# Dinosaur Chess vs Osmo Coding Duo

The clearest difference is price: Osmo Coding Duo at Free against Dinosaur Chess's $4.99. Osmo Coding Duo also leads on update cadence (every 2 months vs every 16 months) and ratings volume (145 vs 38). Dinosaur Chess's advantage is chart position (#174 vs unranked) and iOS requirement (8.0 vs 15.0). On rating, review sentiment, ads and in-app purchases there is nothing between them.

Osmo Coding Duo is free to download; Dinosaur Chess costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.8 for Dinosaur Chess against 3.9 for Osmo Coding Duo. Both are backed by a comparable volume of ratings — 38 and 145 respectively. Written reviews are what separate them: 59% of Dinosaur Chess's written reviews are positive against 53% of Osmo Coding Duo's.

Dinosaur Chess ships an update every 16 months, Osmo Coding Duo every 2 months. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Dinosaur Chess | Osmo Coding Duo |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [3.8 (38 ratings)](https://appshunter.io/ios/app/dinosaur-chess-learn-to-play/id405842432/reviews) | **[3.9 (145 ratings)](https://appshunter.io/ios/app/osmo-coding-duo/id1294444077/reviews)** |
| Number of ratings | 38 | **145** |
| Positive reviews | **59.0% of reviews** | 52.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#174** | — |
| Size | 34 MB | 309 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Universis Technology](https://appshunter.io/developer/405842435) | [Tangible Play](https://appshunter.io/developer/799157444) |

## What reviewers say

### Dinosaur Chess

[App page](https://appshunter.io/ios/app/dinosaur-chess-learn-to-play/id405842432)

**Currently charting:** #174 Top Paid · Education (US App Store)

Learn and play chess with an engaging, non-intimidating approach. Features interactive lessons, mini-games, puzzles, and play against animated dinosaurs. Progress from beginner to advanced tactics.

**Highlights:** Interactive chess lessons, Mini games and puzzles, Play against animated dinosaurs, Chess tactics lessons, Progressive difficulty levels, Multi-student support

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great for learning chess
- 👍 Fun and engaging for kids
- 👍 Teaches basic moves and tactics
- 👍 Good for all ages
- 👍 Educational value

**What reviewers complain about**

- 😞 No audio/sound issues
- 😞 Glitchy and unreliable
- 😞 Crashing frequently
- 😞 Poor user interface
- 😞 Rigid learning pace

**Reported bugs**

- No audio/sound issues reported consistently over many years
- App crashes frequently, especially at the end of games
- Pieces disappear or change randomly
- Game freezes
- Cannot save progress

**Requested features**

- Provide developer contact information
- Add a two-player mode
- Allow skipping learning modules
- Separate profiles for multiple users
- Option to turn off music


### Osmo Coding Duo

[App page](https://appshunter.io/ios/app/osmo-coding-duo/id1294444077)

This app offers a collaborative coding adventure where two players team up to solve logic puzzles and rescue pets. It introduces real-world coding concepts through engaging challenges and a fun narrative.

**Highlights:** Multistep logic problems, Collaborative play for two, Coding concept introduction, Pet rescue adventure, Osmo character interaction

**In-app purchases:** none


## Frequently asked questions

### Is Dinosaur Chess free?

Dinosaur Chess costs $4.99, with no in-app purchases.

### Is Osmo Coding Duo free?

Osmo Coding Duo is free to download, with no in-app purchases.

### Which has better reviews, Dinosaur Chess or Osmo Coding Duo?

Osmo Coding Duo is rated higher. Dinosaur Chess averages 3.8 out of 5 from 38 ratings, while Osmo Coding Duo averages 3.9 from 145 ratings.

### Do Dinosaur Chess or Osmo Coding Duo have ads?

Neither Dinosaur Chess nor Osmo Coding Duo shows ads.

### Which is updated more often, Dinosaur Chess or Osmo Coding Duo?

Dinosaur Chess ships an update every 16 months, and Osmo Coding Duo every 2 months. Most recently, Dinosaur Chess was updated on September 26, 2026 and Osmo Coding Duo on September 25, 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.*