Simple D vs DDays
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple D
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Hello, I'm happy to introduce a lightweight and easy-to-use D-Day app. * Countdowns Set the time for your D-Day and easily check the remaining or elapsed time. The time is calculated and displayed in multiple formats (months, weeks, days, hours, etc.). * Anniversaries Set anniversaries and check dates related to your D-Day. You can also use it like a date calculator. * Memos You can create memos related to your D-Days. The date and time are recorded with your memos. It is recommended when you want to keep tracking on your schedules, or keep the records of them. * Notifications Schedule notifications for your D-Days. You can schedule multiple reminders and write whatever message you'd like. You'll receive push notifications at your set times. Thank you. Developer Contact: kim.beeefriends@gmail.com
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 in-app purchases: DDays at none against Simple D's 1. DDays also leads on ads (none vs shown). Simple D's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence and device support 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. Simple D sells 1 one-off in-app purchase. DDays asks for nothing beyond the download.
Simple D ships an update every 3 weeks, DDays every 2 weeks. The most recent releases landed on August 13, 2026 and June 5, 2026 respectively.
| Parameter | Simple D | DDays |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 48 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | beeefriends | Lee Jaeho |
In-app purchases
Simple D
- Remove ads$6.99
DDays
No in-app purchases
