# Twinkle Clock vs Lunea Observatory

The clearest difference is in-app purchases: Lunea Observatory at none against Twinkle Clock's 1. Twinkle Clock's advantage is ads (none vs shown) and device support (4 vs 2). On price and iOS requirement there is nothing between them.

Both are free to download. Twinkle Clock sells 1 one-off in-app purchase. Lunea Observatory asks for nothing beyond the download.

## The numbers

| Metric | Twinkle Clock | Lunea Observatory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Size | 23 MB | 79 MB |
| Requires iOS | **17.0** | 18.5 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyasu Hirai](https://appshunter.io/developer/455568461) | [Marlin Mack](https://appshunter.io/developer/1822862783) |

## What reviewers say

### Twinkle Clock

[App page](https://appshunter.io/ios/app/twinkle-clock/id6467501688)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Twinkle Clock Pro | $24.99 | one-time |


### Lunea Observatory

[App page](https://appshunter.io/ios/app/lunea-observatory/id6747781460)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Twinkle Clock free?

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

### Is Lunea Observatory free?

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

### Do Twinkle Clock or Lunea Observatory have ads?

Lunea Observatory shows ads; Twinkle Clock does not.

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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.*