# Solar System Clock vs Les Detroits

The clearest difference is price: Solar System Clock at Free against Les Detroits's $0.99. Solar System Clock also leads on update cadence (every 2 days vs fortnightly). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Solar System Clock is free to download; Les Detroits costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Solar System Clock ships an update every 2 days, Les Detroits fortnightly. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Solar System Clock | Les Detroits |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/solar-system-clock/id6746730661/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Free | — |
| Size | 5 MB | 7 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mateusz Andrzejczuk](https://appshunter.io/developer/1158375886) | [Michel Garlandat](https://appshunter.io/developer/1092759498) |

## What reviewers say

### Solar System Clock

[App page](https://appshunter.io/ios/app/solar-system-clock/id6746730661)

Visualize the current or historical positions of planets in our solar system. Explore future or past planetary alignments and identify optimal times for observing planets in the night sky.

**Highlights:** Real-time planet positions, Custom date selection, Past and future alignments, Optimal viewing time identification, Solar System visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### Les Detroits

[App page](https://appshunter.io/ios/app/les-detroits/id6762594201)

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

**In-app purchases:** none


## Frequently asked questions

### Is Solar System Clock free?

Solar System Clock is free to download, with no in-app purchases.

### Is Les Detroits free?

Les Detroits costs $0.99, with no in-app purchases.

### Do Solar System Clock or Les Detroits have ads?

Neither Solar System Clock nor Les Detroits shows ads.

### Which is updated more often, Solar System Clock or Les Detroits?

Solar System Clock ships an update every 2 days, and Les Detroits fortnightly. Most recently, Solar System Clock was updated on October 30, 2026 and Les Detroits on November 9, 2026.

---

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