# Code Karts vs Synthesis Math Tutor for Kids

The clearest difference is price: Synthesis Math Tutor for Kids at Free against Code Karts's $4.99. Synthesis Math Tutor for Kids also leads on update cadence (monthly vs every 15 months) and review sentiment (77% vs 50%). Code Karts's advantage is in-app purchases (none vs 5) and rating (5.0 vs 4.6). On ads there is nothing between them.

Synthesis Math Tutor for Kids is free to download; Code Karts costs $4.99 up front. Synthesis Math Tutor for Kids sells 5 in-app purchases, starting at $29.00 per month. Code Karts asks for nothing beyond the download.

Code Karts holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Synthesis Math Tutor for Kids has 10K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 50% of Code Karts's written reviews are positive against 77% of Synthesis Math Tutor for Kids's, so the app with the better star average is not the one people write more warmly about.

Code Karts ships an update every 15 months, Synthesis Math Tutor for Kids monthly. The most recent releases landed on October 22, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Code Karts | Synthesis Math Tutor for Kids |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/code-karts-school-edition/id1314658831/reviews)** | [4.6 (10K ratings)](https://appshunter.io/ios/app/synthesis-math-tutor-for-kids/id6448335635/reviews) |
| Number of ratings | 2 | **10K** |
| Positive reviews | 50.0% of reviews | **76.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Monthly** |
| Monetization | Paid | **Freemium** |
| Size | 252 MB | 3 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [EDOKI ACADEMY](https://appshunter.io/developer/555989645) | [Synthesis](https://appshunter.io/developer/1684445188) |

## What reviewers say

### Code Karts

[App page](https://appshunter.io/ios/app/code-karts-school-edition/id1314658831)

This app introduces pre-coding concepts to young children through engaging racing puzzles. It teaches fundamental logic and problem-solving skills, preparing them for future coding endeavors with over 70 levels and two game modes.

**Highlights:** Logical puzzles presented as raceways, Teaches fundamentals of code while racing, Learn to count in binary, Over 70 levels, Two game modes: Classic and Competition, Intuitive UI for ages 4+

**Features:** macOS Compatibility

**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 Code Karts free?

Code Karts costs $4.99, 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, Code Karts or Synthesis Math Tutor for Kids?

Code Karts is rated higher. Code Karts averages 5.0 out of 5 from 2 ratings, while Synthesis Math Tutor for Kids averages 4.6 from 10K ratings.

### Do Code Karts or Synthesis Math Tutor for Kids have ads?

Neither Code Karts nor Synthesis Math Tutor for Kids shows ads.

### Which is updated more often, Code Karts or Synthesis Math Tutor for Kids?

Code Karts ships an update every 15 months, and Synthesis Math Tutor for Kids monthly. Most recently, Code Karts was updated on October 22, 2026 and Synthesis Math Tutor for Kids on October 30, 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.*