Best Calender Reminder Apps

213+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated May 2026

Whether you're new to calender reminder or looking for an upgrade, our curated collection of 213+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Calender Reminder

Simple Calendar - SimpleCal#1

Simple Calendar - SimpleCal by Yohei Fujikawa

Tasks & ToDo for your schedule
Editor's Choice
📊 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
Calendars: Schedule Planner#2

Calendars: Schedule Planner by Readdle Technologies Limited

Reminder・Tasks Organizer・To Do
Strong Contender
📊 Productivity
4.7😊(120K ratings)
FreeAdsIn-App Purchases
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
Structured: Daily Planner Todo#3

Structured: Daily Planner Todo by unorderly GmbH

Calendar, Reminder & To Do
Worth Considering
📊 Productivity
4.8😊(162K ratings)
FreeIn-App Purchases
#96in Productivity
Structured: Daily Planner Todo screenshot 1
Structured: Daily Planner Todo screenshot 2
Structured: Daily Planner Todo screenshot 3
Structured: Daily Planner Todo screenshot 4
Structured: Daily Planner Todo screenshot 5
Structured: Daily Planner Todo screenshot 6

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.

What We Love

  • 🚀 Highly organized and structured
  • 🎨 Customizable colors and icons
  • ⏱️ Visualizes time and task duration
  • 🗓️ Integrates with calendar and reminders

Room to Improve

  • 🕰️ Tedious to change task times
  • 🔀 Difficulty rearranging tasks
  • 🔍 Lack of search for icons

More Calender Reminder apps to explore

4
Calendar
Calendar
Calendar
by Apple Inc.
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
5
Reminder & Countdown
Reminder & Countdown
Reminder & Countdown
Count down to your event
Free

Never miss an important event with this app. Set up custom reminders for everything from birthdays to holidays, with real-time countdowns and configurable alerts. Personalize your events with unique icons, backgrounds, and fonts, and easily share your countdowns with friends and family.

Real-time countdownsCustomizable alertsEvent personalization (icons, backgrounds, fonts)
📊 Productivity
(16K)
free with in-app purchases
6
Tiny Calendar: Planner & Tasks
Tiny Calendar: Planner & Tasks
Tiny Calendar: Planner & Tasks
Agenda, Organizer & Reminders
Free

This intuitive calendar app syncs with your existing calendars, offering powerful event creation and management tools. Access your schedule offline, set advanced reminders, and view your events in multiple formats on your iPhone, iPad, and Apple Watch.

Natural language input for event creationDrag and drop event editingSyncs with Google Calendar and iOS local calendars
📊 Productivity
(20K)
subscription
7
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
8
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
9
Reminder, Reminders with Voice
Reminder, Reminders with Voice
Reminder, Reminders with Voice
Alarm, Calendar, Remind Me App
Free

Create custom reminders with personalized sounds, including your own voice or music. Schedule recurring events, set wake-up alarms, and add images for easy identification. Manage all your reminders in a convenient calendar view.

Customizable voice and music notification soundsFlexible recurring reminder schedulingWake-up alarm functionality
📊 Productivity
(20K)
free with in-app purchases
10
To Do List MinimaList & Widget
To Do List MinimaList & Widget
To Do List MinimaList & Widget
Planner, Reminder & Tasks
Free

This app helps you organize your life with intuitive to-do lists, reminders, and a schedule planner. It offers customizable themes, shared lists, and widgets for easy task management. Stay productive with its focus timer and smart input features.

Intuitive and colored listsCustomizable themesShared lists
📊 Productivity
(44K)
free with in-app purchases
11
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
12
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
13
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
14
24me: Calendar・Planner & To Do
24me: Calendar・Planner & To Do
24me: Calendar・Planner & To Do
Reminders, Schedule, Organizer
Free

This app acts as a smart personal assistant, consolidating your calendar, to-do lists, notes, and personal accounts into one unified platform. It streamlines daily management with features like voice commands, smart reminders, and email-to-task conversion, helping you stay organized and productive.

Unified calendar and plannerSmart task manager and to-do listSimple notes and lists
📊 Productivity
(6.7K)
free with in-app purchases
15
Fantastical Calendar
Fantastical Calendar
Fantastical Calendar
Reminders & Todo List
Free

This powerful calendar and task management app offers intuitive natural language input for event creation, multiple calendar views, and robust task integration. It provides weather forecasts and advanced features like meeting polls and video conferencing integration for premium users.

Natural language event and task creationMultiple calendar views (day, week, month, year)Integrated task management (Todoist, Google Tasks)
📊 Productivity
(23K)
freemium
16
PocketLife Calendar
PocketLife Calendar
PocketLife Calendar
Calendar Organizer & Reminders
Free

Organize your life with a stylish and intuitive calendar app. It offers powerful customization, seamless syncing with popular services, and natural language event creation. Share events, set reminders, and personalize your calendar views.

Calendar sharing with friends and familyFast sync with Google, Outlook, iCal, Yahoo, iCloudCreate events using natural language
📊 Productivity
(41K)
free with in-app purchases
17
Reminders
Reminders
Reminders
Don’t forget. Use Reminders
Free

Easily manage your to-do lists for groceries, work projects, and more. Create reminders with voice commands, set location-based alerts, and collaborate with others. Keep everything organized and accessible across all your devices.

Voice-activated reminder creationLocation-based remindersSmart Lists for automatic organization
📊 Productivity
(813K)
free
18
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
19
RE.minder
RE.minder
RE.minder
by postmechanical, LLC
Free

This app helps you get things done on time with a focus on timely execution rather than just organization. It offers quick reminder setup, flexible options for delaying or repeating tasks, and enhanced note-taking capabilities. Additional features and customization are available through in-app purchases.

Quick reminder setup (3 taps)Delay or repeat remindersExtended notes entry and viewing
📊 Productivity
(756)
free with in-app purchases
20
Drink Water ∙ Daily Reminder
Drink Water ∙ Daily Reminder
Drink Water ∙ Daily Reminder
Daily Water Tracker & Reminder
Free

This application helps users track their daily water intake and provides timely reminders to ensure they meet their hydration goals. It features a calculator to determine personalized daily water needs based on weight and customizable notifications to prompt drinking throughout the day.

Personalized daily water intake calculatorCustomizable drinking remindersDaily statistics tracking
💪 Health & Fitness
(26K)
freemium

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