# Osmo Coding Duo vs Synthesis Math Tutor for Kids

The clearest difference is rating: Synthesis Math Tutor for Kids at 4.6 against Osmo Coding Duo's 3.9. Synthesis Math Tutor for Kids also leads on review sentiment (77% vs 53%) and ratings volume (10K vs 145). Osmo Coding Duo's advantage is in-app purchases (none vs 5) and device support (3 vs 1). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Synthesis Math Tutor for Kids sells 5 in-app purchases, starting at $29.00 per month. Osmo Coding Duo asks for nothing beyond the download.

Synthesis Math Tutor for Kids holds the better App Store score, 4.6 against 3.9. That said, the two scores are not equally well evidenced: Synthesis Math Tutor for Kids has 10K ratings behind it against 145, 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 77% of Synthesis Math Tutor for Kids's.

Osmo Coding Duo ships an update every 2 months, Synthesis Math Tutor for Kids monthly. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Osmo Coding Duo | Synthesis Math Tutor for Kids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (145 ratings)](https://appshunter.io/ios/app/osmo-coding-duo/id1294444077/reviews) | **[4.6 (10K ratings)](https://appshunter.io/ios/app/synthesis-math-tutor-for-kids/id6448335635/reviews)** |
| Number of ratings | 145 | **10K** |
| Positive reviews | 52.6% of reviews | **76.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 309 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tangible Play](https://appshunter.io/developer/799157444) | [Synthesis](https://appshunter.io/developer/1684445188) |

## 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


### Synthesis Math Tutor for Kids

[App page](https://appshunter.io/ios/app/synthesis-math-tutor-for-kids/id6448335635)

An AI-powered math tutor offers personalized, adaptive lessons for children aged 5-11. It covers a range of topics with interactive guidance and engaging gameplay, helping to build confidence and critical thinking skills.

**Highlights:** AI-powered adaptive lessons, Interactive digital tutor, Multi-sensory learning with digital manipulatives, Progress tracking for accuracy and speed, Engaging gameplay for math practice, Adaptive flashcards

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synthesis Tutor Family Monthly | $29.00 | per month |
| Synthesis Tutor Family Monthly | $29.00 | per month |
| Synthesis Tutor Annual Family | $119.00 | per year |
| Synthesis Tutor Annual Family | $119.00 | per year |
| Synthesis Tutor Annual Monthly | $294.99 | per year |


## Frequently asked questions

### Is Osmo Coding Duo free?

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

### Is Synthesis Math Tutor for Kids free?

Synthesis Math Tutor for Kids is free to download, with in-app purchases available.

### Which has better reviews, Osmo Coding Duo or Synthesis Math Tutor for Kids?

Synthesis Math Tutor for Kids is rated higher. Osmo Coding Duo averages 3.9 out of 5 from 145 ratings, while Synthesis Math Tutor for Kids averages 4.6 from 10K ratings.

### Do Osmo Coding Duo or Synthesis Math Tutor for Kids have ads?

Neither Osmo Coding Duo nor Synthesis Math Tutor for Kids shows ads.

### Which is updated more often, Osmo Coding Duo or Synthesis Math Tutor for Kids?

Osmo Coding Duo ships an update every 2 months, and Synthesis Math Tutor for Kids monthly. Most recently, Osmo Coding Duo was updated on October 24, 2026 and Synthesis Math Tutor for Kids on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*