ArcDay: Countdown Widget
D-Day, Streaks & Habits
Free · In-App Purchases · Designed for iPad. Not verified for macOS.
Track D-Day countdowns, streaks, habits, birthdays, projects, and life chapters with beautiful Time Arcs, notes, calendar, and widgets.
ArcDay is a countdown widget, habit tracker, D-Day calendar, and time progress app that turns important dates and routines into beautiful Time Arcs.
Track the days you wait for, the habits you keep, and the chapters you live through — all in one visual timeline.
Main features
• Countdown / D-Day
Count down to trips, birthdays, exams, anniversaries, concerts, launches, and important events.
• Habit Streaks / D+
Track routines like exercise, study, reading, no smoking, sobriety, daily goals, and personal challenges.
• Chapter Arc
Follow time periods with a start and end date, such as travel, projects, vacations, exam prep, or challenges.
• Progress Arc
See how today, this week, this month, and this year are moving with beautiful progress arcs.
• Check-ins & Notes
Add your mood, reason, and one-line notes to remember why each arc matters.
• Arc Calendar
View countdowns, streaks, notes, birthdays, milestones, and chapters by date.
• Home Screen Widgets
Keep your most important countdowns, habits, and chapters visible on your Home Screen.
ArcDay is made for people who want more than a simple countdown timer. It helps you see time, stay motivated, and keep meaningful dates close.
Use ArcDay to:
• Count down to important dates
• Build habit streaks
• Track D-Day events
• Follow personal chapters
• Record daily notes
• See progress at a glance
• Add beautiful widgets to your Home Screen
Turn your time into a beautiful arc.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Minor bug fixes and stability improvements
The developer, ChangHyun Nam, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Location
- Contact Info
- User Content
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- ChangHyun Nam
- Size
- 39.1 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Hindi, Japanese, Korean, Spanish
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- ArcDay Premium USD 0.99
- Memento Pro Monthly USD 19.99
- 메멘토 Pro (월간) USD 2.99
- Copyright
- © 2026 Memento