# D vs Timeflow

The clearest difference is in-app purchases: D at none against Timeflow's 1. D also leads on ads (none vs shown). Timeflow's advantage is update cadence (weekly vs every 5 weeks). On price, device support and iOS requirement there is nothing between them.

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

D ships an update every 5 weeks, Timeflow weekly. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | D | Timeflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/d-day-countdown/id1518400866/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 7 MB | 13 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Si-Wan Yoon](https://appshunter.io/developer/1493152910) | [CHANWOO KOO](https://appshunter.io/developer/1337053014) |

## What reviewers say

### D

[App page](https://appshunter.io/ios/app/d-day-countdown/id1518400866)

Easily set and track important dates, such as D-Day. This utility app helps you monitor the remaining time until your specified events.

**Highlights:** Set D-Day, Check remaining time, Event tracking, Simple interface

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases:** none


### Timeflow

[App page](https://appshunter.io/ios/app/timeflow-time-widgets/id6814408865)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Timeflow Pro Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is D free?

D is free to download, with no in-app purchases.

### Is Timeflow free?

Timeflow is free to download, with in-app purchases available.

### Do D or Timeflow have ads?

Timeflow shows ads; D does not.

### Which is updated more often, D or Timeflow?

D ships an update every 5 weeks, and Timeflow weekly. Most recently, D was updated on November 3, 2026 and Timeflow on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*