# when vs One Light Day

The clearest difference is in-app purchases: when at none against One Light Day's 4. when also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). On price and ads there is nothing between them.

Both are free to download. One Light Day sells 4 one-off in-app purchases. when asks for nothing beyond the download.

## The numbers

| Metric | when | One Light Day |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 30 MB | 15 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hiroe Oshimura](https://appshunter.io/developer/1592216886) | [Jean Marc Moro](https://appshunter.io/developer/1896481117) |

## What reviewers say

### when

[App page](https://appshunter.io/ios/app/when-where-what-database/id6502634868)

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

**In-app purchases:** none


### One Light Day

[App page](https://appshunter.io/ios/app/one-light-day/id6797285165)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Signal | $0.99 | one-time |
| Bright Signal | $1.99 | one-time |
| Farther Signal | $2.99 | one-time |
| One Light Day | $4.99 | one-time |


## Frequently asked questions

### Is when free?

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

### Is One Light Day free?

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

### Do when or One Light Day have ads?

Neither when nor One Light Day shows ads.

---

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