# TreeOneOne vs The Dinosaur Encyclopedia

The clearest difference is in-app purchases: TreeOneOne at none against The Dinosaur Encyclopedia's 3. TreeOneOne also leads on update cadence (weekly vs every 6 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. The Dinosaur Encyclopedia sells 3 one-off in-app purchases. TreeOneOne asks for nothing beyond the download.

TreeOneOne ships an update weekly, The Dinosaur Encyclopedia every 6 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | TreeOneOne | The Dinosaur Encyclopedia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (24 ratings)](https://appshunter.io/ios/app/the-dinosaur-encyclopedia/id6752649754/reviews)** |
| Number of ratings | — | **24** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 167 MB |
| Requires iOS | 16.3 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jeremy Gordon](https://appshunter.io/developer/1589115034) | [philippe Bobis](https://appshunter.io/developer/426394336) |

## What reviewers say

### TreeOneOne

[App page](https://appshunter.io/ios/app/treeoneone/id6450873900)

**In-app purchases:** none


### The Dinosaur Encyclopedia

[App page](https://appshunter.io/ios/app/the-dinosaur-encyclopedia/id6752649754)

Explore prehistoric worlds with interactive quizzes and cinematic videos of over 100 dinosaurs and Ice Age animals. Learn facts, test your knowledge, and unlock new content through engaging gameplay designed for curious children.

**Highlights:** Discover 100+ dinosaurs and Ice Age animals, Over 200 cinematic videos, Interactive quiz questions, Spoken content in 10 languages, Adaptive difficulty, Easy mode for younger children

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pack 1 | $0.99 | one-time |
| Pack 2 | $1.99 | one-time |
| Full Pack | $4.99 | one-time |


## Frequently asked questions

### Is TreeOneOne free?

TreeOneOne is free to download, with no in-app purchases.

### Is The Dinosaur Encyclopedia free?

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

### Do TreeOneOne or The Dinosaur Encyclopedia have ads?

Neither TreeOneOne nor The Dinosaur Encyclopedia shows ads.

### Which is updated more often, TreeOneOne or The Dinosaur Encyclopedia?

TreeOneOne ships an update weekly, and The Dinosaur Encyclopedia every 6 weeks. Most recently, TreeOneOne was updated on October 14, 2026 and The Dinosaur Encyclopedia on October 7, 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.*