# Osmo Coding Duo vs Mass.Shift

The clearest difference is in-app purchases: Osmo Coding Duo at none against Mass.Shift's 2. Mass.Shift's advantage is iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Mass.Shift sells 2 in-app purchases, starting at $0.99 per month. Osmo Coding Duo asks for nothing beyond the download.

## The numbers

| Metric | Osmo Coding Duo | Mass.Shift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (145 ratings)](https://appshunter.io/ios/app/osmo-coding-duo/id1294444077/reviews)** | — |
| Number of ratings | **145** | — |
| Positive reviews | 52.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 309 MB | 70 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [ADAVII (PVT) LTD](https://appshunter.io/developer/1711708818) |

## 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


### Mass.Shift

[App page](https://appshunter.io/ios/app/massshift/id6757779133)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MassShift Monthly | $0.99 | per month |
| MassShift Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Osmo Coding Duo free?

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

### Is Mass.Shift free?

Mass.Shift is free to download, with in-app purchases available.

### Do Osmo Coding Duo or Mass.Shift have ads?

Neither Osmo Coding Duo nor Mass.Shift 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.*