6 tools to create
your shared calendar
In a professional world where team coordination is a major challenge, the shared calendar has become an essential tool. Whether it’s for scheduling meetings, having a common view of the team’s agenda, or simply needing a resource management solution, having a reliable collaborative calendar helps save time, reduce scheduling conflicts, and optimize teamwork.
But with so many tools available on the market, how do you make the right choice? Ease of use, integration with other software, mobile accessibility, advanced features—there are many selection criteria to consider.
In this article, we present our selection of the 6 best tools for creating a shared calendar, highlighting their advantages, disadvantages, and unique features. And of course, we’ll show you how Acollab can be a powerful ally in this process.
1. Google Agenda :the essential classic
Why choose it ?
Google Calendar is one of the most widely used tools in the world. Free, intuitive, and seamlessly integrated into the Google ecosystem (Gmail, Google Meet, Drive, etc.), it allows users to create individual or shared calendars, manage recurring events, send invitations, and receive reminders.

Key features :
- Create multiple shared calendars
- Automatic synchronization across your device
- Manage access rights (view or edit permissions)
- Integration with external tools (Zoom, Slack, Trello, etc.)
Ideal for :
Freelancers and businesses already using Google Workspace.
Disadvantages :
- Less suitable for work teams or organizations structured with multiple teams
- Limited task or project milestone visualization

2. Outlook Calendar (Microsoft 365) : for Microsoft users
Why choose it ?
For companies already using the Microsoft 365 suite, Outlook Calendar is a natural choice. It integrates seamlessly with Teams, OneNote, and other Microsoft tools, making internal coordination easier.
Key features :
- Shared calendars integrated with Outlook and Team
- Multi-calendar view
- Reminders, availability management, automatic invitations
- Built-in meeting scheduling tools
Ideal for :
Businesses already organized around Microsoft 365.

Disadvantages :
- Less accessible for those without a Microsoft subscription
- Interface can be a bit overwhelming for beginners
3. Acollab: the comprehensive French solution
Why choose it ?
Acollab is much more than just a shared calendar: it’s a comprehensive collaborative platform designed for teamwork, featuring project management, document storage, discussions, and of course, a shared schedule.
Key features :
- Multi-calendar view
- Color-coded categories for better visibility
- Reminders, automatic invitations, confidential event management
- Calendar view by project, user, or team
- Ability to share the calendar planning view externally
- Access rights management for the calendar (viewer, editor, administrator)
- Mobile app
- Secure hosting in France

Ideal for :
Small businesses, SMEs, agencies, local authorities, firms, or associations looking to centralize project management and communication.
Advantages :
- All-in-one platform
- Excellent traceability
- Responsive customer support in French
- Centralization / no data fragmentation
Disadvantages :
Less known than the major American players, so worth discovering
4. Teamup : the simple and visual collaborative calendar
Why choose it ?
Teamup is a tool exclusively dedicated to managing shared calendars. It stands out for its clear interface and flexibility, especially suited for associations, schools, or event groups.
Key features :
- Creation of color calendars
- Sharing via link (no account required)
- Views by day/week/month/year/planning
- Highly functional mobile app

Ideal for :
Event teams, educational institutions, or associations.
Disadvantages :
- No task management or communication features
- Limited free version
5. Trello + Calendar Power-Up : An agile approach to scheduling
Why choose it ?
Trello is primarily a visual project management tool based on the Kanban method. But thanks to its “Calendar” Power-Up, it also becomes a very effective visual shared calendar.

Key features :
- Visualization of cards in a calendar
- Synchronization with Google Calendar
- Tracking deadlines and priorities
- Task assignment to members
Ideal for :
Agile or creative teams, marketing projects, freelancers.
Disadvantages :
- Requires initial setup
- The calendar remains a secondary feature within the tool
6. Notion : A calendar integrated into a customized workspace
Why choose it ?
Notion is the go-to tool for teams seeking flexibility. It allows you to create a customized workspace that includes documents, databases, wikis… and of course, shared calendars.
Key features :
- Creation of customized calendars within each workspace
- Dynamic links between tasks, pages, and events
- Real-time collaborative management
- Synchronization with third-party tools via Zapier

Ideal for :
Start-ups, creative or technical teams, freelancers.
Disadvantages :
- Slightly longer learning curve
- Not originally designed as a calendar tool
Why use Acollab for your shared calendar?
Acollab perfectly meets the needs of modern teams who want to:
- Centralize information in a single space
- Save time in task planning
- Engage all stakeholders (internal and external)
- Enhance transparency and accountability
With Acollab, you get a platform designed for collaborative work, featuring a shared calendar, project management tools, team discussions, and document sharing. It’s ideal for avoiding scheduling conflicts, keeping track of decisions, and streamlining communication among team members.
Conclusion
The shared calendar has become an essential tool for coordinating teams, prioritizing tasks, and ensuring effective time management. Whether you are a small business, an SME, or a large enterprise, there is a solution tailored to your needs.
From Google Calendar to Notion, passing through Trello, each tool has its own strengths. But if you’re looking for a French, secure, comprehensive platform designed for teams, Acollab is an excellent choice to centralize all aspects of your project management—including scheduling. Don’t hesitate to book a session with the team for a personalized demo of the tool.