# Osmo Math Buzz vs Synthesis Math Tutor for Kids

The clearest difference is review sentiment: Synthesis Math Tutor for Kids at 85% against Osmo Math Buzz's 13%. Synthesis Math Tutor for Kids also leads on rating (4.6 vs 3.0) and ratings volume (10K vs 143). Osmo Math Buzz's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Osmo Math Buzz sells 2 one-off in-app purchases and Synthesis Math Tutor for Kids sells 5 in-app purchases, starting at $29.00 per month. Whichever you choose, the download price is not the number that matters.

Synthesis Math Tutor for Kids holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Synthesis Math Tutor for Kids has 10K ratings behind it against 143, so its average is the more settled of the two. Written reviews point the same way: 13% of Osmo Math Buzz's written reviews are positive against 85% of Synthesis Math Tutor for Kids's.

Osmo Math Buzz ships an update every 2 months, Synthesis Math Tutor for Kids monthly. The most recent releases landed on October 21, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Osmo Math Buzz | Synthesis Math Tutor for Kids |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (143 ratings)](https://appshunter.io/ios/app/osmo-math-buzz/id1504177111/reviews) | **[4.6 (10K ratings)](https://appshunter.io/ios/app/synthesis-math-tutor-for-kids/id6448335635/reviews)** |
| Number of ratings | 143 | **10K** |
| Positive reviews | 13.3% of reviews | **85.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 264 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 Math Buzz

[App page](https://appshunter.io/ios/app/osmo-math-buzz/id1504177111)

Engage in collaborative math practice with up to four players, solving equations to overcome challenges and collect rewards. Designed for children aged 6-10, this app transforms screen time into hands-on learning through interactive play.

**Highlights:** Team-based math practice, Addition, subtraction, multiplication, Collaborative play, Hands-on learning system, Ages 6-10, Tangible play with digital learning

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-day trial of Math Buzz | Free | one-time |
| Unlock Math Buzz | $24.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging gameplay
- 💡 Teaches numbers and strategy
- 🤝 Good for multiplayer
- 💰 Nice price (for some)
- 🧠 Challenges children

**What reviewers complain about**

- 🐛 Freezes on startup
- 🐛 App won't load
- 🐛 Crashes mid-game
- 🐛 Progress lost on crash
- 🐛 Unreliable login

**Reported bugs**

- App freezes on Osmo logo
- App does not load
- App crashes during gameplay
- Lost progress after crashes
- Login issues and purchase restoration problems

**Requested features**

- Fix the app loading issue
- Improve app stability
- Make the game more engaging
- Provide clearer instructions
- Ensure progress is saved


### 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 Math Buzz free?

Osmo Math Buzz is free to download, with in-app purchases available.

### 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 Math Buzz or Synthesis Math Tutor for Kids?

Synthesis Math Tutor for Kids is rated higher. Osmo Math Buzz averages 3.0 out of 5 from 143 ratings, while Synthesis Math Tutor for Kids averages 4.6 from 10K ratings.

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

Neither Osmo Math Buzz nor Synthesis Math Tutor for Kids shows ads.

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

Osmo Math Buzz ships an update every 2 months, and Synthesis Math Tutor for Kids monthly. Most recently, Osmo Math Buzz was updated on October 21, 2026 and Synthesis Math Tutor for Kids on October 20, 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.*