Solar System Clock vs Les Detroits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar System Clock
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.
- Real-time planet positions
- Custom date selection
- Past and future alignments
- Optimal viewing time identification
- Solar System visualization
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See the positions of all planets in our Solar System based on the current date. Or, you can set your own custom date to see the alignment of our planets from a future date or a past date. You can use this app to find out the best time to watch a planet in the sky by finding out when it will be closest to Earth.
Les Detroits
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From Gibraltar to Hormuz, from Malacca to the Bosphorus, and through the legendary Drake Passage, explore each strait in detail: location, width, length, depth, bordering countries and history. FEATURES: • 30 straits from around the world with complete profiles • Interactive world map — locate any strait with a tap • 20-question quiz to test your knowledge • Detailed cards: dimensions, countries, historical context • Fully bilingual French / English • Elegant interface optimised for iPhone Whether you love geography, navigation or maritime history, this app is your essential guide to the world's sea passages.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Solar System Clock | Les Detroits |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Mateusz Andrzejczuk | Michel Garlandat |
In-app purchases
Solar System Clock
No in-app purchases
Les Detroits
No in-app purchases
Questions
Is Solar System Clock free?
Is Les Detroits free?
Do Solar System Clock or Les Detroits have ads?
Which is updated more often, Solar System Clock or Les Detroits?
Other comparisons
