# Whale Encyclopedia vs COBIT Design & Implement Prep

The clearest difference is in-app purchases: COBIT Design & Implement Prep at none against Whale Encyclopedia's 3. Whale Encyclopedia's advantage is update cadence (fortnightly vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Whale Encyclopedia sells 3 in-app purchases, starting at $2.99 per month. COBIT Design & Implement Prep asks for nothing beyond the download.

Whale Encyclopedia ships an update fortnightly, COBIT Design & Implement Prep every 6 weeks. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Whale Encyclopedia | COBIT Design & Implement Prep |
| --- | --- | --- |
| 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** | Every 6 weeks |
| Monetization | Free | — |
| Size | 100 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Good Spider, LLC](https://appshunter.io/developer/1487595667) | [Davy Raitt](https://appshunter.io/developer/1795318281) |

## 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 |


### COBIT Design & Implement Prep

[App page](https://appshunter.io/ios/app/cobit-design-and-implement-prep/id6757922721)

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

**In-app purchases:** none


## Frequently asked questions

### Is Whale Encyclopedia free?

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

### Is COBIT Design & Implement Prep free?

COBIT Design & Implement Prep is free to download, with no in-app purchases.

### Do Whale Encyclopedia or COBIT Design & Implement Prep have ads?

Neither Whale Encyclopedia nor COBIT Design & Implement Prep shows ads.

### Which is updated more often, Whale Encyclopedia or COBIT Design & Implement Prep?

Whale Encyclopedia ships an update fortnightly, and COBIT Design & Implement Prep every 6 weeks. Most recently, Whale Encyclopedia was updated on November 2, 2026 and COBIT Design & Implement Prep on November 9, 2026.

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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.*