Comparison

Countdown vs D

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

Head to head
About

Countdown

Features
Read full description

Count down the days to every big moment: birthdays, trips, weddings, holidays, exams and due dates. Countdown shows each event live, down to the second, and puts it on your home screen with a widget. Live countdowns Days, hours, minutes and seconds, ticking live. Switch any event between days, weeks and hours with a tap. Home-screen widgets Put any countdown on your home screen: one event per widget, small, medium or large, in three styles. Each widget works out the days by itself. On iPhone, widgets need iOS 17 or later; there are Lock Screen widgets too. Days since Count up from a date to follow anniversaries, streaks and milestones in days, weeks or hours. Reached milestones are ticked off. Your own style Choose a colour gradient, a photo from the background packs or one of your own photos. Each countdown gets its category and its occasion art. Reminders Get a reminder 30, 7, 3 or 1 day before, on the day itself and at milestones. Yearly events roll over to next year on their own. Three views Cards, a compact list or a timeline of what is coming. Favourites, 16 categories, search and sorting keep everything tidy. Share the countdown Make a share card as a story, a square or a card. Send it to friends or save the image. Holidays Add the public holidays of the next 12 months for the United States, the United Kingdom, Japan, Indonesia or India in one go. Full screen Show one big live countdown in full screen, or let the slideshow go through all your events. Countdown Pro Countdown Pro unlocks every background pack, every widget style and the slideshow. Private No account. Your countdowns stay on your phone, and a backup file keeps them safe, photos included. Also included โ€ข Dark mode โ€ข Phone and tablet layouts โ€ข 18 languages, chosen in Settings

About

D

Organize all your important dates, from exams and anniversaries to birthdays and deadlines. Track upcoming events with customizable countdowns and view them on your home screen or calendar. Stay motivated with progress tracking and enjoy a private, offline experience.

Highlights
  • Unlimited D-day creation
  • Customizable categories
  • Yearly repeating event support
  • Home screen widgets
  • Calendar view
  • Statistics and progress rings
  • Offline and private usage
Features
Read full description

Never miss a day that matters. D-day Counter keeps every countdown in your life โ€” exams, anniversaries, birthdays, deadlines โ€” organized in one clean app. โ–  Made for you ifโ€ฆ โ€ข You're a student counting down to a final exam, certification test, or interview โ€ข You want to celebrate your 100th or 1000th day together as a couple โ€ข You never want to forget a family member's or friend's birthday โ€” even one kept on the lunar calendar โ€ข You're tracking a project deadline, trip departure, or any big day ahead โ–  Key features 1. Unlimited D-days Create as many countdowns as you want โ€” no limits. Pick an emoji and add a memo to make each one yours. Count down to upcoming days (D-35) or count up from past events (D+82). 2. Reminders Get notified on the day, or 1, 2, 3, 7 or 30 days before โ€” at the time you choose. 3. Home screen widgets Check your D-days right from your home screen. Pick which D-day each widget shows; with a start date it shows a progress bar too. 4. Yearly repeating events Birthdays and anniversaries roll over automatically every year. Set it once and it always shows the next occurrence. 5. Lunar calendar dates Enter a date on the Korean lunar calendar and it repeats on that lunar date every year, with the solar date worked out for you. Leap months included. 6. Statistics Year progress, what's coming up, your next 100th or 1000th day, goals in progress and a by-month chart โ€” all on one screen. 7. Calendar view See all your D-days laid out on a monthly calendar. Instantly know what's coming up this month. 8. Categories Exam, Anniversary, Birthday, Military and Other โ€” rename them, change their icon and color, or create your own. 9. Progress ring Set a start date and watch the progress ring fill up as you approach your goal. 10. Backup & restore Export your D-days to a file and bring them back on a new phone. โ–  Light and private โ€ข No sign-up โ€” start using it the moment you install โ€ข All data stays on your device (nothing is sent to a server) โ€ข Works fully offline โ€ข Dark and light themes, English & Korean supported From exam countdowns to couple anniversaries and birthday reminders โ€” start counting the days that matter with D-day Counter.

Screenshots

Countdown4 screens
D4 screens

Verdict

The call

The clearest difference is in-app purchases: D at none against Countdown's 1. Countdown's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Countdown sells 1 one-off in-app purchase. D asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 6 level
Countdown versus D: the parameters behind the verdict, then further details
ParameterCountdownD
PriceFreeFree
Positive reviewsโ€”100.0% of reviews
Update frequencyEvery 2 monthsEvery 2 months
AdsNo โ€” betterYes
In-app purchasesYesNo โ€” better
Monetizationโ€”Ad-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details โ€” not scored
Size75 MB28 MB
Age rating4+4+
DeveloperGunawan SantosoSiU Ahn

In-app purchases

1 purchases

Countdown

One-time1
  • Countdown Pro$6.99
None

D

No in-app purchases

Questions

Is Countdown free?
Countdown is free to download, with in-app purchases available.
Is D free?
D is free to download, with no in-app purchases.
Do Countdown or D have ads?
D shows ads; Countdown does not.
Which is updated more often, Countdown or D?
Countdown ships an update every 2 months, and D every 2 months. Most recently, Countdown was updated on November 7, 2026 and D on October 31, 2026.

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