D vs Instant D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
Easily set and track important dates, such as D-Day. This utility app helps you monitor the remaining time until your specified events.
- Set D-Day
- Check remaining time
- Event tracking
- Simple interface
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Set D-Day and check remain.
Instant D
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No more complex and heavy apps! "Instant D-Day" focuses only on the essential features, making it the easiest and fastest way in the world to track your special days. Keep your precious moments alive right on your home screen so you never forget D-days for couples, exams, baby milestones, and more. Key Features • Super Simple Setup: Add a D-day in just a few taps with a clean, intuitive, and clutter-free UI! • Rich Customization: Personalize your notes with 36 adorable icons, diverse colors, custom fonts, and adjustable border thicknesses. • Perfect Home Screen Widgets: Check everything at a glance whenever you turn on your phone. You can display multiple widgets, each tracking a different D-day. • Fast Quick-Edit: Tap a widget on your home screen to launch the app and jump straight to the edit screen for that specific D-day. • Full Dark Mode Support: Offers premium dark and light mode themes to keep your eyes comfortable, even at night. Start capturing your unforgettable moments right now with "Instant D-Day"!
Screenshots
Verdict
The clearest difference is ads: D at none against Instant D's shown. Instant D's advantage is update cadence (every 5 days vs every 3 months). On price, in-app purchases, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
D ships an update every 3 months, Instant D every 5 days. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.
| Parameter | D | Instant D |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 7 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Si-Wan Yoon | joonseo park |
In-app purchases
D
No in-app purchases
Instant D
No in-app purchases
