# Osmo Coding Duo vs EcoTarium Explorer

The clearest difference is rating: EcoTarium Explorer at 5.0 against Osmo Coding Duo's 3.9. EcoTarium Explorer also leads on monetization model (free vs free with in-app purchases). Osmo Coding Duo's advantage is ratings volume (145 vs 6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

EcoTarium Explorer holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Osmo Coding Duo has 145 ratings behind it against 6, so its average is the more settled of the two.

Osmo Coding Duo ships an update every 2 months, EcoTarium Explorer every 3 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Osmo Coding Duo | EcoTarium Explorer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (145 ratings)](https://appshunter.io/ios/app/osmo-coding-duo/id1294444077/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/ecotarium-explorer/id6478123975/reviews)** |
| Number of ratings | **145** | 6 |
| Positive reviews | 52.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 309 MB | 55 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [Worcester Natural History Society](https://appshunter.io/developer/1731890620) |

## 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


### EcoTarium Explorer

[App page](https://appshunter.io/ios/app/ecotarium-explorer/id6478123975)

This app offers a new navigation experience for outdoor exhibits, enhancing accessibility for visually-impaired guests. It guides visitors to various attractions within the EcoTarium, with ongoing development for future features.

**Highlights:** Outdoor exhibit navigation, Enhanced accessibility features, Visitor guidance, Feedback collection, Progressive feature development

**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 EcoTarium Explorer free?

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

### Which has better reviews, Osmo Coding Duo or EcoTarium Explorer?

EcoTarium Explorer is rated higher. Osmo Coding Duo averages 3.9 out of 5 from 145 ratings, while EcoTarium Explorer averages 5.0 from 6 ratings.

### Do Osmo Coding Duo or EcoTarium Explorer have ads?

Neither Osmo Coding Duo nor EcoTarium Explorer shows ads.

### Which is updated more often, Osmo Coding Duo or EcoTarium Explorer?

Osmo Coding Duo ships an update every 2 months, and EcoTarium Explorer every 3 months. Most recently, Osmo Coding Duo was updated on October 6, 2026 and EcoTarium Explorer on October 3, 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.*