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Best Calder Apps

236+ iOS apps curated and reviewed

4.7 avg rating
17 free apps
Updated June 2026

Out of 236+ calder apps on iOS, 17 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Calder

Calendar#1

Calendar by Apple Inc.

Editor's Choice
📊 Productivity
4.9😐(1.5M ratings)
Free
Calendar screenshot 1
Calendar screenshot 2
Calendar screenshot 3
Calendar screenshot 4

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.

What We Love

  • 🚀 Essential app for staying organized
  • 👍 Clean, intuitive, and easy to navigate
  • 🔒 Seamless sync across devices
  • 👍 Helpful integration with other apps

Room to Improve

  • 🐛 Autofill suggestions overwrite event time
  • 🔍 Search function not reliable
  • 🔍 Inability to delete past/declined events
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
Countdown: Event Countdown#3

Countdown: Event Countdown by ROOT38 LIMITED

Countdown Calendar AI & Widget
Worth Considering
📊 Productivity
4.7😊(24K ratings)
FreeAdsIn-App Purchases
Countdown: Event Countdown screenshot 1
Countdown: Event Countdown screenshot 2
Countdown: Event Countdown screenshot 3
Countdown: Event Countdown screenshot 4
Countdown: Event Countdown screenshot 5
Countdown: Event Countdown screenshot 6

Easily track important dates and events with a beautifully designed countdown timer and calendar. Set unlimited countdowns, customize with icons and colors, and receive basic reminders. Share your upcoming events with friends and family.

What We Love

  • 👍 Easy to use
  • 🎨 Customizable colors and icons
  • 🕰️ Helpful for tracking upcoming events
  • 💻 Works well on multiple devices

Room to Improve

  • 🔒 Premium features locked behind paywall
  • 💸 Aggressive promotion of premium version
  • 🔔 Lack of customizable notifications

More Calder apps to explore

4
Google Calendar: Get Organized
Google Calendar: Get Organized
Google Calendar: Get Organized
Easily plan & schedule
Free

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.

Automatic event import from GmailCross-device synchronizationShared calendars for collaboration
📊 Productivity
(131K)
free with in-app purchases
5
Calendars: Schedule Planner
Calendars: Schedule Planner
Calendars: Schedule Planner
Reminder・Tasks Organizer・To Do
Free

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.

Calendar, task, and habit managementDaily, weekly, and monthly viewsNatural language event creation
📊 Productivity
(120K)
free with in-app purchases
6
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Calendar · Planner & Reminders
Planner Organizer & Agenda
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
7
Simple Calendar・Schedule app
Simple Calendar・Schedule app
Simple Calendar・Schedule app
simple and cool calendar app
Free

This app offers a streamlined calendar experience, focusing on essential features for easy event management. It's designed for users who prefer simplicity and a clean interface over complex functionalities. Get organized with core calendar tools and helpful notifications.

Calendar viewEvent creationSearch functionality
📊 Productivity
(1.9K)
ad-supported
8
Shared Family Calendar: FamCal
Shared Family Calendar: FamCal
Shared Family Calendar: FamCal
Share Schedules, Lists & Notes
Free

This app helps families stay organized by sharing schedules, tasks, lists, and notes in one central location. It allows for easy event management, collaborative list creation, and memo sharing to keep everyone connected and informed.

Shared family calendarTask assignment and listsFamily memos and notes
📊 Productivity
(27K)
free with in-app purchases
9
N Calendar - Planner & Agenda
N Calendar - Planner & Agenda
N Calendar - Planner & Agenda
Clear and Calm Calendar App
Free

A minimalist calendar app offering a simple, account-free planning experience. Customize with themes, adjust font sizes, and color-code events for clear organization. Secure your schedule with a passcode lock.

Account-free operation15 theme colors6 widget sizes
📊 Productivity
(100)
free with in-app purchases
10
hip: Birthday Reminder App
hip: Birthday Reminder App
hip: Birthday Reminder App
Event Countdown, Age & Widget
Free

Never forget important dates like birthdays and anniversaries again. This app helps you celebrate special occasions with customizable reminders, personalized greetings, and gift ideas. Manage your contacts and events with ease, ensuring you always send wishes on time.

