# One Day vs Countdown Time Days Until app

The clearest difference is ads: One Day at none against Countdown Time Days Until app's shown. One Day also leads on review sentiment (100% vs 86%) and iOS requirement (12.0 vs 16.6). Countdown Time Days Until app's advantage is update cadence (monthly vs every 12 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. One Day sells 1 one-off in-app purchase and Countdown Time Days Until app sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for One Day against 4.8 for Countdown Time Days Until app. Both are backed by a comparable volume of ratings — 91 and 113 respectively. Written reviews are what separate them: 100% of One Day's written reviews are positive against 86% of Countdown Time Days Until app's.

One Day ships an update every 12 months, Countdown Time Days Until app monthly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | One Day | Countdown Time Days Until app |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (91 ratings)](https://appshunter.io/ios/app/one-day-countdown/id1149322146/reviews) | **[4.8 (113 ratings)](https://appshunter.io/ios/app/countdown-time-days-until-app/id1441679859/reviews)** |
| Number of ratings | 91 | **113** |
| Positive reviews | **100.0% of reviews** | 85.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 32 MB | 69 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peter Johnson](https://appshunter.io/developer/397354116) | [Sociosoftware LLC (Apps)](https://appshunter.io/developer/1158895078) |

## What reviewers say

### One Day

[App page](https://appshunter.io/ios/app/one-day-countdown/id1149322146)

Easily track important upcoming events with customizable countdowns. Share your excitement with friends and family via social media or email. An iMessage app is also included for quick updates.

**Highlights:** Countdown to events, Repeat events weekly, monthly, yearly, Share to social media and email, iMessage app integration, Today page widget, Custom background images (paid), Track more events (paid)

**Features:** macOS Compatibility, iMessage stickers

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Multiple Events and Custom Images | $1.99 | one-time |


### Countdown Time Days Until app

[App page](https://appshunter.io/ios/app/countdown-time-days-until-app/id1441679859)

Track upcoming events with real-time accuracy and customizable widgets. Personalize your countdowns with beautiful backgrounds and themes. Share your excitement with friends and family.

**Highlights:** Track unlimited events, Customizable widget, Elegant design, Multiple themes and backgrounds, Daily notifications, Event sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Go Premium! | $1.99 | one-time |


## Frequently asked questions

### Is One Day free?

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

### Is Countdown Time Days Until app free?

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

### Which has better reviews, One Day or Countdown Time Days Until app?

Countdown Time Days Until app is rated higher. One Day averages 4.7 out of 5 from 91 ratings, while Countdown Time Days Until app averages 4.8 from 113 ratings.

### Do One Day or Countdown Time Days Until app have ads?

Countdown Time Days Until app shows ads; One Day does not.

### Which is updated more often, One Day or Countdown Time Days Until app?

One Day ships an update every 12 months, and Countdown Time Days Until app monthly. Most recently, One Day was updated on October 11, 2026 and Countdown Time Days Until app on October 9, 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.*