# Days' vs DaysUntilWhen

The clearest difference is in-app purchases: Days' at none against DaysUntilWhen's 1. Days' also leads on update cadence (every 4 days vs monthly) and iOS requirement (14.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. DaysUntilWhen sells 1 one-off in-app purchase. Days' asks for nothing beyond the download.

Days' ships an update every 4 days, DaysUntilWhen monthly. The most recent releases landed on June 4, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | Days' | DaysUntilWhen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/daysuntilwhen/id6472242936/reviews)** |
| Number of ratings | — | **5** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 17 MB | 9 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daiki Hirao](https://appshunter.io/developer/1480092196) | [Robert J Sarvis Jr](https://appshunter.io/developer/1531648349) |

## What reviewers say

### Days'

[App page](https://appshunter.io/ios/app/days/id1581602165)

**Features:** macOS Compatibility

**In-app purchases:** none


### DaysUntilWhen

[App page](https://appshunter.io/ios/app/daysuntilwhen/id6472242936)

Track the days remaining until important events with customizable home screen widgets. This app helps you visualize your countdowns for holidays and other significant dates, keeping you informed and excited.

**Highlights:** Customizable widgets, Holiday countdowns, Home screen display, Event tracking, User-requested features

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Holiday Alerts | $1.99 | one-time |


## Frequently asked questions

### Is Days' free?

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

### Is DaysUntilWhen free?

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

### Do Days' or DaysUntilWhen have ads?

Neither Days' nor DaysUntilWhen shows ads.

### Which is updated more often, Days' or DaysUntilWhen?

Days' ships an update every 4 days, and DaysUntilWhen monthly. Most recently, Days' was updated on June 4, 2026 and DaysUntilWhen on June 1, 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.*