Best To Do Calendar Apps

250+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated October 2026

From beginner-friendly picks to power-user tools, our to do calendar list covers 250+ iPhone apps updated through October 2026. Compare ratings, prices, and screenshots in one place.

Compare top To Do Calendar Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Calendars: Schedule PlannerCalendars: Schedule PlannerFree4.7β˜… (123K)NoYesNov 2026
2Structured: Daily Planner TodoStructured: Daily Planner TodoFree4.8β˜… (168K)NoYesNov 2026
3TickTick:To-Do List & CalendarTickTick:To-Do List & CalendarFree4.9β˜… (47K)NoYesNov 2026
4To Do List - Dumb CalendarTo Do List - Dumb CalendarFreeβ€”NoNoAug 2026
5Todoist: To Do List & CalendarTodoist: To Do List & CalendarFree4.8β˜… (130K)NoYesNov 2026
6To do list: Smart Task PlannerTo do list: Smart Task PlannerFree5.0β˜… (25)YesYesNov 2026
724me: Calendar・Planner & To Do24me: Calendar・Planner & To DoFree4.5β˜… (6.8K)NoYesNov 2026
8To-do CalendarTo-do CalendarFreeβ€”YesYesOct 2026

Top Picks for To Do Calendar

Calendars: Schedule Planner#1

Calendars: Schedule Planner by Readdle Technologies Limited

2026 Daily Organizer・Reminder
Editor's Choice
πŸ“Š 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
  • πŸ‘ Easy to use and organize
  • 🎨 Helpful color-coding
  • πŸ“† Seamless integration with other calendars
  • πŸ—“οΈ Detailed monthly/weekly views
  • πŸ“ Useful task management features

Room to Improve

  • πŸ› Occasional glitches and data loss
  • πŸ’° Concerns over subscription model
  • πŸ•°οΈ Cumbersome date/time selection process
  • πŸ” Limited location search functionality
  • πŸ”„ Sync issues between devices
Structured: Daily Planner Todo#2

Structured: Daily Planner Todo by unorderly GmbH

Visual Calendar & Organizer
Strong Contender
πŸ“Š Productivity
4.8😊(168K ratings)
FreeIn-App Purchases
#77in 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

  • πŸš€ Highly organized and structured
  • 🎨 Customizable colors and icons
  • ⏱️ Visualizes time and task duration
  • πŸ—“οΈ Integrates with calendar and reminders
  • 🧠 Helpful for ADHD and neurodivergent users
  • πŸ’° Affordable one-time purchase
  • 🀝 Generous scholarship program
  • πŸ§‘β€πŸ’» Responsive and caring developer

Room to Improve

  • πŸ•°οΈ Tedious to change task times
  • πŸ”€ Difficulty rearranging tasks
  • πŸ” Lack of search for icons
  • πŸ“… Missing weekly/monthly view
  • ⏰ Notifications not customizable
  • πŸ€– Apple Watch app issues
  • πŸ’» Mac app crashes frequently
TickTick:To-Do List & Calendar#3

TickTick:To-Do List & Calendar by Appest Limited

Task remind, planner,countdown
Worth Considering
πŸ“Š Productivity
4.9😊(47K ratings)
FreeIn-App Purchases
TickTick:To-Do List & Calendar screenshot 1
TickTick:To-Do List & Calendar screenshot 2
TickTick:To-Do List & Calendar screenshot 3
TickTick:To-Do List & Calendar screenshot 4
TickTick:To-Do List & Calendar screenshot 5
TickTick:To-Do List & Calendar screenshot 6

Manage your tasks, schedule, and habits with this comprehensive productivity tool. It offers seamless syncing across devices, flexible organization, and collaboration features to help you stay on track and achieve your goals.

What We Love

  • πŸš€ Highly customizable
  • πŸ‘ Clean, intuitive interface
  • πŸ•° Excellent habit tracking
  • πŸ“… Seamless calendar integration
  • πŸ’‘ Versatile task management features
  • πŸ” Powerful search and organization tools
  • 🀝 Effective collaboration capabilities
  • 🎨 Visually appealing with theming options
  • πŸ’» Cross-platform availability

Room to Improve

  • πŸ› Occasional syncing issues
  • πŸ”’ Subscription required for full functionality
  • πŸ“ Limited formatting options in notes
  • πŸ•° Pomodoro timer could be more streamlined
  • πŸ—“ Calendar view could be more intuitive

More To Do Calendar apps to explore

FAQ about To Do Calendar

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

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