Comparison

Dday Planner vs ArcDay

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Dday Planner

Features
Read full description

DDay Planner is a powerful all-in-one planning app that combines D-Day countdown, alarms, routines, timers, and schedules in one place. D-DAY COUNTDOWN - Track days remaining or days passed from important dates - Categories: Anniversary, General, Expiration Date - Repeat options: Once, Yearly, Monthly - Set reminders for D-7, D-3, D-1, and D-Day ALARM - 8 repeat types: Once, Daily, Weekdays, Weekends, Weekly, Specific Dates, Date Range, Monthly - Add up to 20 additional alarm times per alarm - Customizable snooze (1-60 min, up to 10 times) - Various alarm sounds + custom sound support SCHEDULE - Daily time-based task planning - 8 repeat types for flexible scheduling - Priority system for overlapping schedules - Set active period with start and end dates ROUTINE - Multi-step timer with customizable stages - Preset templates: Pomodoro, Workout, Quick timers - Background operation - works even when app is closed TIMER - Stopwatch - Lap and split time features - Basic timer HOME SCREEN WIDGETS - Display up to 6 items on your home screen - Support for D-Day, Timer, Schedule, and Alarm widgets - Real-time updates QUICK NOTES - Jot down quick notes on the day screen - Auto-save feature ADDITIONAL FEATURES - Calendar & text share - Dark mode support - Clean, modern interface Plan your life with DDay Planner!

About

ArcDay

Visualize your important dates, habits, and personal milestones as beautiful 'Time Arcs.' Track countdowns, maintain streaks, and reflect on your progress with daily check-ins and a calendar view. Customize your arcs with neon themes and see your time at a glance.

Highlights
  • Countdown to important dates
  • Track habit streaks
  • Visualize time periods as arcs
  • Daily check-ins and reflections
  • Arc calendar for reviewing past events
  • Home screen widgets
Features
Read full description

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/

Screenshots

Dday Planner4 screens
ArcDay4 screens

Verdict

The call

The clearest difference is in-app purchases: Dday Planner at none against ArcDay's 3. Dday Planner also leads on ads (none vs shown). ArcDay's advantage is update cadence (every 2 weeks vs every 4 months). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ArcDay sells 3 in-app purchases, starting at $2.99 per month. Dday Planner asks for nothing beyond the download.

UpkeepUpdate frequency

Dday Planner ships an update every 4 months, ArcDay every 2 weeks. The most recent releases landed on September 14, 2026 and June 10, 2026 respectively.

Scorecard3 real differences · 7 level
Dday Planner versus ArcDay: the parameters behind the verdict, then further details
ParameterDday PlannerArcDay
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.0
Further details — not scored
Size45 MB37 MB
Age rating4+4+
DeveloperbridgestepChangHyun Nam

In-app purchases

None

Dday Planner

No in-app purchases

3 purchases

ArcDay

Subscriptions2
  • 메멘토 Pro (월간)$2.991 Month
  • Memento Pro Monthly$19.991 Year
One-time1
  • ArcDay Premium$0.99

Questions

Is Dday Planner free?
Dday Planner is free to download, with no in-app purchases.
Is ArcDay free?
ArcDay is free to download, with in-app purchases available.
Do Dday Planner or ArcDay have ads?
ArcDay shows ads; Dday Planner does not.
Which is updated more often, Dday Planner or ArcDay?
Dday Planner ships an update every 4 months, and ArcDay every 2 weeks. Most recently, Dday Planner was updated on September 14, 2026 and ArcDay on June 10, 2026.

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