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Best Appointment Calendar Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated August 2026

Finding the right appointment calendar apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Appointment Calendar Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calendars: Schedule PlannerCalendars: Schedule PlannerFree4.7★ (121K)NoYesAug 2026
2Simple Calendar - SimpleCalSimple Calendar - SimpleCalFree4.7★ (16K)YesYesAug 2026
3Google Calendar: Get OrganizedGoogle Calendar: Get OrganizedFree4.5★ (131K)NoYesAug 2026
4Square Appointments: SchedulerSquare Appointments: SchedulerFree4.9★ (195K)NoNoAug 2026
5Simple Calendar: ToDo PlannerSimple Calendar: ToDo PlannerFree was $6.994.6★ (6.4K)YesYesAug 2026
6CalendarCalendarFree4.9★ (1.5M)NoNoAug 2026
7Calendar Widget & PlannerCalendar Widget & PlannerFree4.6★ (1.2K)YesYesAug 2026
8Calendar · Planner & RemindersCalendar · Planner & RemindersFree4.6★ (59K)YesYesAug 2026

Top Picks for Appointment Calendar

Calendars: Schedule Planner#1

Calendars: Schedule Planner by Readdle Technologies Limited

2026 Daily Organizer・Reminder
Editor's Choice
📊 Productivity
4.7😊(121K ratings)
FreeIn-App Purchases
#81in Productivity
Calendars: Schedule Planner screenshot 1
Calendars: Schedule Planner screenshot 2
Calendars: Schedule Planner screenshot 3
Calendars: Schedule Planner screenshot 4
Calendars: Schedule Planner screenshot 5
Calendars: Schedule Planner screenshot 6

This app combines a calendar, task manager, daily planner, and habit tracker. It helps users plan their day, build habits, boost productivity, and stay organized with seamless syncing across all Apple devices. Features include event creation, to-do list management, natural language input, and integration with popular meeting platforms.

What We Love

  • 🌟 Excellent calendar app
  • 👍 Easy to use and organize
  • 🎨 Helpful color-coding
  • 📆 Seamless integration with other calendars

Room to Improve

  • 🐛 Occasional glitches and data loss
  • 💰 Concerns over subscription model
  • 🕰️ Cumbersome date/time selection process
Simple Calendar - SimpleCal#2

Simple Calendar - SimpleCal by Yohei Fujikawa

Tasks & ToDo for your schedule
Strong Contender
📊 Productivity
4.7😊(16K ratings)
FreeAdsIn-App Purchases
Simple Calendar - SimpleCal screenshot 1
Simple Calendar - SimpleCal screenshot 2
Simple Calendar - SimpleCal screenshot 3
Simple Calendar - SimpleCal screenshot 4
Simple Calendar - SimpleCal screenshot 5
Simple Calendar - SimpleCal screenshot 6

This app offers a straightforward way to manage your schedule, sync events across devices using iCloud or Google Calendar, and stay organized with reminders and weather forecasts. Its customizable interface and simple design make adding and editing events quick and intuitive.

What We Love

  • 😍 Awesome!!
  • 👍 Easy to use
  • 👍 Well-organized
  • 🎨 Helpful color-coding

Room to Improve

  • 🐛 Deleted events/data loss
  • 🔒 Requires full access to Apple Calendar
  • 🗓️ Can't edit read-only events
Google Calendar: Get Organized#3

Google Calendar: Get Organized by Google LLC

Easily plan & schedule
Worth Considering
📊 Productivity
4.5😊(131K ratings)
FreeIn-App Purchases
#12in Productivity
Google Calendar: Get Organized screenshot 1
Google Calendar: Get Organized screenshot 2
Google Calendar: Get Organized screenshot 3
Google Calendar: Get Organized screenshot 4
Google Calendar: Get Organized screenshot 5
Google Calendar: Get Organized screenshot 6

This official app helps you manage your schedule and stay organized. It automatically adds events from Gmail, syncs across devices, and allows for shared calendars. You can also create tasks, customize views, and integrate with Google Meet for collaboration.

