Comparison

MapProjectionDemonstration vs EarthPi

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Illustrates map projections
  • Categorizes projections (cylindrical, conic, azimuthal)
  • Demonstrates 31 projection types
  • Customizable central latitude and longitude
  • Includes conversion formulas
  • Visual conversion process
Read full description

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.

About

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.

Highlights
  • 27 Earth projections
  • Smooth projection transitions
  • Time control for sunlight simulation
  • Celestial tracking (sun and moon)
  • Screenshot functionality
Features
Read 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.

Screenshots

MapProjectionDemonstration4 screens
EarthPi4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. EarthPi sells 1 one-off in-app purchase. MapProjectionDemonstration asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard5 real differences · 5 level
MapProjectionDemonstration versus EarthPi: the parameters behind the verdict, then further details
ParameterMapProjectionDemonstrationEarthPi
PriceFreeFree
Rating1.0 (1 ratings)4.4 (14 ratings) — better
Positive reviews—66.7% of reviews
Number of ratings114 — better
Update frequency—Every 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.412.0 — better
Further details — not scored
Size9 MB116 MB
Age rating4+4+
DeveloperGeoffrey DommOthman Alzahrani

Customer experience

MapProjectionDemonstration

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

EarthPi

All ratings14 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

MapProjectionDemonstration

No in-app purchases

1 purchases

EarthPi

One-time1
  • EarthPi Premium$3.99

Questions

Is MapProjectionDemonstration free?
MapProjectionDemonstration is free to download, with no in-app purchases.
Is EarthPi free?
EarthPi is free to download, with in-app purchases available.
Which has better reviews, MapProjectionDemonstration or EarthPi?
EarthPi is rated higher. MapProjectionDemonstration averages 1.0 out of 5 from 1 ratings, while EarthPi averages 4.4 from 14 ratings.
Do MapProjectionDemonstration or EarthPi have ads?
Neither MapProjectionDemonstration nor EarthPi shows ads.

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