# Tynker Junior vs Synthesis24

The clearest difference is in-app purchases: Synthesis24 at none against Tynker Junior's 6. Tynker Junior's advantage is update cadence (every 2 months vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Tynker Junior sells 6 in-app purchases, starting at $4.99 per month. Synthesis24 asks for nothing beyond the download.

Tynker Junior ships an update every 2 months, Synthesis24 every 3 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Tynker Junior | Synthesis24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4.2K ratings)](https://appshunter.io/ios/app/tynker-junior-coding-for-kids/id1393933000/reviews)** | — |
| Number of ratings | **4.2K** | — |
| Positive reviews | 58.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 396 MB | 49 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tynker](https://appshunter.io/developer/805869470) | [杰超 杨](https://appshunter.io/developer/1364053114) |

## What reviewers say

### Tynker Junior

[App page](https://appshunter.io/ios/app/tynker-junior-coding-for-kids/id1393933000)

This app introduces children aged 4-7 to coding concepts through engaging, word-free picture blocks. It helps them develop problem-solving, logic, and critical thinking skills through interactive coding adventures. Designed for young learners, it makes learning to code fun and accessible.

**Highlights:** Word-free picture block coding, Problem-solving and logic development, Music and art creation, 200+ coding challenges, Tap-based interface, Voiceovers for guidance

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Monthly | $4.99 | per month |
| Tynker Jr. Web + Mobile Plan | $24.99 | per month |
| Individual Yearly | $49.99 | per year |
| Tynker Jr. Web + Mobile Plan | $59.99 | per 3 months |
| Tynker Jr. Web + Mobile Plan | $119.99 | per year |
| Tynker Jr. Web + Mobile Plan | $314.99 | one-time |

**What reviewers like**

- 👍 Fun and engaging for kids
- 💡 Good introduction to coding concepts
- 🚀 Easy to use interface

**What reviewers complain about**

- 🐛 Glitchy code and bugs
- 💰 Limited access without subscription
- 🤔 Misleading about subscription details

**Reported bugs**

- Levels/games not progressing properly
- Login and account issues
- Compatibility problems on certain devices

**Requested features**

- Add more advanced coding lessons
- Improve customer support and responsiveness
- Integrate with full Tynker app for seamless experience


### Synthesis24

[App page](https://appshunter.io/ios/app/synthesis24/id1606353407)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tynker Junior free?

Tynker Junior is free to download, with in-app purchases available.

### Is Synthesis24 free?

Synthesis24 is free to download, with no in-app purchases.

### Do Tynker Junior or Synthesis24 have ads?

Neither Tynker Junior nor Synthesis24 shows ads.

### Which is updated more often, Tynker Junior or Synthesis24?

Tynker Junior ships an update every 2 months, and Synthesis24 every 3 months. Most recently, Tynker Junior was updated on October 26, 2026 and Synthesis24 on October 25, 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.*