What We Love

  • 🚀 Keeps me organized
  • 🎨 Customizable colors
  • 📅 Integrates with email and other calendars
  • 🔔 Helpful reminders

Room to Improve

  • 🐛 Crashes and freezes
  • 🕰️ Slow loading times
  • 📆 Date on app icon doesn't change

More Appointment Calendar apps to explore

4
Square Appointments: Scheduler
Square Appointments: Scheduler
Square Appointments: Scheduler
Book, Schedule, Get Payments
Free

Manage your business with an all-in-one solution for booking, scheduling, and payments. Offer 24/7 online booking, send automated reminders, and process payments securely. Track client details and manage your team's calendars and reports.

24/7 online bookingAutomated appointment remindersSecure payment processing
💼 Business
(195K)
freemium
5
Simple Calendar: ToDo Planner
Simple Calendar: ToDo Planner
Simple Calendar: ToDo Planner
Schedule list & day organizer
Free
$6.99 | 100% OFF

This app offers a streamlined calendar experience with a focus on simplicity and ease of use. It allows for easy sharing of schedules, extensive customization options like font size and color-coding, and secure passcode locking. It's ideal for users seeking a functional, minimalist organizer.

Schedule sharing15 WidgetsAdjustable font size
📊 Productivity
(6.4K)
free with in-app purchases
6
Calendar
Calendar
Calendar
by Apple
Free

Organize your entire schedule in one place. View events from multiple accounts, manage tasks, and plan gatherings with others. Stay on top of appointments, holidays, and birthdays with customizable views and shared calendars.

Unified schedule viewEvent creation and editingTask management integration
📊 Productivity
(1.5M)
free
7
Calendar Widget & Planner
Calendar Widget & Planner
Calendar Widget & Planner
Diary: day week month year
Free

Organize your schedule with a comprehensive planner and diary. View your agenda on your home screen with customizable widgets, sync across multiple cloud services, and easily share events. Supports dark mode and AirPrint for convenient planning.

Calendar widgets for home screenDay, week, month, year plannersShare calendars and events
📊 Productivity
(1.2K)
free with in-app purchases
8
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Tasks, Agenda & To Do List AI
Free

This app offers a streamlined calendar experience with beautiful, intuitive views of your schedule. It unifies events and reminders, allows for quick natural language event entry, and provides contact history. It supports major calendar services and offers premium features through subscription.

Intuitive day and month viewsUnified events and remindersNatural language event entry
📊 Productivity
(59K)
free with in-app purchases
9
Schedulista: Online Scheduling
Schedulista: Online Scheduling
Schedulista: Online Scheduling
Appointment Scheduler
Free

This app allows businesses to offer 24/7 online appointment booking and scheduling. It sends automated text and email reminders to reduce no-shows and allows for managing staff and services. Clients can book from your website, social media, or email.

24/7 Online Appointment BookingAutomated Text/Email RemindersCustomizable Booking Page
💼 Business
(1.2K)
freemium
10
Acuity: Appointment Scheduler
Acuity: Appointment Scheduler
Acuity: Appointment Scheduler
Client scheduling & calendar
Free

Manage your calendar and clients with this app. It offers seamless client scheduling, appointment notifications, secure mobile payments, and automated receipts. Run your business on the go with tools for calendar and client management, plus payment processing.

Real-time calendar managementClient scheduling linksAppointment notifications
💼 Business
(30K)
free with in-app purchases
11
Aptly Appointment Manager
Aptly Appointment Manager
Aptly Appointment Manager
Smart Appointment Manger
Free
📊 Productivity
(0)
12
Planner Pro - Daily Planner
Planner Pro - Daily Planner
Planner Pro - Daily Planner
Reminders, Calendar & Tasks
Free

This app helps you manage your daily life by combining events, tasks, and notes in one place. It offers customizable settings for events, tasks with sub-tasks, notes with sketching and audio capabilities, and a focus timer. Organize your schedule with day, week, and month views, and search through all your records.

