Best To Do List, Calendar Organizer Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated November 2026

Calendars is the household name in to do list, calendar organizer, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top To Do List, Calendar Organizer Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calendars: Schedule PlannerCalendars: Schedule PlannerFree4.7★ (123K)NoYesNov 2026
2Do! – Simple To Do ListDo! – Simple To Do ListFree4.7★ (26K)YesYesNov 2026
3Calendar All-In-One PlannerCalendar All-In-One PlannerFree4.3★ (96)YesYesOct 2026
4TickTick:To-Do List & CalendarTickTick:To-Do List & CalendarFree4.9★ (47K)NoYesNov 2026
5Structured: Daily Planner TodoStructured: Daily Planner TodoFree4.8★ (169K)NoYesNov 2026
6Daily Planner, To-Do ListDaily Planner, To-Do ListFree4.8★ (12K)NoYesNov 2026
7Google Calendar: Get OrganizedGoogle Calendar: Get OrganizedFree4.5★ (133K)NoYesNov 2026
8Calendar · Planner & RemindersCalendar · Planner & RemindersFree4.6★ (59K)YesYesNov 2026

Top Picks for To Do List, Calendar Organizer

Calendars: Schedule Planner#1

Calendars: Schedule Planner by Readdle Technologies Limited

2026 Daily Organizer・Reminder
Editor's Choice
📊 Productivity
4.7😊(123K ratings)
FreeIn-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 calendar, task management, and habit tracking to boost productivity and organization. It offers seamless syncing across Apple devices and integrates with popular services like Google Calendar. Plan your day, manage tasks, and build routines with customizable views and features.

What We Love

  • 🌟 Excellent calendar app
  • 👍 Easy to use and organize
  • 🎨 Helpful color-coding
  • 📆 Seamless integration with other calendars
  • 🗓️ Detailed monthly/weekly views
  • 📝 Useful task management features

Room to Improve

  • 🐛 Occasional glitches and data loss
  • 💰 Concerns over subscription model
  • 🕰️ Cumbersome date/time selection process
  • 🔍 Limited location search functionality
  • 🔄 Sync issues between devices
Do! – Simple To Do List#2

Do! – Simple To Do List by SIMPLERION Co., Ltd

Reminders & widgets, your way
Strong Contender
📊 Productivity
4.7😊(26K ratings)
FreeAdsIn-App Purchases
Do! – Simple To Do List screenshot 1
Do! – Simple To Do List screenshot 2
Do! – Simple To Do List screenshot 3
Do! – Simple To Do List screenshot 4
Do! – Simple To Do List screenshot 5
Do! – Simple To Do List screenshot 6

This app helps you manage your daily tasks with a focus on simplicity and ease of use. Quickly add and complete tasks, set reminders, and automate recurring items. Securely store your data and personalize the experience with themes and fonts.

What We Love

  • 🚀 Great to-do list app
  • 👍 Easy to use and organize
  • ✨ Customizable with colors and fonts
  • 📆 Helpful for managing daily tasks and routines
  • 🔔 Useful reminders and notifications
  • 💻 Convenient widget for quick access

Room to Improve

  • 🐛 Recurring tasks not always showing up correctly
  • 🔀 Randomly shuffles tasks
  • 💰 Ads still showing up after paid upgrade
  • 🔍 Limited search and filtering options
  • 🎨 Lack of customization options for themes and backgrounds
Calendar All-In-One Planner#3

Calendar All-In-One Planner by Maple Media Apps, LLC

Sync Agenda Tasks & Reminders
Worth Considering
📊 Productivity
4.3(96 ratings)
FreeAdsIn-App Purchases
Calendar All-In-One Planner screenshot 1
Calendar All-In-One Planner screenshot 2
Calendar All-In-One Planner screenshot 3
Calendar All-In-One Planner screenshot 4

Enhance your standard mobile calendar with advanced features for better organization. This app offers a clear overview, powerful reminder functions, and easy event management. Customize your schedule with color-coding, templates, and support for various calendar services.

More To Do List, Calendar Organizer apps to explore

FAQ about To Do List, Calendar Organizer

What are the best to do list, calendar organizer apps for iPhone?
Calendars: Schedule Planner tops our to do list, calendar organizer apps ranking as of November 2026, with a 4.7-star average from 123K App Store ratings, and it's free to download.
Yes — 20 of the top to do list, calendar organizer apps we rank are free to download, including Calendars: Schedule Planner and Do! – Simple To Do List.
Calendars: Schedule Planner has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ to do list, calendar organizer apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.