# iProphet Synthesizer

> Classic digital synthesizer emulation with vector synthesis and extensive sound sculpting. (iPhone/iPad app by Arturia.)

- Source: https://appshunter.io/ios/app/iprophet-synthesizer/id898449685 (this page in markdown: same URL + `.md`)
- Developer: [Arturia](https://appshunter.io/developer/549089551)
- Category: Music, Entertainment
- Price: $9.99
- Rating: 3.63/5 from 32 App Store ratings · 100 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 85 MB
- Languages: English
- Released: 2014-09-30
- Data updated: 2026-06-11
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/iprophet-synthesizer/id898449685/reviews.md

## What is iProphet Synthesizer?

When a punchy, fat sound is demanded, look no further. iProphet recreates the unique sound of the classic Sequential Circuits Prophet VS synthesizer. 

Need help? Have an issue or question? Please email us at support@retronyms.com. 

The Prophet VS's rareness and classic digital sound make it a mainstay for those who can find them. The sound is purely classic crisp digital sound that easily stands on its own, but at the same time is the perfect compliment to the sound of analog synthesizers. iProphet brings the crystaline vintage sound of four digital oscillators and allows sculpting them using a creamy and warm multimode filter. 

iProphet comes with over 500 presets created by some of todays best sound designers. Use it in Tabletop to compose your music. You can morph the sound of the 4 oscillators using the joystick or the vector mode and the vector envelope. You can also swap presets between iProphet and Arturia's Prophet V synthesizer which allows you to work on the iPad and finish in the DAW of your choice.

iProphet is a Tabletop Ready app. The connect menu allows you to connect iProphet to the Retronyms Tabletop app, giving you an integration with a complete studio environment. Tabletop also features add-ons for more effects and instruments from other 3rd party companies. 

iProphet supports Core MIDI, interapp-audio as well as Audiobus technologies for perfect integration. The use of the brands 'Prophet' and 'Sequencial Circuits' is done with permission of Dave Smith Instruments. 

Features Include: 
- Vector screen with joysticks to mix oscillators and envelopes
- Super flexible Modulation Matrix 
- 3 DSP effects (overdrive, delay, and chorus) 
- 96 different wave forms to control pitch 
- 4 filter types 
- Vector envelope featuring loop points
- Unison/detune for beefy sounds
- Full user MIDI mapping of panel controls
- Tabletop Ready app 
- Soundcloud seeder (via Tabletop)
- Render to .wav file (via Tabletop)
- AudioCopy to paste your audio into another iPad application (via Tabletop)

## Key features

- Vector screen with joysticks
- Modulation Matrix
- 3 DSP effects
- 96 waveforms
- 4 filter types
- Vector envelope
- Unison/detune

## What do users think of iProphet Synthesizer?

Overall sentiment: mixed

**Pros**

- 🎵 Authentic Prophet VS sound quality and character
- 🎹 Deep modulation matrix with vector synthesis capabilities
- 🎚️ Extensive preset library with diverse sounds
- 🎨 Intuitive visual interface and design
- 💰 Affordable price point for feature set
- 🎧 Excellent pad and ambient sound creation
- ⚙️ Highly tweakable parameters for sound design

**Cons**

- 🐛 Persistent audio distortion and crackling issues
- 🐛 Frequent crashes and app freezes
- 🔌 Poor inter-app audio (IAA) and Audiobus integration
- 🔋 Excessive battery drain in background
- ⚠️ Abandoned by developer with no updates
- ❌ Missing AUv3 plugin support
- 🎛️ Limited MIDI implementation and control
- 🎵 Audio quality issues with certain sample rates
- 🔊 Stuck notes and hanging audio problems
- 📱 Compatibility issues with newer iOS versions
- 🎹 Only 4-note polyphony instead of 8
- 🎚️ Modulation matrix changes persist across presets

**Commonly reported bugs**

- Audio distortion and crackling in all presets
- App crashes on iOS 14+ versions
- Inter-app audio (IAA) connection requires multiple restarts
- Preset changes cause app freezes and audio cutouts
- Stuck and hanging notes when sliding on keyboard
- Modulation settings incorrectly apply across different presets
- Low-frequency humming loop persists during playback
- AirPods Max audio quality degradation
- Audiobus integration causes lockout and screeching
- iPad goes to sleep during drone playback
- Save preset function not working
- Waveform display shows white blocks in Tabletop
- Sustain pedal not responding to MIDI messages
- Preset polyphony status changes unexpectedly
- App becomes unresponsive in DAW environments

**Most requested features**

- AUv3 plugin support for Logic Pro and other DAWs
- Ability to save custom patches and presets
- Velocity and aftertouch MIDI support
- MIDI control for joystick parameter
- User-defined waveform creation
- Full 8-note polyphony support
- Background audio playback capability
- MIDI output functionality
- Master transpose feature
- Key and velocity zones
- Sequencer built into app
- Sample rate adjustment options
- Persistent MIDI channel settings
- Last preset memory on app launch

## Recent user reviews (10 of 100)

All indexed reviews: https://appshunter.io/ios/app/iprophet-synthesizer/id898449685/reviews.md

### 1/5 — Abandoned

*2026-05-22, version 1.35*

Not updated for years.  The midi implementation does not work.  The app should just be removed.  I’m surprised Arturia would want this to still be available when the midi is so broken.