Customizable event remindersContact and calendar syncBirthday and greeting cards
🔧 Utilities
(18K)
free with in-app purchases
11
FirstSeed Calendar
FirstSeed Calendar
FirstSeed Calendar
Calendars and widgets
Free

A powerful scheduling app that manages both events and reminders. It offers innovative calendar views, interactive widgets for various iOS versions, and seamless syncing with Apple's Calendar and Reminders apps. An optional paid upgrade unlocks advanced features like natural language event processing and drag-and-drop functionality.

Interactive and lock-screen widgetsFull-featured month, week, and list viewsEvent and reminder management
📊 Productivity
(324)
free with in-app purchases
12
WidgetCal-Calendar Widget
WidgetCal-Calendar Widget
WidgetCal-Calendar Widget
Check Schedules on LockScreen
Free

View your weekly or monthly schedule directly on your Lock Screen without unlocking your device. This app displays events and reminders with customizable layouts, offering quick access to your personal occasions. It also integrates with other powerful calendar applications.

Lock screen widget supportWeekly and monthly schedule viewsEvent and reminder display
📊 Productivity
(1.4K)
free with in-app purchases
13
TickTick:To-Do List & Calendar
TickTick:To-Do List & Calendar
TickTick:To-Do List & Calendar
Task remind, planner,countdown
Free

This app helps you manage tasks, schedule events, and build habits. It offers cross-device synchronization, multiple reminders, and collaboration features. Stay organized and boost productivity with its comprehensive planning tools.

Cross-device task synchronizationMultiple reminders and flexible schedulingCalendar views and integration
📊 Productivity
(44K)
freemium
14
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
15
One Calendar
One Calendar
One Calendar
All calendars in ONE place!
Free

Consolidate all your digital calendars into a single, easy-to-read view. Manage appointments, events, and birthdays from various providers like Google, Outlook, iCloud, and more, all within one application.

Integrates multiple calendar providersEasy-to-read overviewManage appointments and events
📊 Productivity
(20K)
free with in-app purchases
16
minical - Planner & Calendar
minical - Planner & Calendar
minical - Planner & Calendar
위젯 지원 및 공유 가능한 간단한 일정 플래너
Free

This app offers a minimalist and intuitive way to manage your schedule. View events at a glance with home and lock screen widgets, color-code them for easy distinction, and quickly edit them with smart suggestions. Stay organized with customizable notifications and cloud syncing.

Minimalist designHome & lock screen widgetsEvent color-coding
📊 Productivity
(5.5K)
free with in-app purchases
17
Tiny Calendar Pro
Tiny Calendar Pro
Tiny Calendar Pro
Calendar App: Planner & Tasks
$19.99

This intuitive calendar app integrates with all your existing calendars, offering powerful tools for event creation and management. It provides multiple viewing options and offline capabilities, ensuring you never miss an appointment.

Natural language event creationDrag and drop event editingSyncs with Google Calendar and iOS local calendars
📊 Productivity
(2.3K)
paid
18
Easy Calendar
Easy Calendar
Easy Calendar
by Tom van Zummeren
$1.99

This app offers a user-friendly weekly calendar experience, allowing for quick event creation and editing. It seamlessly syncs with your existing calendars and provides various views for planning and navigation. Enjoy customization options and helpful features like night mode.

Weekly calendar overviewSeamless native calendar integrationSyncs with iCloud, Outlook, Google Calendar
📊 Productivity
(2.6K)
subscription
19
Awesome Calendar
Awesome Calendar
Awesome Calendar
Keep Your Busy Life Organized
$9.99

Organize your personal and professional life with this comprehensive calendar and productivity tool. It syncs with existing calendars, manages to-do lists, allows photo-enhanced notes, and provides weather forecasts. Easily share schedules and collaborate on tasks.

Automatic calendar syncingTo-do list managementNotes with photo embedding
📊 Productivity
(3.9K)
free with in-app purchases
20
Structured: Daily Planner Todo
Structured: Daily Planner Todo
Structured: Daily Planner Todo
Calendar, Reminder & To Do
Free

Organize your day with a visual timeline that integrates your calendar, to-dos, routines, and habits. This app helps users feel calmer, focus faster, and accomplish more daily. It's ideal for work, study, travel, and managing ADHD, offering planning tools and focus timers.

Visual timeline for day and week organizationInbox for instant idea captureSub-tasks and notes for project breakdown
📊 Productivity
(162K)
freemium

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