D vs DDays
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
Easily track important dates and countdown to special events. Calculate the days remaining until anniversaries, birthdays, or any significant milestone. Never forget a special occasion again with this simple event reminder.
- Countdown to anniversaries
- Track birthday countdowns
- Calculate days until events
- Remember special occasions
- Personal event tracking
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D-Day Counter Do you want to remember your anniversary is 100 days? Was this a few days you met your boyfriend? How much is left of your birthday? How many days are left for your anniversary? Met your lover and D + 200 Olympic D-100 Remember a couple apps anniversary of D-Day. Try App D-Day application.
DDays
Track important upcoming events with timely notifications. View countdowns directly on your home screen and lock screen widgets.
- D-day tracking
- Advance notifications
- Home screen widget
- Lock screen widget
- Live activity display
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Meet Simple D-day! You can check notifications and live-activity 24 hours in advance. Check D-Day through the Home screen, the lock screen widget!
Screenshots
Verdict
The clearest difference is review sentiment: DDays at 100% against D's 60%. DDays also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 4 months). D's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
D ships an update every 4 months, DDays every 2 weeks. The most recent releases landed on August 15, 2026 and June 5, 2026 respectively.
| Parameter | D | DDays |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 60.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | EONSOFT | Lee Jaeho |
Customer experience
D
DDays
In-app purchases
D
No in-app purchases
DDays
No in-app purchases
