# Countdown vs D

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

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Countdown | D |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | — | Ad-supported |
| Size | 75 MB | 28 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gunawan Santoso](https://appshunter.io/developer/1843786072) | [SiU Ahn](https://appshunter.io/developer/1601025745) |

## What reviewers say

### Countdown

[App page](https://appshunter.io/ios/app/countdown-days-until-event/id6762178578)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Countdown Pro | $6.99 | one-time |


### D

[App page](https://appshunter.io/ios/app/d-day-counter-countdowns/id6787755137)

Organize all your important dates, from exams and anniversaries to birthdays and deadlines. Track upcoming events with customizable countdowns and view them on your home screen or calendar. Stay motivated with progress tracking and enjoy a private, offline experience.

**Highlights:** Unlimited D-day creation, Customizable categories, Yearly repeating event support, Home screen widgets, Calendar view, Statistics and progress rings, Offline and private usage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Countdown free?

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

### Is D free?

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

### Do Countdown or D have ads?

D shows ads; Countdown does not.

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

Countdown ships an update every 2 months, and D every 2 months. Most recently, Countdown was updated on November 7, 2026 and D on October 31, 2026.

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