Task Calendar - Todo & Planner

Content rating
Everyone
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Combine entertainment and productivity together through Task Calendar - Todo & Planner. Naoki Otsu designed this system just for you. Check Productivity for details.

How To Solve Common Problems Task Calendar - Todo & Planner

Task Calendar is a task management app that lets you write down and edit tasks right on your calendar.
It's packed with features such as task management on a monthly calendar, unlimited tabs, sorting, tasks without a date, notifications, dark mode support, and more.

■ Manage Tasks on a Monthly Calendar
Write tasks directly onto a monthly calendar, so you can see everything you need to do each month at a glance.

■ Unlimited Calendar Scrolling
Scroll vertically to instantly jump to any month, past or future.
No need for annoying buttons to move between months!

■ View All Calendars at Once
Combine every tab's calendar into a single, unified view.
No more switching back and forth between tabs!

■ Sorting
Freely reorder tasks by dragging, or sort them alphabetically and more.

■ Unlimited Tabs
Create as many calendars as you like for categories such as "Work," "Study," and "Personal."
There's no limit!

■ Powerful Search
Instantly find the task you need by filtering all your tasks by date range or keyword.

■ Tasks Without a Date
Create tasks that aren't tied to a specific date.
Perfect for tasks whose date hasn't been decided yet!

■ Notifications
Send yourself notifications at any time with any message you like, so you never forget a task.

■ Dark Mode
Choose your theme from Light Mode, Dark Mode, or automatic switching based on your device settings.

■ Custom Background Colors
Change the background color of each tab to any color you like.

■ Archive
Hide any calendars you don't want to see.

■ Biometric Authentication
Supports fingerprint and face authentication, keeping your important records safely protected.

■ Security
Your data is stored only on your device and is never sent to any third party.

■ No Login Required
Start using the app right away without any login.

■ Offline Support
Works even when you're not connected to the internet.

■ Privacy Policy
naokiotsu.com/privacy-policy

■ Contact
If you have any requests or questions, feel free to reach out through the in-app contact form or the email address below.
[email protected]
Manage tasks on a monthly calendar with unlimited tabs, reminders and dark mode
Updated on
Aug 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    about how developers declare sharing
  • No data collected
    about how developers declare collection
  • Data isn’t encrypted
  • You can request that data be deleted

What’s new

- The latest version includes new features, bug fixes, and performance improvements.

Thank you for always using our app.
We will continue to develop it with the valuable feedback from everyone.

If you have any requests or encounter any issues, please feel free to contact us through "Send Feedback" in the app settings or at [email protected].