# DX-SQUARE - Classic FM synthe — Play and Shape 80s FM Sounds

> 80s FM synthesizer app with tactile UI, curated presets, and effects. (iPhone/iPad app by Kouki Yoshimoto.)

- Source: https://appshunter.io/ios/app/dx-square-classic-fm-synthe/id6791068356 (this page in markdown: same URL + `.md`)
- Developer: [Kouki Yoshimoto](https://appshunter.io/developer/1884780659)
- Category: Music
- Price: Free
- Rating: 3.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.5 · 86 MB
- Languages: American English
- Released: 2026-07-17
- Data updated: 2026-09-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/dx-square-classic-fm-synthe/id6791068356/reviews.md

## What is DX?

◆ Key Features

Tactile Hardware-Style UI: Interactive visual feedback for operators, envelopes, and algorithms.

Curated Presets: Essential sounds including E. PIANO, SYNTH BASS, and BRASS.

Kaoss Physics-style Filter Pad: Smooth X/Y control over Cutoff and Resonance.

Essential FX: PITCH/MOD, and spatial effects including CHORUS, DELAY, and REVERB.

Comfortable Playability: Sleek mini-keyboard with adjustable key range.

Dual-Language Support: Fully localized in English and Japanese.

Perfect as a secondary sound source for music production, or for sound design on the go. Experience the iconic digital synth sounds of yesteryear right now on your iPhone.

Note: This app is a sample-based vintage synthesizer (not a real-time 6-operator FM synthesis engine).
We recommend playing this app on an actual physical device (not via simulator).

## Key features

- Hardware-style UI
- Curated presets
- Kaoss Physics-style filter pad
- Essential FX (Chorus, Delay, Reverb)
- Mini-keyboard
- Dual-language support

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/dx-square-classic-fm-synthe/id6791068356/reviews.md

### 3/5 — add AuV3

*2026-08-07*

cool suite of apps and tools, nice to see the ads have been removed in the newer apps. just add AuV3 support now and these will be good.

## Frequently asked questions about DX

### What kind of synthesizer is DX-SQUARE?

DX-SQUARE is a sample-based vintage synthesizer designed to emulate the iconic digital synth sounds of the 80s. It is not a real-time 6-operator FM synthesis engine.

### Does DX-SQUARE have ads?

No, DX-SQUARE does not contain advertisements.

### What devices does DX-SQUARE support?

DX-SQUARE is available for iPhone and iPad.

### What is the age rating for DX-SQUARE?

DX-SQUARE has an age rating of 4+.

### How often is DX-SQUARE updated?

The latest version, 1.1.1, was released on August 2, 2026, indicating recent updates. The app was initially released on July 17, 2026.

### What languages does DX-SQUARE support?

DX-SQUARE offers dual-language support, being fully localized in both English and Japanese.

### What are the key features of DX-SQUARE?

Key features include a tactile hardware-style UI, curated presets like E. PIANO and SYNTH BASS, a Kaoss Physics-style filter pad, essential FX (Chorus, Delay, Reverb), and a mini-keyboard.

### What is the user rating for DX-SQUARE?

DX-SQUARE has a rating of 3.0 stars from 1 rating.

## Version history (last 3 releases)

### 1.1.1 — 2026-08-02

Minor bug fixes

### 1.1 — 2026-07-20

・Fixed issues with ad display
・Improved performance stability

### 1.0 — 2026-07-17

No release notes.

## More apps by Kouki Yoshimoto

- [WindInstrumentTuner - 管楽器チューナー](https://appshunter.io/ios/app/windinstrumenttuner/id6760515036)
- [TryDiet](https://appshunter.io/ios/app/trydiet/id6760956967)
- [住宅ローン計算シミュレーター](https://appshunter.io/ios/app/id6761039889)
- [Bass Tuner - Bass Guitar Only](https://appshunter.io/ios/app/bass-tuner-bass-guitar-only/id6761100387)
- [Standard Metronome](https://appshunter.io/ios/app/standard-metronome/id6761403036)
- [Vocalist - 歌練習・ボーカルトミュート機能付き](https://appshunter.io/ios/app/vocalist/id6761674601)

All apps by Kouki Yoshimoto: https://appshunter.io/developer/1884780659

## Related topics

[fm synth](https://appshunter.io/ios/topics/fm-synth) · [pcm2612 retro decimator unit](https://appshunter.io/ios/topics/pcm2612-retro-decimator-unit) · [syntho](https://appshunter.io/ios/topics/syntho) · [dxi fm synthesizer](https://appshunter.io/ios/topics/dxi-fm-synthesizer)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*