# MapProjectionDemonstration vs EarthPi

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.

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.

## The numbers

| Metric | MapProjectionDemonstration | EarthPi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/mapprojectiondemonstration/id6448708606/reviews) | **[4.4 (14 ratings)](https://appshunter.io/ios/app/earthpi/id6741358020/reviews)** |
| Number of ratings | 1 | **14** |
| Positive reviews | — | 66.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 116 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [Othman Alzahrani](https://appshunter.io/developer/1664580679) |

## What reviewers say

### MapProjectionDemonstration

[App page](https://appshunter.io/ios/app/mapprojectiondemonstration/id6448708606)

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

**In-app purchases:** none


### EarthPi

[App page](https://appshunter.io/ios/app/earthpi/id6741358020)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EarthPi Premium | $3.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*