Best Calendar Software - Page 10

How Many Calendar Software Products Does G2 Track?

Total Products under this Category: 167

Category Stats (Oct 2026)

  • Average Rating: 4.47/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Modern Events Calendar (+5.35%) - Among all products in this category, Modern Events Calendar recorded the largest rating increase compared to last month

Last updated: October 23, 2026

How Does G2 Rank Calendar Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 151,200+ Authentic Reviews
  • 167+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Calendar Software

G2 Grid® for Calendar Software plotting products by satisfaction and market presence

Highlighted products: Google Workspace, Microsoft Outlook, Zoom Workplace, Microsoft 365, ClickUp, Calendly, Reclaim.ai, and GlossGenius.

Underlying data: [Grid® JSON](https://www.g2.com/categories/calendar-software/grids.json?focus%5B%5D=google-workspace&focus%5B%5D=microsoft-outlook&focus%5B%5D=zoom-workplace&focus%5B%5D=microsoft365&focus%5B%5D=clickup&focus%5B%5D=calendly&focus%5B%5D=reclaim-ai&focus%5B%5D=glossgenius)

Nelio Content

Nelio Content is the editorial calendar and content assistant for WordPress. It’s designed to help you to schedule, create, and promote your blog’s content efficiently. Its ultimate goal is to assist you during all the tasks involved in content creation and promotion in social media. Nelio Content doesn’t give you additional work—it’s the perfect companion for running a successful blog and writing outstanding posts saving tons of time. Nelio Content helps more than 6,000 sites stay organized in more than 100 countries around the world.

Who Is the Company Behind Nelio Content?

  • Seller: Nelio
  • Year Founded: 2013
  • HQ Location: Barcelona,
  • Twitter: @NelioSoft
    2,458 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    4 employees on LinkedIn®

Neocal

Neocal is an AI-powered calendar application designed to streamline scheduling through natural language interactions. Users can manage their calendars by simply stating commands like "Schedule lunch with Sarah next Tuesday," and Neocal handles the rest, offering a modern and intuitive experience. Key Features and Functionality: - Natural Language Processing: Allows users to schedule, update, and manage events using everyday language, eliminating the need for manual input. - Smart Scheduling Links: Provides clients with a seamless booking interface that automatically manages time zones, availability, and integrations, ensuring conflict-free scheduling. - WhatsApp Integration: Enables users to interact with their calendar directly through WhatsApp, facilitating instant responses and natural conversations for efficient calendar management. - Multiple Calendar Support: Supports integration with multiple calendars, including Google Calendar, with plans to add Outlook and Apple Calendar integrations soon. Primary Value and User Solutions: Neocal simplifies calendar management by allowing users to interact with their schedules through natural language, reducing the time and effort required for manual entries. Its intelligent features, such as smart scheduling links and WhatsApp integration, enhance productivity by ensuring seamless coordination and communication. By automating routine scheduling tasks and preventing conflicts, Neocal empowers users to focus on their priorities without the hassle of traditional calendar management.

Who Is the Company Behind Neocal?

AI can help you find the answers. G2 helps you trust them.

Connect G2 to Claude or ChatGPT for answers grounded in G2's trusted reviews, comparisons, and pricing from real user insights.

How it works

NextUp Alert

NextUp Alert is a desktop reminder app for Windows 10 and 11, offering continuous visual feedback for calendar management. Integrated into the Windows taskbar, it displays a live countdown to the next meeting using a traffic light system: green for ample time, yellow for approaching, and red for imminent meetings. It connects to Google Calendar and Microsoft 365 Outlook, merging accounts into a unified timeline. Filters exclude non-essential alerts. Reminders appear via taskbar countdowns, full-screen popups, and voice announcements. Popups overlay windows with a live countdown, and voice reminders announce time remaining. The app extracts meeting links for one-click join functionality for Teams, Zoom, and Google Meet. Running as a native desktop program, it operates in the background without needing browser or Outlook windows open. It supports ARM64 architecture. Optional paid features include AI-powered day briefings and advanced voice announcements.

Who Is the Company Behind NextUp Alert?

OFWSync

OFWSync.com syncs your OurFamilyWizard co-parenting calendar to a subscription calendar feed, so custody schedules and events show up automatically in Google Calendar, Outlook, or Apple Calendar. It pulls updates from OFW on a regular schedule, with a daily-sync tier and a faster hourly-sync tier. Parents no longer have to log into OFW or copy events by hand to see what’s coming up.

Who Is the Company Behind OFWSync?

