# Synthesis24 vs HY Academy

The clearest difference is update cadence: HY Academy at every 2 days against Synthesis24's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Synthesis24 ships an update every 3 months, HY Academy every 2 days. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Synthesis24 | HY Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Size | 49 MB | 45 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [杰超 杨](https://appshunter.io/developer/1364053114) | [HY Global Academy Inc.](https://appshunter.io/developer/1749681392) |

## What reviewers say

### Synthesis24

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

**Features:** macOS Compatibility

**In-app purchases:** none


### HY Academy

[App page](https://appshunter.io/ios/app/hy-academy/id6785727921)

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

**In-app purchases:** none


## Frequently asked questions

### Is Synthesis24 free?

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

### Is HY Academy free?

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

### Do Synthesis24 or HY Academy have ads?

Neither Synthesis24 nor HY Academy shows ads.

### Which is updated more often, Synthesis24 or HY Academy?

Synthesis24 ships an update every 3 months, and HY Academy every 2 days. Most recently, Synthesis24 was updated on October 9, 2026 and HY Academy on October 15, 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.*