# Whale Encyclopedia vs Plotting on Cartesian Plane

The clearest difference is in-app purchases: Plotting on Cartesian Plane at none against Whale Encyclopedia's 3. Plotting on Cartesian Plane also leads on iOS requirement (12.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Whale Encyclopedia sells 3 in-app purchases, starting at $2.99 per month. Plotting on Cartesian Plane asks for nothing beyond the download.

## The numbers

| Metric | Whale Encyclopedia | Plotting on Cartesian Plane |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (20 ratings)](https://appshunter.io/ios/app/whale-encyclopedia/id1131302058/reviews)** | — |
| Number of ratings | **20** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Free | — |
| Size | 100 MB | 98 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Good Spider, LLC](https://appshunter.io/developer/1487595667) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Whale Encyclopedia

[App page](https://appshunter.io/ios/app/whale-encyclopedia/id1131302058)

Discover detailed articles and stunning HD photos of whales from A-Z. This offline encyclopedia offers a simple, engaging interface perfect for both children and adults interested in marine life. Earn badges for reading and explore at your own pace.

**Highlights:** A-Z whale topics, HD photos, Offline access, Badge collection system, Simple user interface, Suitable for all ages

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $19.99 | per year |
| Full Version | $9.99 | one-time |


### Plotting on Cartesian Plane

[App page](https://appshunter.io/ios/app/plotting-on-cartesian-plane/id6504434784)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Whale Encyclopedia free?

Whale Encyclopedia is free to download, with in-app purchases available.

### Is Plotting on Cartesian Plane free?

Plotting on Cartesian Plane is free to download, with no in-app purchases.

### Do Whale Encyclopedia or Plotting on Cartesian Plane have ads?

Neither Whale Encyclopedia nor Plotting on Cartesian Plane 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.*