OnTime Group Calendar for Microsoft

MS Outlook’s and MS Teams’s Best Calendar Friend. OnTime Group Calendar is the most versatile and powerful scheduling tool available. It comes in 9 languages and supports both Exchange on Premises and M365 users, and includes add-ons such as Mobile, Pollarity (polls and voting system), Catering Manager, Visitor Manager, and a lot of integration in MS Teams. In the wake of the pandemic our customers are asking for OnTime features to support a safe return to the offices and a future that includes hybrid workplaces. Our all new Out of Office Workflow and Shared Desks features are the first deliveries to support this. Multi tenant support is available in OnTime, supporting both on-premises and cloud in one og just merge several tenant users into one collaborative overview.

Who Is the Company Behind OnTime Group Calendar for Microsoft?

Who Uses This Product?

  • Company Size: 100% Small

Parasara Jyotish

Parasara Jyotish is Vedic astrology software that generates birth charts and horoscopes from exact birth details. It creates complete janam kundli charts, including divisional charts from Rāśi (D1) to Ṣaṣṭyāṁśa (D60), and identifies over 300 yogic combinations like Rāja yoga and Dhana yoga. The software supports five dasha systems—Vimśottarī, Nārāyaṇa, Sudāśā, Jaimini Rāśi, and Dṛg dasha—calculated with precise timing. Daily horoscopes use the Moon sign, birth nakshatra, and current dasha, while monthly and yearly predictions include Tithi Praveśa, transit analysis, and Sade Sati. Kundli matching features assess marriage compatibility, Manglik dosha, and spouse destiny. House-by-house analysis covers career, marriage, wealth, health, and spirituality. Using Lahiri ayanāṁśa and ephemeris data, it ensures accurate planetary positions. It generates premium high quality structured astrology report, jyotish qnas.

Who Is the Company Behind Parasara Jyotish?

Proton Calendar

Who Is the Company Behind Proton Calendar?

  • Seller: Proton AG
  • Year Founded: 2014
  • HQ Location: Plan-les-Ouates, Geneva, Switzerland
  • Twitter: @ProtonPrivacy
    363,085 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    973 employees on LinkedIn®

Radar

Radar reads your calendar, inbox, task lists and CRM if you have one, and shows what is closing in over the next 90 days, and whether you have time for it.

Who Is the Company Behind Radar?

Rainlendar

Rainlendar is a desktop calendar that helps users keep records of their daily tasks, important events and project deadlines.

Who Is the Company Behind Rainlendar?

  • Seller: Rainlendar
  • HQ Location: N/A
  • Twitter: @rainlendar
    282 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Ricordario

Ricordario is a web-based deadline tracker for Italian small and medium businesses, tradespeople and professionals. It keeps every recurring deadline of company assets in one place and sends email reminders before the due date, on the day and afterwards. Four areas in one tool: - Vehicles and drivers: road tax, roadworthiness inspection, insurance, servicing with maintenance history and mileage, driver licences, fines, leasing and rental contracts. - Real estate: property taxes (IMU, TARI), insurance, condominium fees, maintenance, rental income and leases. - Machinery and equipment: periodic inspections, warranties, service contracts, maintenance history. - Other deadlines: documents, subscriptions, loans and recurring payments. A monthly spending forecast shows what each month will cost. Nothing to install: it runs in the browser on PC and phone. Free plan forever, 30-day trial, one-time payments with no automatic renewal. Data hosted in the EU. Interface in Italian

Who Is the Company Behind Ricordario?

  • Seller: Ricordario
  • HQ Location: Italy
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®
  • Ownership: Candox.it - Candox Informatica

Scadenzario

Scadenzario is a deadline management application designed for small businesses, professionals, administrative teams, and individuals who need a reliable way to track important dates, recurring obligations, and upcoming renewals. The platform helps users organize payments, invoices, contracts, insurance policies, document expiration dates, subscriptions, and other business or personal deadlines in one centralized workspace. Users can create one-time or recurring deadlines, configure multiple reminders, attach supporting documents, assign categories, track amounts, and monitor upcoming activities through intuitive calendar and list views. For businesses and teams, Scadenzario provides shared deadline management, allowing multiple members to collaborate, assign responsibilities, monitor completion status, and keep important information synchronized across devices. This helps organizations maintain visibility over recurring administrative tasks and reduce the risk of missed deadlines. Scadenzario is available on the web, iOS, and Android, providing access to synchronized information across supported devices. Its mobile applications also support unlimited local deadlines without requiring an account or an internet connection. The software offers a free plan and paid PRO features, including increased cloud synchronization limits, expanded collaboration capabilities, and advanced deadline management options. Business plans are also available for organizations managing larger volumes of deadlines. With its straightforward interface and focus on recurring obligations, Scadenzario provides a practical solution for companies and professionals who want to organize deadlines, coordinate responsibilities, and stay informed about upcoming commitments without the complexity of a full enterprise management system.

Who Is the Company Behind Scadenzario?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated March 6, 2025