# Osmo Coding Duo vs Thames & Kosmos Sidekick

The clearest difference is rating: Osmo Coding Duo at 3.9 against Thames & Kosmos Sidekick's 2.4. Osmo Coding Duo also leads on review sentiment (53% vs 13%) and ratings volume (145 vs 22). Thames & Kosmos Sidekick's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Osmo Coding Duo holds the better App Store score, 3.9 against 2.4. That said, the two scores are not equally well evidenced: Osmo Coding Duo has 145 ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 53% of Osmo Coding Duo's written reviews are positive against 13% of Thames & Kosmos Sidekick's.

## The numbers

| Metric | Osmo Coding Duo | Thames & Kosmos Sidekick |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (145 ratings)](https://appshunter.io/ios/app/osmo-coding-duo/id1294444077/reviews)** | [2.4 (22 ratings)](https://appshunter.io/ios/app/thames-and-kosmos-sidekick/id1611182142/reviews) |
| Number of ratings | **145** | 22 |
| Positive reviews | **52.6% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 309 MB | 8 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [Franckh-Kosmos Verlags-GmbH & Co. KG](https://appshunter.io/developer/375309682) |

## What reviewers say

### 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


### Thames & Kosmos Sidekick

[App page](https://appshunter.io/ios/app/thames-and-kosmos-sidekick/id1611182142)

Build and program a customizable robotic friend that transforms between a rover and a robot. Control its movements, sounds, and facial expressions, and learn coding through a visual interface or simulator. Explore robotics with interactive games and real-world examples.

**Highlights:** Build and code robotic pal, Transforms from rover to robot, Learn coding with block-based interface, Program movement, sounds, expressions, Remote control and programming modes, Includes maze game components

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

**In-app purchases:** none


## Frequently asked questions

### Is Osmo Coding Duo free?

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

### Is Thames & Kosmos Sidekick free?

Thames & Kosmos Sidekick is free to download, with no in-app purchases.

### Which has better reviews, Osmo Coding Duo or Thames & Kosmos Sidekick?

Osmo Coding Duo is rated higher. Osmo Coding Duo averages 3.9 out of 5 from 145 ratings, while Thames & Kosmos Sidekick averages 2.4 from 22 ratings.

### Do Osmo Coding Duo or Thames & Kosmos Sidekick have ads?

Neither Osmo Coding Duo nor Thames & Kosmos Sidekick 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.*