VAPolyMod vs JenDie
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VAPolyMod
This app is a polyphonic synthesizer with a modular architecture offering multiple audio routing configurations. It includes a step sequencer, built-in effects, and supports various MIDI and audio export options. Projects can be shared across devices via iCloud.
- Modular architecture with 4 audio routing configurations
- Dual VCOs, VCFs, and VCAs
- 6 envelope generators and 5 LFOs
- Built-in effects (delay, chorus, reverb, etc.)
- 3-channel analog style step sequencer
- Audio Unit Extension (AUv3) support
- Ableton Link and MIDI 2.0 support
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VAPolyMod features a preconfigured modular architecture that offers four audio routing configurations of voice modules, consisting of dual VCOs, dual VCFs, and dual VCAs, ranging from stereo channels to layered channels. It also contains 6 envelope generators and five LFOs. VAPolyMod operates as a stand alone or as an AudioUnit Extension (AUv3) for iPhone, iPad and Mac. Stand Alone supports Ableton Link, MIDI and audio file export. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. Main Features - Polyphonic Synthesizer. - a preconfigured modular architecture that offers four audio routing configurations - Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit. - 3 channel analog style step sequencer. - Maximum 8 voice polyphony. it depends on performance of the device it is running. - Built-in effects and piano roll sequencer. - Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) - Support Audio Unit Extension (AUv3). - Support MIDI 2.0. - Support Ableton Link, Bluetooth MIDI, MIDI In / Out. - Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. - Support MIDI Foot Pedal (CC#11, CC#64) - MIDI CC Settings are saved. It will be recovered when the app launched in the next time. - UI Color can be selected from black, navy, gray, blown and red. - Font size for title of controls are adjustable. - Factory Preset 128 - Effects Preset 40 System Requirements - iOS 17.0 or later - Devices with Apple Silicon are recommended. A13 Fusion or above is highly recommended. - AudioUnit Extension (AUv3) requires host application which support AudioUnit Extension. - AudioUnit Extension is supported by Apple Logic and Apple Garage Band on iOS and macOS. For any other DAW, it depends on the application and some of them don’t support AudioUnit Extension. - Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices.
JenDie
This app faithfully emulates a classic 1970s Italian monophonic analog synthesizer for iPhone and iPad. It offers authentic vintage sound with modern touch controls, allowing for expressive leads, basses, and evolving textures. Use it standalone or as an AUv3 plugin in compatible hosts.
- Faithful Jen SX-1000 emulation
- Authentic & Clean sound modes
- Continuous waveform morphing
- Pulse width & PWM modulation
- 46 factory presets
- Full preset management
- Multi-touch keyboard
- MIDI support
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JenDie is inspired by the legendary Jen SX-1000 — the classic Italian monophonic analog synthesizer of the late 1970s — reimagined for your iPhone and iPad. Every oscillator, filter, and envelope has been carefully modeled to recreate the warm, gritty, unmistakable character of that vintage analog sound, now in a modern, touch-first instrument. Use JenDie as a standalone synth or as an Audio Unit (AUv3) plug-in inside GarageBand, AUM, Cubasis, Logic Pro for iPad, and any AUv3-compatible host. KEY FEATURES • Faithful Jen SX-1000 emulation — true-to-hardware VCO, VCF, and envelope behavior, including analog drift for an authentic, living tone. • Authentic & Clean modes — choose vintage character or a cleaner, more precise sound. • Continuous waveform morphing — sweep smoothly between waveforms instead of switching in steps, with automatable control for evolving leads and basses. • Pulse width & PWM — shape and modulate the pulse waveform for rich, animated timbres. • 46 factory presets — from classic vintage leads and basses to new morphing patches designed for automation. • Full preset management — save, organize, and recall your own sounds; presets are stored in the Files app for easy backup and sharing. • Multi-touch keyboard — playable on-screen keyboard with multi-finger support. • Pinch-to-zoom interface — zoom and pan the panel for precise control on any screen size. • MIDI support — play JenDie from any connected MIDI controller, with a built-in MIDI Panic control. • Optimized for iOS — efficient DSP designed to run smoothly on iPhone and iPad. WHO IT'S FOR Whether you're a synth enthusiast chasing that vintage monophonic sound, a producer who needs a characterful lead and bass machine, or a sound designer exploring evolving textures, JenDie delivers genuine analog attitude in a portable package. Download JenDie and bring a piece of analog synth history to your mobile studio.
Screenshots
Verdict
The clearest difference is price: JenDie at $4.99 against VAPolyMod's $14.99. JenDie also leads on iOS requirement (12.0 vs 16.6). On rating, ratings volume, ads and in-app purchases 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
VAPolyMod costs $14.99 and JenDie $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for VAPolyMod against 5.0 for JenDie. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | VAPolyMod | JenDie |
|---|---|---|
| Price | $14.99 | $4.99 — better |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | Diego Capoccitti |
Customer experience
VAPolyMod
JenDie
In-app purchases
VAPolyMod
No in-app purchases
JenDie
No in-app purchases








