Top 20 Alternatives to Google Calendar in Calendar, Notebook & Scheduling Software

Full‑featured calendar tightly integrated with email, contacts, and Office 365 apps; supports shared calendars, meeting invites, and AI‑driven time suggestions.

Native macOS/iOS calendar with seamless iCloud sync, natural language event creation, and deep integration with Siri and native apps.

Premium macOS/iOS calendar with beautiful UI, natural language parsing, weather integration, and powerful task‑calendar merging.

Web‑based calendar with group scheduling, resource booking, and integration across Zoho’s suite (CRM, Projects, Mail).

Shared calendar for teams and families; offers custom sub‑calendars, color‑coding, and public embed options without user accounts.

All‑in‑one family planner with shared calendar, shopping lists, meal planning, and a kid‑friendly interface.

Automated meeting scheduler that syncs with existing calendars, offers customizable booking pages, and supports group events.

Poll‑based scheduling tool that finds optimal meeting times across participants, with calendar integrations and automatic reminders.

Appointment booking system for services businesses; includes calendar view, online booking page, and payment integration.

Shared family and team calendar app allowing multiple views, chat notes per event, and file attachments.

AI‑powered calendar optimizer that automatically blocks focus time, resolves conflicts, and suggests optimal meeting windows.

Smart scheduling assistant that protects focus time, auto‑schedules tasks, and dynamically adjusts based on meeting changes.

All‑in‑one workspace where you can embed calendars, take notes, manage tasks, and build custom dashboards in one place.

Project management platform with built-in calendar view, task scheduling, time‑blocking, and integrated notes.

Work management tool offering timeline and calendar views, task assignments, and robust project‑level scheduling.

Kanban board system that can display cards in a calendar Power‑Up, ideal for visual scheduling and note attachment.

Work OS with flexible calendar widgets, timeline tracking, and integrated docs for team scheduling and note‑taking.

Daily planner that merges tasks from multiple tools into a unified calendar view, supporting notes and time‑boxing.

Developer‑focused scheduling API and UI that syncs with Google, Outlook, and iCloud calendars; offers embeddable booking pages.

Open‑source calendar add‑on for the Thunderbird email client; supports multiple calendars, task lists, and offline access.