# Phasemaker — 6-OP FM Synth Plugin

> A 6-operator FM synthesizer plugin for iOS with classic digital sound. (iPhone/iPad app by Bram Bos.)

- Source: https://appshunter.io/ios/app/phasemaker/id1161642832 (this page in markdown: same URL + `.md`)
- Developer: [Bram Bos](https://appshunter.io/developer/325340444)
- Category: Music
- Price: $3.99
- Rating: 4.30/5 from 33 App Store ratings · 48 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 16 MB
- Languages: American English
- Released: 2016-10-20
- Data updated: 2026-08-17
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/phasemaker/id1161642832/reviews.md

## What is Phasemaker?

>> Phasemaker requires iPad 4/Mini 2/iPhone 5S/iPod Touch 6 or higher <<

A full-blown 6-Operator FM Synth on iOS, building on the legacy of the classic synthesizers that defined the digital era of the 1980s.

This is an Audio Unit instrument (AUv3), offering tight integration in many leading mobile DAWs, such as Auria, Garageband, Cubasis, Beatmaker 3 and AUM.

Frequency Modulation brings rich timbres and dynamic evolving sounds full of personality which are impossible to create with analog modelling. The 6-Operator architecture allows for lively multi-layered sounds with lots of expression and playability.

Phasemaker's characteristic FM sound will add classic digital character to your mobile sonic arsenal which no other analog synth can bring.

- Universal: runs on iPad (Air recommended), iPhone and iPod Touch
- Audio Unit v3 compatible
- Audiobus 2.3 compatible
- CoreMidi compatible standalone mode (with background audio)
- Bluetooth MIDI compatible
- Custom preset management; user presets available across AU hosts
- Dozens of factory presets
- 42 FM Algorithms (including all 32 DX7 layouts)
- 12 Oscillators, including the 8 original TX81z waveforms
- All 106 parameters can be automated using MIDI CC and AU Parameters
- Vintage sounding chorus and reverb effects for classic ambiance
- User manual available on www.ruismaker.com

## Key features

- 6-Operator FM Synthesis
- 42 FM Algorithms
- 12 Oscillators
- Audio Unit (AUv3) compatible
- Standalone mode with CoreMidi
- Custom preset management
- Vintage chorus and reverb effects

## Recent user reviews (10 of 48)

All indexed reviews: https://appshunter.io/ios/app/phasemaker/id1161642832/reviews.md

### 3/5 — I was wrong

*2026-01-11*

This is better than I originally thought. It is still typical of Bram Bos user interfaces. Odd but you can get some beautiful sounds out of this synth. It sounds pretty meh at first but running it through Popsicle and Other Desert Cities brings it to life. Adding a filter makes it far more interesting and it has more polyphony than a digitone without the absurd price tag. 
Don’t give up if you too are underwhelmed at first.

### 2/5 — Kills battery in Bg

*2026-01-07*

Noticed my battery was really low a few days in a row. Since installing this app, it's eaten up 15-25% of my batter daily due to being constantly on in the background

### 4/5 — A good no-frills fm synth

*2024-06-05*

A gooad addition to any setup in Auv3 or with a daw...pretty nitpicky synth,for those that like that type of thing lol decent...

### 2/5 — Being Phased Out?

*2023-07-25*

Underwhelmed, I sit here with an app in front of me that first and foremost does not even fit in the space of a modern iPhone screen. This app is obviously designed for a much older device and apparently needs updating. However, be warned if you do provoke a response from said developer (Bram Bos), he will defensively pronounce the app as perfectly complete in and of itself. Needless to say the app has a whopping 103 FM sound patches to work with that can only be accessed once you have figured out how to work around the bug riddled interface. For example, they wont appear on an iphone 13 pro max until you have selected user bank and then back to factory. But again, not worth reporting to the dev because he will claim that you just want to criticize him and not appreciate his hard work. Some devs just shouldn’t do their own customer support. I digress.

### 1/5 — Only one preset?

*2023-05-10*

The only preset seems to be 80s piano and that’s it. Why not call it that if that’s all it is?

### 2/5 — Not Bram’s Best

*2022-08-22, version 1.3.9*

This software fm synth got left behind. It’s not even compatible with regular dx7 patches. The included patches are so primitive and thoughtless as it is this is a huge disappointment. I expected better to be honest.

### 1/5 — Crashes on key press

*2022-04-14*

Anytime I press a key, it crashes. Wish I could use it. Using iPad Air iOS 15.

### 4/5 — Bom app!

*2020-10-07*

Como todos os apps desse desenvolvedor, bem legal.

### 1/5 — Não funciona

*2020-01-08*

Acabei de comprar esse app o mesmo fecha instantaneamente não funciona não me atendeu 👎🏼

### 5/5 — Excellent AU integration

*2019-11-11*

This synth relies less on presets and more on design, which is really the way things were supposed to work. With such flexibility it’s more enjoyable creating your own patches. This may be the most tweakable, flexible synth I own.

## Frequently asked questions about Phasemaker

### What is Phasemaker?

Phasemaker is a full-featured 6-operator FM synthesizer designed for iOS devices. It emulates the sound of classic 1980s digital synthesizers and offers deep sound design capabilities through its extensive algorithms and oscillator options.

### What are the key features of Phasemaker?

Key features include 6-operator FM synthesis, 42 FM algorithms (including DX7 layouts), 12 oscillators with classic waveforms, vintage-sounding chorus and reverb effects, and comprehensive MIDI and AU parameter automation. It also offers custom preset management and dozens of factory presets.

### How much does Phasemaker cost?

Phasemaker is a paid application. There are no in-app purchases or advertisements mentioned in the provided description.

### What devices are compatible with Phasemaker?

Phasemaker requires iPad 4/Mini 2/iPhone 5S/iPod Touch 6 or higher. It is a universal app that runs on iPad (Air recommended), iPhone, and iPod Touch.

### How does Phasemaker integrate with other music apps?

Phasemaker is an Audio Unit instrument (AUv3), allowing for tight integration with leading mobile DAWs like Auria, Garageband, Cubasis, Beatmaker 3, and AUM. It also supports Audiobus 2.3 and CoreMidi for standalone use with background audio.

## Version history (last 5 releases)

### 1.3.9 — 2018-11-29

- Plugin now centers correctly in all hosts
- Plugin now scales correctly in Garageband on all iPhones

### 1.3.8 — 2018-11-26

Improved scaling across different screen sizes.

### 1.3.7 — 2017-11-21

[Standalone app] Disables swipe gestures introduced in iOS 11.1 to avoid insensitivity of the keyboard around the screen's edges

### 1.3.6 — 2017-11-06

- Slightly tweaked Legato behavior
- Maximum polyphony now automatically limited by device performance (to minimize dropouts and CPU overload)

### 1.3.5 — 2017-10-12

- Implemented workarounds for some "Files" and "Open In..." related weirdness
- Minor internal rendering optimizations

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## More apps by Bram Bos

- [Ruismaker](https://appshunter.io/ios/app/ruismaker/id1122156899)
- [Ruismaker FM](https://appshunter.io/ios/app/ruismaker-fm/id1143644577)
- [Troublemaker](https://appshunter.io/ios/app/troublemaker/id1180892130)
- [Ripplemaker](https://appshunter.io/ios/app/ripplemaker/id1207806723)
- [Rozeta Sequencer Suite](https://appshunter.io/ios/app/rozeta-sequencer-suite/id1292546479)

All apps by Bram Bos: https://appshunter.io/developer/325340444

## Related topics

[fm pocket synthesiser](https://appshunter.io/ios/topics/fm-pocket-synthesiser)

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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 2026-08-17.*