iProphet Synthesizer vs Model 15 Modular Synthesizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iProphet Synthesizer
This app emulates the classic Sequential Circuits Prophet VS synthesizer, offering its unique digital sound. Sculpt sounds with four digital oscillators, a multimode filter, and extensive modulation options. It includes over 500 presets and integrates with other music production tools.
- Vector screen with joysticks
- Modulation Matrix
- 3 DSP effects
- 96 waveforms
- 4 filter types
- Vector envelope
- Unison/detune
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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)
Model 15 Modular Synthesizer
This app recreates a legendary modular synthesizer for mobile devices. Explore its iconic modules, experiment with sound design, and create music with intuitive controls and advanced features.
- Iconic Moog module recreation
- Monophonic and 4-voice polyphonic operation
- Integrated Moog keyboard and ribbon controller
- Sequencing arpeggiator
- MIDI integration and external control
- Looping recorder with overdubbing
- AUv3 Audio Unit Extensions support
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The Moog Model 15 App is the first Moog modular synthesizer and synthesis educational tool created exclusively for iPad, iPhone and iPod touch. Each facet of the Moog Model 15 modular synthesizer has been meticulously recreated in this application to ensure the power and transcendent sound quality of each module remains intact. The character, harmonic complexity and mystique of the Moog Model 15’s modules, from the legendary Moog 921–series oscillators and 904A Low Pass Filter, to the coveted 907 Fixed Filter Bank have been painstakingly preserved. In order to develop the most immersive and expressive modular interface possible, the Model 15 App has been designed utilizing Apple’s new Metal advanced graphics engine. This ensures that all zooming, panning and modular patching throughout the application feels completely natural, something that would have been impossible otherwise. The Model 15 App features both monophonic and 4-voice polyphonic operation is easily commanded via 4 seamlessly integrated controllers. Simple swipes and taps provide instant access to a traditional Moog keyboard, 1150 ribbon controller, 8-step sequencing arpeggiator and the award-winning Animoog keyboard with 22 built-in scales and polyphonic modulation capabilities. Also included are extended features which expand the capabilities of the app beyond the traditional offerings of the hardware Moog Model 15. These include total MIDI integration, assignment for external control, use as a MIDI controller, dedicated Audio Bridge and MIDI Bridge modules, looping recorder module with overdubbing, a master ping-pong delay module and a new extension cabinet that includes additional amplifiers and voltage-controlled reversible attenuators that can be used for effects like ring-modulation. Because the Model 15 App utilizes Apple’s Metal technology, only 64-bit devices are supported. Compatible devices include iPhone 5s or newer, iPod touch 6 or newer, iPad Air or newer, and the iPad Pro. The Model 15 App requires iOS version 12.4 or later to work. Additional Features • Ships with over 160 unique presets • Recreates the sound of a hardware Moog Model 15 modular synthesizer • Easily share presets and recordings with anyone • Tutorial patches to assist all experience levels • Intuitive patching and cable coloring • Support for landscape and portrait modes • Voltage-controlled stereo ping-pong delay • Expressive sequencing arpeggiator • Moog 1150 Ribbon controller • Real-time looping recorder with overdub and immediate sharing • Up to two controllers on-screen (iPad only) • Optional left-handed UI operation Supports • AUv3 Audio Unit Extensions • 3D Touch and Apple Pencil integration for after pressure • Note-per-channel MIDI controllers • Ableton Link • Inter-App Audio and Audiobus • MIDI Bridge and Audio Bridge • 7 and 14-Bit MIDI • MIDI Program Change • Bluetooth LE MIDI controllers • Typing keyboards for shortcuts and musical typing • AudioCopy, AudioPaste and AudioShare
Screenshots
Verdict
The clearest difference is review sentiment: Model 15 Modular Synthesizer at 86% against iProphet Synthesizer's 34%. Model 15 Modular Synthesizer also leads on rating (4.9 vs 3.5) and ratings volume (898 vs 32). iProphet Synthesizer's advantage is price ($9.99 vs $29.99) and in-app purchases (none vs 10). On update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
iProphet Synthesizer costs $9.99 and Model 15 Modular Synthesizer $29.99 up front. Model 15 Modular Synthesizer sells 10 one-off in-app purchases. iProphet Synthesizer asks for nothing beyond the download.
Model 15 Modular Synthesizer holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: Model 15 Modular Synthesizer has 898 ratings behind it against 32, so its average is the more settled of the two. Written reviews point the same way: 34% of iProphet Synthesizer's written reviews are positive against 86% of Model 15 Modular Synthesizer's.
iProphet Synthesizer ships an update every 5 months, Model 15 Modular Synthesizer every 3 months. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.
| Parameter | iProphet Synthesizer | Model 15 Modular Synthesizer |
|---|---|---|
| Price | $9.99 — better | $29.99 |
| Rating | 3.5 (32 ratings) | 4.9 (898 ratings) — better |
| Positive reviews | 34.0% of reviews | 86.5% of reviews — better |
| Number of ratings | 32 | 898 — better |
| Update frequency | Every 5 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | — | #77 — better |
| Devices | iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 8.0 — better | 12.4 |
| Further details — not scored | ||
| Size | 85 MB | 857 MB |
| Age rating | 4+ | 4+ |
| Developer | Arturia | Moog Music Inc. |
Customer experience
iProphet Synthesizer
Model 15 Modular Synthesizer
User reviews
iProphet Synthesizer
From 32 App Store ratingsWhat we love
- 🎵 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
Room to improve
- 🐛 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
Model 15 Modular Synthesizer
From 898 App Store ratingsWhat we love
- 🚀 Incredible sound quality
- 👍 Authentic Moog emulation
- 💡 Great for learning modular synthesis
- 🎨 Beautiful and detailed interface
- 🎹 Expressive MIDI capabilities
Room to improve
- 🐛 Occasional crashes and glitches
- 🔍 Difficult to navigate on smaller screens
- 🕹️ Challenging to patch and tweak
- 🔋 High CPU usage
Bugs and requests
iProphet Synthesizer
Reported bugs
15 issues- 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
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- 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
Requested features
14 requests- 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
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- 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
Model 15 Modular Synthesizer
Reported bugs
3 issues- Arpeggiator direction not working as expected
- Distortion and audio issues on latest iOS versions
- Incompatibility with certain DAWs
Requested features
5 requests- More in-depth tutorials
- Ability to customize module layout
- Zoom/overview option for entire system
- Expanded preset library
- Midi mapping for arpeggiator
In-app purchases
iProphet Synthesizer
No in-app purchases
Model 15 Modular Synthesizer
- Symbiotic EquationsFree
- Synthesist ToolkitFree
- Sonic Mayhem$2.99
Show 7 moreShow fewer
- Sinfonietta Sintesi$2.99
- Psychotropic Synthesis$2.99
- Alien Systems$3.99
- Textural Points$4.99
- Mid-Century Moog$4.99
- Dynamic Drones$4.99
- Mercurial Strategies$5.99
Questions
Is iProphet Synthesizer free?
Is Model 15 Modular Synthesizer free?
Which has better reviews, iProphet Synthesizer or Model 15 Modular Synthesizer?
Do iProphet Synthesizer or Model 15 Modular Synthesizer have ads?
Which is updated more often, iProphet Synthesizer or Model 15 Modular Synthesizer?
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