Automatically attached when you create a meeting... ### Limitations Outlook comes in three versions... ### Pricing Free on all platforms with a personal Microsoft account... ## 4. Fantastical by Flexibits: Best calendar app for design [**Fantastical**](https://flexibits.com/fantastical) is a third-party calendar app for Mac, iPhone, iPad, and Windows... ### Why I picked it **I manage three calendar accounts**... ### Key features - **Left sidebar:** Shows a mini month view... - **Natural language input:** Type an event in plain language... ### Limitations The price is the honest sticking point. ### Pricing Free tier available with basic event creation... ## 5. Morgen: Best AI calendar for task-aware scheduling [**Morgen**](https://www.morgen.so/) is a calendar and task planner... ### Why I picked it I wanted to know whether AI-planned time blocking... ### Key features - **AI Planner timeline:** Presents your full day as a color-coded visual... ### Limitations Morgen's AI scheduling assumes you'll follow the plan it builds. ### Pricing No free plan, but there is a 14-day trial with full access... ## 6. Lindy: Best for Slack teams who need scheduling handled end-to-end [**Lindy**](/content/site-root.html) is an AI teammate... ### Why I picked it I kept running into the same wall. ### Key features - **Meeting prep:** Ask Lindy in Slack before a call... ### Limitations Lindy connects to your existing calendar and works on top of it. ### Pricing Lindy starts at [**$29.99 per user per month**](/content/pricing/index.html)... ## Which calendar app should you use? The right calendar app is the one that fits where your work already lives. Switching calendar apps costs about a week of friction. Picking the wrong one costs you that week every time you need to coordinate something. **Here's how the picks break down:** - **You're on Google Workspace:** Google Calendar is already in your account... - **You're on Microsoft 365:** Outlook Calendar is already there... - **You're Apple-only:** Apple Calendar is free and handles the common case well. - **You want AI to plan your schedule around your meetings:** Morgen is the pick from this list... - **When the calendar invite is just the start:** Lindy handles the prep... ## FAQs ### What is the best free calendar app? **Google Calendar** is the best free calendar app for most people. ### Is Google Calendar better than Apple Calendar? Yes, Google Calendar is better than Apple Calendar for most people... ### What calendar app works best with Outlook? **Microsoft Outlook Calendar** works best with Outlook... ### What's the difference between a calendar app and an AI scheduling assistant? A **calendar app** shows your schedule and lets you create events... ### Which calendar app is best for remote teams? **Google Calendar** is the best calendar app for remote teams.