My Check Box

Contains adsIn-app purchases
Content rating
Everyone
1K+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
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About this app

Never miss a lunar birthday or a memorial day again.
Write a task on the calendar, check it off when it's done. That's all My Check Box is.
A warm, hand-drawn screen that makes your day feel like a paper diary.


■ Lunar dates, calculated correctly

Register a lunar date once and the app remembers it every year.

· Yearly lunar repeat — birthdays, memorial days, anniversaries
· Lunar dates corrected against Korea Astronomy and Space Science Institute (KASI) data
· Leap months and Lunar New Year land on the right day
· Show lunar dates on the calendar (can be turned off in settings)

Common lunar calculation methods drift from the Korean lunar calendar on certain days. My Check Box ships correction data to solve that.


■ One calendar for the whole day

· Tap a date and that day's checklist appears immediately
· Move unfinished tasks to today or tomorrow with a single tap
· Repeats — weekly, monthly, yearly, yearly (lunar)
· National holidays and substitute holidays shown on the calendar
· Reminders at the time you choose (on time, 5 min, 30 min, 1 hour, 1 day before, and more)
· Task count on the app icon badge


■ Home screen widgets — the small one is free

· Small widget: today's tasks (free)
· Medium widget: tasks with no date
· Large widget: this month's calendar with tasks and holidays
· Tap a widget to jump straight to that screen


■ Change phones, or share with an iPhone

· Google Drive backup and restore
· Automatic sync across your devices
· Exchange data with the iOS version — handy when family members use iPhones, or when you switch phones


■ The feel of a paper diary

· 7 handwriting fonts to choose from
· Warm, hand-drawn design
· Sort tasks into 8 color categories and filter by them


■ Light on your phone

About 14MB installed. Comfortable even on older devices.


■ Pro upgrade (optional)

Every core feature is available for free. Pro adds:
· No ads
· Medium and large widgets
· Unlimited categories


■ A good fit if you

· Track lunar birthdays and memorial days every year
· Don't want to miss anniversaries or D-days
· Find full calendar apps more complicated than you need
· Like the feel of a paper diary
· Want your calendar and your to-do list on one screen


My Check Box first launched on iOS in 2013 and has been used around the world since. Available in 15 languages.
Questions and suggestions are always welcome.
A fast, simple to-do app trusted by millions since 2013.
Updated on
Sep 1, 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.
  • This app may share these data types with third parties
    Location, Personal info, and Device or other IDs
  • This app may collect these data types
    Location, Personal info and 2 others
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

• Turn a tablet sideways and the calendar sits next to that day's to-dos. The list view shows two pages at once.
• Pro: on tablets in landscape, quick input splits in two — you can see what is already on the date you are entering.
• Fixed dates going blank in the Done & Past list.
• Fixed widgets sharing one name in the picker — now Today’s To-Dos, Today · Quick Add, No Date and Calendar.
Content rating
Everyone
In-App Purchases
Learn more

App support

About the developer
엔브로스
sehoon0224@gmail.com
대한민국 10891 경기도 파주시 교하로 100, 914동 1004호 (목동동,힐스테이트 운정)
+82 10-9211-6507

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