Sunlight Hours vs Solar System Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sunlight Hours
Read full descriptionHide full description
- This shows daylight hours in any latitude on any given day - You can also see some information about each planet in our solar system
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
Read full descriptionHide full description
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Solar System Clock at none against Sunlight Hours's 2. Solar System Clock also leads on ads (none vs shown). On price, update cadence, 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
Both are free to download. Sunlight Hours sells 2 one-off in-app purchases. Solar System Clock asks for nothing beyond the download.
Sunlight Hours ships an update every 3 days, Solar System Clock every 2 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.
| Parameter | Sunlight Hours | Solar System Clock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 16.6 | 16.6 |
| Further details — not scored | ||
| Size | 44 MB | 5 MB |
| Age rating | 17+ | 4+ |
| Developer | NovaNext | Mateusz Andrzejczuk |
In-app purchases
Sunlight Hours
- Coffee$0.99
- Remove Ads$0.99
Solar System Clock
No in-app purchases
Questions
Is Sunlight Hours free?
Is Solar System Clock free?
Do Sunlight Hours or Solar System Clock have ads?
Which is updated more often, Sunlight Hours or Solar System Clock?
Other comparisons
