# EduSynth vs SJ

The clearest difference is price: EduSynth at Free against SJ's $0.49. EduSynth also leads on iOS requirement (17.0 vs 26.5). On ads, in-app purchases and device support there is nothing between them.

EduSynth is free to download; SJ costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | EduSynth | SJ |
| --- | --- | --- |
| Price | **Free** | $0.49 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/edusynth-educational-synth/id6758921153/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free | — |
| Size | 4 MB | 30 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Davide Fiorino](https://appshunter.io/developer/1082765618) | [Kouki Yoshimoto](https://appshunter.io/developer/1884780659) |

## What reviewers say

### EduSynth

[App page](https://appshunter.io/ios/app/edusynth-educational-synth/id6758921153)

Explore the world of subtractive synthesis with an interactive educational tool. Learn about oscillators, filters, and envelopes through hands-on experimentation and guided lessons. Connect MIDI controllers or use your keyboard to play and create sounds.

**Highlights:** Interactive subtractive synthesis engine, Three oscillators with multiple waveforms, Classic Moog-style ladder filter, Dual ADSR envelopes, Built-in learning modules, MIDI controller support

**In-app purchases:** none


### SJ

[App page](https://appshunter.io/ios/app/sj-square-synthesizer/id6797394418)

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

**In-app purchases:** none


## Frequently asked questions

### Is EduSynth free?

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

### Is SJ free?

SJ costs $0.49, with no in-app purchases.

### Do EduSynth or SJ have ads?

Neither EduSynth nor SJ shows ads.

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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.*