9 Best Shared Calendar Apps of 2026

Google Calendar wins this list because it does the core job well and costs nothing. Any calendar you own can be shared with individual email addresses or a whole Google group, and each person gets one of five permission levels: free/busy only, event details, make changes without seeing private events, make changes and see details, or make changes and manage sharing. That range matters for clubs, where a coach or organizer edits and members only read. A calendar can also be made public, so people without a Google Account can find it, subscribe from other apps or follow it in search results. Google's iPhone app description says shared calendars let family, friends and colleagues view, add or modify events. The limits are practical ones. Google's help steps for sharing start on a computer, admins of work or school accounts can switch sharing off, and there is nothing built in for group chat or voting on a date, so friend groups still plan in a separate messaging app.

TimeTree treats sharing as the starting point rather than a setting. You create a calendar for a group, send an invite, and everyone in that group sees and adds to the same schedule. TimeTree's site names family, hobbies and school as typical groups, and you can keep as many calendars as you need, then use filters to see them all together or switch to one. That model suits people who belong to several circles at once, such as a family, a five-a-side team and a book club, because each group's plans stay in their own calendar. The free version covers this sharing and shows ads. Premium costs 4.49 USD per month or 44.99 USD per year, both with the first month free, and adds an ad-free calendar, file attachments, a vertical view of up to 3 days, pinned events and dedicated support. TimeTree is phone-first and aimed at personal groups, so teams that need booking pages or detailed admin controls will find more in Google Calendar or Teamup.

Howbout is the most social app on this list. Instead of starting from a shared calendar, it starts from the planning problem: finding a time that works for a group. While you make a plan, you can see your group's schedules and check everyone's availability for the date you have in mind. Plans carry headers, locations, details, RSVPs and reminders, and each event has a group chat for updates, photos, videos and GIFs. Privacy is flexible, since you can share your whole calendar or only your availability. Howbout also syncs work, school and personal calendars so plans do not clash, and it says it has 10M downloads. The app is free; Howbout+ costs $4.99 per month or $39.99 per year on the US App Store and adds colors, themes and smarter planning tools. It runs on iOS and Android only, with no web app mentioned on its site, and it has no admin roles, so it fits friends and couples better than clubs with officers or small work teams.

Teamup is the most capable organizer's tool here. One master calendar holds color-coded sub-calendars for teams, rooms or activities, and the same events can be shown in 12 views, from a classic month grid to Timeline, Scheduler, Tiles and a spreadsheet-style Table. The calendar administrator controls access with 9 permission levels, and sensitive event details can stay hidden from read-only users. Events can carry comments, sign-ups, files, images and links, and any event can be shared as its own web page, which suits clubs posting a fixture or a volunteer shift. Pricing is in USD per master calendar, not per person. The free plan allows 5 sub-calendars, 5 users, 1 custom field and 1 year of history, with no end date. Plus costs $12 per month billed yearly or $15 billed monthly and raises the limits to 12 sub-calendars and 12 users, and Pro costs $30 per month billed yearly for 25 users. The trade-off is depth: more setup than TimeTree or Howbout, and no chat built for casual friend plans.

Cozi is built for households rather than friend groups. The whole family shares one account and each person signs in their own way, so everyone sees the same calendar, color-coded by person, with reminders and agenda emails. The calendar sits next to shared grocery lists, to-do lists and a meal planner that can send ingredients to the shopping list, which makes it more of a family command center than a plain calendar. Cozi can bring in events from Google, Outlook and Apple calendars as well as school calendars and team schedules from TeamSnap and SportsEngine. The free version covers the calendar, lists and recipe library. Cozi Gold costs $39 per year and removes ads while adding month view on mobile, calendar search, change notifications for everyone and a birthday tracker. Cozi Max costs $79 per year and adds AI event import from emails and AI meal planning. For a club or a group of friends who each have their own accounts, Cozi's single family account is the wrong shape.

For a group that is all Apple, iCloud Calendar is the shared calendar you already have. Apple's App Store listing says you can share an iCloud calendar with family, colleagues or friends, who can see events, add more, receive alerts or make changes. On iCloud.com you choose Allow editing or Read-Only for each invitee, and anyone in the calendar can track who has accepted, declined or not yet responded. The catch is the mixed group. Private sharing requires invitees to have an Apple Account and use iCloud, so an Android user in your friend group cannot edit. A public calendar fixes visibility, since invitees get a URL and do not need iCloud, but only the owner can change a public calendar. Apple also notes that Calendar on iCloud.com needs a tablet or computer. The app pulls in Exchange, Google and other accounts, so Apple users can still see a Google-shared group calendar next to their own events.

Outlook is the obvious shared calendar for groups that already run on Microsoft accounts. Microsoft's support steps are short: choose Share Calendar, pick the calendar, add people and set an access level for each one. Recipients accept from the email, then open it under Shared Calendars and can overlay it on their own calendar to compare schedules side by side. That overlay view is useful for a small team or a family coordinating around work commitments. Outlook itself is available free, and Microsoft 365 Basic costs $19.99 per year in the US, making it the cheapest paid upgrade on this list. Outlook's limits for this audience are about fit rather than capability. It is designed around email and work meetings, and there is no availability finder or event chat of the kind Howbout offers, so friend groups tend to prefer lighter apps.

Zoho Calendar describes itself as a free online calendar tool for individuals and teams, and its feature set leans toward the team side. Sharing lets you grant each member a level of access, from See Free/Busy up to full editing, and free/busy sharing lets others see your availability in real time and propose times. Events support RSVPs, threaded invite discussions under each event, delivery status for invites and a view of everyone who has yet to respond. Team calendars and resource booking help with group outings or shared rooms, and you can embed a calendar directly in a website or blog, which suits a club or society that wants a public schedule. It syncs with Google and Outlook as well as other Zoho apps. For a friend group the drawbacks are clear: the language and features are aimed at businesses, and there are no shared lists or casual chat. For a small volunteer team that wants permissions and embedding without paying, it is a fair option.

FamilyWall packs a shared calendar into a wider family hub. The free plan includes the shared calendar, shopping lists, to-do lists, a messenger and a contact book, so a household can coordinate without a separate chat app. Premium costs $4.99 per month or $44.99 billed annually, can be canceled at any time, and adds Google and Outlook calendar sync, a meal planner, a budget tracker that can be shared with family or friends, a timetable planner for recurring or alternating schedules, real-time location sharing, place alerts and 250 times more storage. The timetable planner is a good fit for families juggling school weeks or shared custody. The weak spot for this list is that syncing with Google or Outlook, which many groups depend on, sits behind the paywall, and the breadth of features makes it heavier than TimeTree if a shared calendar is all you want. Premium also costs more than Cozi Gold for a similar family audience.