Event management with iOS calendar syncTask and project management with sub-tasksNotes with sketching and audio support
📊 Productivity
(13K)
free with in-app purchases
13
Agendo Week Calendar
Agendo Week Calendar
Agendo Week Calendar
Your weekly planner, your way
Free
📊 Productivity
(0)
14
TimeTree: Shared Calendar
TimeTree: Shared Calendar
TimeTree: Shared Calendar
Make a Shared Calendar
Free

This app allows users to create and share calendars with family, friends, or colleagues. It facilitates event planning, communication, and organization through shared schedules, photo albums, and to-do lists. Stay connected and manage your time effectively with this collaborative scheduling tool.

Shared calendars for groupsEvent notifications and remindersSync with device calendars
📊 Productivity
(90K)
free with in-app purchases
15
Go Appointment Reminders
Go Appointment Reminders
Go Appointment Reminders
Texts, Emails, and Scheduling
Free

Automate appointment reminders via SMS and email to reduce no-shows and increase revenue. Schedule appointments, manage confirmations, and sync with your existing calendars. This service helps businesses operate more efficiently and improve client loyalty.

Automated SMS and email remindersAppointment schedulingClient confirmation and rescheduling
💼 Business
(540)
paid
16
Calendar - 2026
Calendar - 2026
Calendar - 2026
2026 Calendar Planner,Reminder
Free

This daily planner and reminder app helps you organize tasks, meetings, and events with customizable views and notifications. It offers to-do lists, checklists, and the ability to add locations and notes to your schedule.

Daily to-do listsMultiple calendar views (day, week, month, year)Notification reminders
📊 Productivity
(7)
free with in-app purchases
17
Scheduler Pro - for patients
Scheduler Pro - for patients
Scheduler Pro - for patients
by Automatic Practice Profits, LLC
Free

Easily manage your medical appointments with this app. Connect to your clinic via QR code, schedule new visits, and view all your upcoming appointments in one convenient place. Take control of your healthcare scheduling anytime, anywhere.

Connect to clinic via QR codeSecure sign-inSchedule new appointments
🏥 Medical
(1)
free
18
Simple Calendar - Calendar
Simple Calendar - Calendar
Simple Calendar - Calendar
Daily Planner - To Do List
Free
📊 Productivity
(0)
19
Book-Me
Book-Me
Book-Me
Appointment booking system
Free
💼 Business
(0)
20
AI Calendar - Ajiu
AI Calendar - Ajiu
AI Calendar - Ajiu
Turn messages into schedules
Free

This AI-powered assistant transforms scheduling messages into organized plans. It intelligently identifies events, tasks, and changes from natural language, helping you review and manage your schedule before applying updates.

AI scheduling assistantMessage understanding for dates, times, peopleIdentifies events, tasks, and follow-ups
📊 Productivity
(3)
freemium

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FAQ about Appointment Calendar

What are the best appointment calendar apps for iPhone?
Calendars: Schedule Planner tops our appointment calendar apps ranking as of August 2026, with a 4.7-star average from 121K App Store ratings, and it's free to download.
Yes — 20 of the top appointment calendar apps we rank are free to download, including Calendars: Schedule Planner and Simple Calendar - SimpleCal.
Calendars: Schedule Planner has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ appointment calendar apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Calendars by Readdle is an all-in-one app that functions as a calendar, task manager, daily planner, and habit tracker. It is designed to help users organize their schedules, manage tasks, build routines, and improve overall productivity across their Apple devices.
Key features include viewing and managing your calendar with various views (daily, weekly, monthly), creating events and reminders, organizing to-do lists, adding items using natural language, tracking habits, and syncing across devices with services like Google Calendar and iCloud. It also integrates with meeting platforms like Zoom and Google Meet.

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