MapProjectionDemonstration vs EarthPi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MapProjectionDemonstration
Explore and understand various map projections with this educational tool. It visually demonstrates how spherical data is converted to flat maps, allowing customization of central latitude and longitude. Formulas for conversion are also provided.
- Illustrates map projections
- Categorizes projections (cylindrical, conic, azimuthal)
- Demonstrates 31 projection types
- Customizable central latitude and longitude
- Includes conversion formulas
- Visual conversion process
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Map Projection Demonstration This app illustrates a variety of possible map projections. Map projections fall into three general categories: cylindrical projections, conic projections, and azimuthal (or polar) projections. Each category contains several different types of projections. The app demonstrates the creation of maps in 31 different projections, and allows the user to choose the central latitude and longitude for each map. The formulas that are used to convert locations on the surface of a sphere to locations on a flat map are included. There is also a visual demonstration of the conversion process for each of the map types.
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
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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.
Screenshots
Verdict
The clearest difference is rating: EarthPi at 4.4 against MapProjectionDemonstration's 1.0. EarthPi also leads on ratings volume (14 vs 1) and iOS requirement (12.0 vs 16.4). MapProjectionDemonstration's advantage is in-app purchases (none vs 1). 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. MapProjectionDemonstration asks for nothing beyond the download.
EarthPi holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: EarthPi has 14 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | MapProjectionDemonstration | EarthPi |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.4 (14 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | 1 | 14 — better |
| Update frequency | — | Every 3 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 116 MB |
| Age rating | 4+ | 4+ |
| Developer | Geoffrey Domm | Othman Alzahrani |
Customer experience
MapProjectionDemonstration
EarthPi
In-app purchases
MapProjectionDemonstration
No in-app purchases
EarthPi
- EarthPi Premium$3.99
Questions
Is MapProjectionDemonstration free?
Is EarthPi free?
Which has better reviews, MapProjectionDemonstration or EarthPi?
Do MapProjectionDemonstration or EarthPi have ads?
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