The best 100% free calendar apps in 2026

Search for a free calendar app and most of what comes back is free to download. Then you hit the upgrade screen. Ads you pay to remove. A widget behind a subscription. A free trial that turns into a monthly charge.

This list is stricter. Every app here has no paid tier at all. Nothing to unlock and nothing to cancel.

What counts as 100% free

An app made this list only if it passed all three:

• No subscription or premium plan.
• No features locked behind a payment.
• No paying to remove ads.

That rules out most of the big names. More on those below.

The 100% free calendar apps at a glance

1. SoKal: best free calendar for friends

Best for: seeing your friends' plans next to your own.

SoKal is a full calendar with a social layer built in. Connect Google, Apple, or Outlook, add your friends, and choose what each person can see by type of event. Anything you don't share shows as busy.

Every feature is free on every platform: iPhone, iPad, Android, Mac, and Windows or any browser through the web app. There is no premium tier.

Full disclosure: we make SoKal. It's here because it passes the rules above, and it's the only app on this list built around friends.

2. Apple Calendar: best for Apple users

Best for: anyone who lives on Apple devices.

Apple Calendar comes with every iPhone, iPad, and Mac. No subscription, no ads. You can share iCloud calendars with family or friends and see them update on every Apple device.

The catch is Android. There's no app for it, so anyone outside Apple's world is stuck with iCloud.com in a browser.

3. Notion Calendar: best free calendar for work

Best for: work schedules and people already in Notion.

Notion Calendar has no price tag. It connects to Google Calendar, Outlook, and iCloud, and it ties into Notion docs if you use them. Notion's workspace has paid plans, but you don't need one to use the calendar.

It's built for meetings and focus time. If you want to plan a Friday night with friends, it won't help much.

4. Fossify Calendar: best free calendar for Android

Best for: Android users who care about privacy.

Fossify Calendar is open source and has no ads. It runs on your phone and can sync with Google Calendar, Outlook, Nextcloud, and Exchange through CalDAV.

It's Android only, and it has no sharing features of its own. Think of it as a clean, private replacement for your phone's default calendar.

Almost free: popular apps that didn't make the cut

These are good apps. They just aren't 100% free. Prices are as of October 2026 on the US App Store.

Google Calendar. The everyday calendar costs nothing. But appointment schedules have premium features, like multiple booking pages, automatic email reminders, and co-hosts, that need a Google One Premium or Google Workspace plan. If you never take bookings, you'll never notice.

Outlook. The free version of Outlook email and calendar is ad-supported. A Microsoft 365 subscription removes the ads.

TimeTree. A popular free shared calendar with ads. TimeTree Premium costs $4.49 a month or $44.99 a year. It hides ads and adds extras like an hourly view.

Howbout. A free social calendar for friends. Howbout+ costs $3.99 a month or $39.99 a year and covers multi-add for shifts and classes, a week view widget, and calendar themes.

Which one should you pick?

• You want your friends' plans in your calendar: SoKal.
• Everything you own is Apple: Apple Calendar.
• Your calendar is mostly meetings: Notion Calendar.
• You're on Android and want privacy: Fossify Calendar.

You can also mix them. SoKal syncs with Google, Apple, and Outlook, so your existing calendar stays where it is.

Comparing apps for plans with friends? See the best shared calendar apps.

Get started

Connect your calendar, add a few friends, and choose what each of them can see. It's free, and it stays free. Get SoKal.