Top 10 Best Shared Calendar Software of 2026

Proton Calendar is designed for team coordination where event details need protection, with end-to-end encryption covering the event data stored in the calendar. Calendar sharing is built around invitations and permission-scoped access to shared calendars rather than ad-hoc link sharing. Free-busy visibility supports conflict checking while keeping sensitive metadata constrained.

A key tradeoff is that encrypted event content can limit what external systems can read when they require full event fields, compared with calendar apps that expose plain event bodies. Proton Calendar fits situations where a small organization or project team needs a shared calendar for recurring meetings and still wants to keep event details protected from server-side access.

Reclaim.ai is a good fit for teams that need availability overlays and meeting conflict detection that can run automatically before an invite is sent. The scheduling engine uses working-hours settings and time-zone aware rules to place events and respect existing commitments. When delegates or schedulers must act on behalf of others, it supports delegated scheduling flows tied to calendar calendars rather than only email-based scheduling.

A key tradeoff is that rule-based scheduling requires clean configuration of availability windows and buffer behavior to avoid unexpected overrides. Reclaim.ai works best for appointment scheduling across roles where the same booking logic repeats, such as recurring interviews or weekly client check-ins with recurring constraints.

Sunsama’s shared calendar use pattern combines team scheduling with daily planning artifacts, so meeting blocks show up in the same workspace as tasks and notes. Calendar coordination works through event creation with invite handling and permission-controlled visibility, which supports team-level scheduling without each person maintaining their own list. The product also supports time-zone aware scheduling and recurring events, which helps distributed teams keep working-hours patterns consistent.

A key tradeoff is that the product experience prioritizes daily planning over deep calendar administration, so orgs needing granular delegated access policies may hit workflow limits. Sunsama fits teams that plan work in short cycles and want shared event placement to drive agenda preparation rather than only resolving conflicts.

Notion Calendar ties group scheduling to Notion pages, which keeps event details, ownership, and related docs in one workspace. Shared calendars show up as calendar views inside Notion, with recurring events and time-zone aware rendering.

It supports calendar subscriptions via standard calendar feeds and can sync events into Notion, which helps coordinate across systems. Deep customization is limited to what Notion views and templates allow, so some team scheduling workflows require complementary Notion setups.

Apple iCloud Calendar publishes a shared calendar that multiple people can subscribe to using iCloud accounts and standard calendar clients. It supports recurring events, invitations with RSVP, and consistent time-zone handling across Apple mobile and desktop apps.

Calendar sharing works well for lightweight team schedules such as personal and small-group coordination. Automation and governance are limited compared with enterprise group scheduling systems because there is no dedicated admin console for shared calendar permissions and no documented event-management API.

Calendly is an appointment scheduling system that turns one person’s availability rules into a shareable scheduling flow for multiple invitees. It provides recurring meeting types, routing options for team availability, and calendar event creation that stays aligned with working-hours and time-zone settings.

Core scheduling behavior is driven by configurable availability and meeting forms, while calendar events are pushed into the connected calendar accounts. For teams that need delegated scheduling without manually coordinating calendar invites, Calendly reduces back-and-forth by letting invitees book within defined constraints.

Zoho Calendar focuses on shared calendars for teams, including group and resource-style scheduling views for recurring and single meetings.

Delegated access and calendar permissions let organizations separate event ownership from day-to-day scheduling tasks for different roles.

Integration and data movement rely on synchronization patterns that support common calendar client workflows, including mobile access and interoperability.

Morgen is a shared calendar tool for teams that need scheduling, delegation, and recurring events in one workflow. It emphasizes invitation-based meeting management with visibility controls so attendees see the right availability without exposing full schedules.

Shared calendar views support practical planning across people and shared resources. Morgen also fits teams that want integration depth through an API surface for automation and custom flows.

Motion provides a shared calendar for team scheduling with a focus on availability-based booking and automated event creation. Shared booking rules let teams standardize when others can book time slots and how events are owned within the workspace.

Motion also supports calendar feeds for keeping schedules visible across systems and supports delegated access patterns for allowing others to manage events. Administrative controls include permissioned calendars and organization-level settings that affect how availability and booking behave.

Akiflow is a scheduling and calendar sharing tool designed for teams that coordinate work through shared availability and focused meeting workflows. It emphasizes availability-aware scheduling that combines time-zone handling, working-hours settings, and calendar synchronization into a single appointment flow.

Akiflow also supports structured meeting templates with recurring behavior and event coordination so teams can keep group ownership consistent across repeated meetings. Built for cross-tool work, it centers around availability and calendar integrations rather than acting as a full replacement for an enterprise calendar backend.