# Extinct Giants AR Book vs Dinosaur Guide.

The clearest difference is rating: Dinosaur Guide. at 5.0 against Extinct Giants AR Book's 1.0. Extinct Giants AR Book's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume, update cadence and device support there is nothing between them.

Both are free to download. Dinosaur Guide. sells 2 in-app purchases, starting at $1.99 per month. Extinct Giants AR Book asks for nothing beyond the download.

Dinosaur Guide. holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 14, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Extinct Giants AR Book | Dinosaur Guide. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/extinct-giants-ar-book/id1376554787/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dinosaur-guide/id6746718846/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 301 MB | 212 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Big Dream Service](https://appshunter.io/developer/1317537172) | [Olga Ivanova](https://appshunter.io/developer/1733570435) |

## What reviewers say

### Extinct Giants AR Book

[App page](https://appshunter.io/ios/app/extinct-giants-ar-book/id1376554787)

Explore extinct giant animals through augmented reality. Point your device at book pages to activate 3D animations and interact with creatures like T-Rex and mammoths. Learn about prehistoric life and take photos with these amazing creatures.

**Highlights:** Augmented reality animal animations, Interactive 3D models, Control animal actions (run, roar, fly), Take photos with animals, Learn about extinct giants

**Features:** macOS Compatibility

**In-app purchases:** none


### Dinosaur Guide.

[App page](https://appshunter.io/ios/app/dinosaur-guide/id6746718846)

Explore prehistoric species, fossil discoveries, and scientific classifications offline. This app offers structured profiles with details on size, diet, habitat, and geological periods. Includes learning tools like quizzes and a glossary for enthusiasts and students.

**Highlights:** Dinosaur profiles with classifications, Fossil discovery information, Geological time period details, Offline access, Quiz mode for knowledge testing, Search and category browsing, Favorite dinosaur saving

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| dinosaurs_subscription | $1.99 | per month |
| dinosaurs_by_oliva_donation | $1.99 | one-time |


## Frequently asked questions

### Is Extinct Giants AR Book free?

Extinct Giants AR Book is free to download, with no in-app purchases.

### Is Dinosaur Guide. free?

Dinosaur Guide. is free to download, with in-app purchases available.

### Which has better reviews, Extinct Giants AR Book or Dinosaur Guide.?

Dinosaur Guide. is rated higher. Extinct Giants AR Book averages 1.0 out of 5 from 1 ratings, while Dinosaur Guide. averages 5.0 from 1 ratings.

### Do Extinct Giants AR Book or Dinosaur Guide. have ads?

Dinosaur Guide. shows ads; Extinct Giants AR Book does not.

### Which is updated more often, Extinct Giants AR Book or Dinosaur Guide.?

Extinct Giants AR Book ships an update every 3 weeks, and Dinosaur Guide. every 3 weeks. Most recently, Extinct Giants AR Book was updated on October 14, 2026 and Dinosaur Guide. on October 15, 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.*