EarthPi vs Solar System Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EarthPi
Explore Earth with 27 interactive map projections. Visualize the planet from different angles, adjust time to see sunlight, and track celestial bodies. Save your discoveries with screenshot functionality.
- 27 Earth projections
- Smooth projection transitions
- Time control for sunlight simulation
- Celestial tracking (sun and moon)
- Screenshot functionality
Read full descriptionHide full description
EarthPi is a unique app designed to provide users with a detailed and interactive way to explore Earth through various map projections. With 27 distinct Earth projections, the app allows users to study and visualize the planet from multiple perspectives. Key Features: - 27 Earth Projections: Choose from a variety of Earth's map projections. - Smooth Projection Transitions: Switch between projections seamlessly with fluid animations and learn how each map projection works. - Time Control: Adjust the time to observe the dynamic interaction of sunlight with Earth’s surface across all projections. - Celestial Tracking: View the real-time positions of the sun and moon based on the selected time. - Screenshot Functionality: Capture and save images of any map projection. Future Development: The developer is dedicated to expanding EarthPi’s capabilities, with plans to introduce additional projections, features, and improvements.
Solar System Clock
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 EarthPi's 1. Solar System Clock also leads on update cadence (every 2 days vs every 3 months). EarthPi's advantage is iOS requirement (12.0 vs 16.6). On price, ads and device support 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. EarthPi sells 1 one-off in-app purchase. Solar System Clock asks for nothing beyond the download.
EarthPi ships an update every 3 months, Solar System Clock every 2 days. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | EarthPi | Solar System Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (14 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 116 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Othman Alzahrani | Mateusz Andrzejczuk |
In-app purchases
EarthPi
- EarthPi Premium$3.99
Solar System Clock
No in-app purchases
Questions
Is EarthPi free?
Is Solar System Clock free?
Do EarthPi or Solar System Clock have ads?
Which is updated more often, EarthPi or Solar System Clock?
Other comparisons