### 1/5 — No longer useable

*2026-03-12, version 1.35*

I really don’t think this has been updated for many years. Many of the presets are chock-full of artifacts, buzzing in the background which renders this once interesting keyboard useless.

### 5/5 — Jekyll and Hyde

*2026-03-02*

Bought this “abandonware” after spotting a note that suggested running this in AEM after hitting the “high quality” button in AEM Settings.  (Thanks Marty)  Night and Day.

### 1/5 — Wish you could save patches

*2025-08-07*

This is a fantastic synth, however without the ability to save patches after all the parameter tweaking it kind of defeats the purpose of using it unless you’re ok with presets. Seems like a glitch that’s been part of the app for a few years now. At least it is for me.  
As soon as that’s fixed, then it’s 5 stars.

### 2/5 — 2025 and there is still this problem?

*2025-06-05*

Distortion! I see others had this problem years ago, and now I have it. I am only giving it the second star because it was good before it had the distortion problem.

### 3/5 — Audio crackle / distortion on IPad Pro iOS 18.4 in standalone mode

*2025-04-09*

Audio crackle and distorted sounds, every preset and parameter. Most likely due to sample rate, but cannot change or fix. It works fine in 44.1 so load it in AudioShare or other apps that enable sample rate change.

### 1/5 — Seems Arturia abandoned this and other iOS apps

*2025-03-20*

Abandonware.

### 5/5 — 5 years after the last review I see…

*2025-02-08*

This app is fine. It has nice loud, authentic sounds.  I’ve been using this for a few years now.  5 stars no complaints.

### 2/5 — What happened to saving patches?

*2024-10-26*

Without the ability to save patches after all the parameter tweaking it kind of defeats the purpose of using it unless you’re ok with presets. Seems like a glitch that’s been part of the app for a few years now. At least it is for me.  
As soon as that’s fixed, then it’s 5 stars.

### 2/5 — Abandonware

*2024-08-18, version 1.35*

It was never fully right. Deleted now. Pity.

## Frequently asked questions about iProphet Synthesizer

### What does the iProphet Synthesizer app do?

This app recreates the distinctive sound of the classic Sequential Circuits Prophet VS synthesizer. It allows users to sculpt unique sounds using four digital oscillators, a multimode filter, and a flexible modulation matrix. The app also includes over 500 presets created by professional sound designers.

### What are the key features of iProphet Synthesizer?

Key features include a vector screen with joysticks for oscillator mixing, a super flexible modulation matrix, three DSP effects (overdrive, delay, chorus), 96 waveforms, four filter types, and a vector envelope with loop points. It also offers unison/detune for richer sounds and full user MIDI mapping.

### How much does iProphet Synthesizer cost?

The application is a paid app. There are no in-app purchases or advertisements mentioned in the description, indicating a one-time purchase for full functionality.

### What are the compatibility and integration options for iProphet Synthesizer?

The app is Tabletop Ready and supports Core MIDI, inter-app audio, and Audiobus technologies for seamless integration with other music production tools and DAWs. It can also swap presets with Arturia's Prophet V synthesizer.

### Who would benefit from using iProphet Synthesizer?

Musicians, producers, and sound designers who desire the classic, crisp digital sound of the Prophet VS synthesizer would benefit. It's ideal for those looking to add vintage digital textures to their music, whether as a standalone instrument or as a complement to analog synths.

## Version history (last 5 releases)

### 1.35 — 2020-12-20

Fixed crash at start on iOS 14. 

If you are happy with this update, please consider leaving a review. If you need help, please email us at support@retronyms.com and we will be happy to assist!

### 1.33 — 2017-09-18

iProphet is now compatible with iOS 11!

Need help? Have an issue or question? Please email us at support@retronyms.com. If you're enjoying the update, please leave us a review in the App Store. :)

### 1.32 — 2017-09-14

iProphet is now compatible with iOS 11!

Need help? Have an issue or question? Please email us at support@retronyms.com. If you're enjoying the update, please leave us a review in the App Store. :)

### 1.31 — 2017-05-05

We improved Audiobus compatibility. 

If you are happy with this update, please leave your review in the App Store. If there is something not working properly or you have additional feedback, please email us at support@retronyms.com.

### 1.3 — 2015-10-09

- Updated Audiobus SDK for better iOS9 compatibility

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## More apps by Arturia

- [iMini Synthesizer](https://appshunter.io/ios/app/imini-synthesizer/id603340125)
- [iSEM Synthesizer](https://appshunter.io/ios/app/isem-synthesizer/id673921187)
- [Arturia iSpark](https://appshunter.io/ios/app/arturia-ispark/id1045383182)
- [AstroLab Connect](https://appshunter.io/ios/app/astrolab-connect/id6471487067)

All apps by Arturia: https://appshunter.io/developer/549089551

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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 2026-06-11.*