D vs D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
D
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It's new and easy way to check in. Just open this application while you are inside the working area, you can check in and out. And also you can view your own check in and out history by using this application everywhere.
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.
Screenshots
Verdict
The clearest difference is iOS requirement: D at 13.0 against D's 17.0. On price, update cadence, ads 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 2 months, D every 3 months. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.
| Parameter | D | D |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 29 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | PTT Group | Si-Wan Yoon |
In-app purchases
D
No in-app purchases
D
No in-app purchases
