VAPolyQuad vs mididelay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VAPolyQuad
Create rich, analog-style music with this powerful polyphonic synthesizer. Explore a vast array of sound-shaping tools, including multiple oscillators, filters, and effects. Program intricate melodies and rhythms with the built-in sequencer, and seamlessly share projects across your Apple devices.
- Virtual analog polyphonic synthesizer
- Up to 8 voice polyphony
- Four oscillators per voice
- Multiple resonant filters
- Built-in effects suite
- 16-bar sequencer with piano roll
- Audio Unit Extension (AUv3) support
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VAPolyQuad is a virtual analog polyphonic synthesizer for iPhone, iPad and Mac. It features 8 voice synthesizer, effects, sequencer and audio visualization tools. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. Single voice of the synthesizer features four oscillators, two mixers, two resonant high pass filters, two resonant low pass filters, two amplifiers, four ADSR envelopes and four LFOs. The oscillators features continuously variable wave shape and wide variety of modulation. The filters are modeled on the Sallen-Key filter circuit and cascaded OTA filter circuit for classic analog sound. The Effects include delay, chorus, flanger, reverb, eq and compressor. The sequencer features piano roll and parameter automation editor to program 16 bar pattern per clip. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. - Main Features - Virtual analog polyphonic synthesizer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Four oscillators per voice. Flexible audio signal and control signal routing. Keyboard Control Routing Two type of Lowpass filter, cascaded OTA model and Sallen-key model. Support MIDI 2.0 New User Interface built by SwiftUI for improved performance. Built-in Sequencer. 16 bar patterns per clip. Total 8 clips. Piano Roll and Parameter automation. Support Audio Unit Extension (AUv3) Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. Audio Export. Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Ableton Link, Bluetooth MIDI, MIDI In / Out. 370 Factory Presets - System Requirements - A13 Fusion or above is 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.
mididelay
This app applies traditional delay effects to MIDI data, allowing for complex sound manipulation. It offers multiple independent delay lines, various MIDI message processing, and customizable feedback chains with built-in effects. Organize lines sequentially or in parallel for unique sonic textures.
- 8 independent delay lines with feedback
- Processes MIDI notes, CC, aftertouch, pressure, pitch bend
- Customizable feedback modes (average, min, max)
- Sequential and parallel delay line algorithms
- Scale quantize, pitch, and velocity randomization
- 3 independent scenes with cross-fading
- Standalone and AUv3 support
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mididelay is an implementation of traditional delay effect adapted for the MIDI data. It features: • 8 independent delay lines with feedback • Each delay line can process MIDI notes, control change, aftertouch, polyphonic key pressure and pitch bend messages. • For the feedback, the “feedback level” is applied to the messages; note messages change velocity and all other messages can be mixed with previous values using one of three modes (average, minimum and maximum value) • It’s possible to organise delay lines in different possible ‘algorithms’, sequentially and/or in parallel • There are three effects available inside delay’s feedback chain: scale quantise, pitch and velocity value operations randomisation • Each ‘preset’ contains 3 independent scenes marked “A”,”B” and “C”, it’s possible to cross- fade between them and adjust overall amount of the effect with 2D pad. • Simple mode : only one delay with scenes morphing. Standalone and AUv3
Screenshots
Verdict
The clearest difference is review sentiment: mididelay at 100% against VAPolyQuad's 0%. mididelay also leads on price ($4.99 vs $14.99) and rating (5.0 vs 4.0). On ratings volume, ads, in-app purchases and monetization model 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
VAPolyQuad costs $14.99 and mididelay $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
mididelay holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 0% of VAPolyQuad's written reviews are positive against 100% of mididelay's.
VAPolyQuad ships an update every 22 months, mididelay every 10 months. The most recent releases landed on September 22, 2026 and September 9, 2026 respectively.
| Parameter | VAPolyQuad | mididelay |
|---|---|---|
| Price | $14.99 | $4.99 — better |
| Rating | 4.0 (5 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 5 — better | 3 |
| Update frequency | Every 22 months | Every 10 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.6 | 15.6 — better |
| Further details — not scored | ||
| Size | 16 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | Alexey Nadzharov |
Customer experience
VAPolyQuad
mididelay
In-app purchases
VAPolyQuad
No in-app purchases
mididelay
No in-app purchases
Questions
Is VAPolyQuad free?
Is mididelay free?
Which has better reviews, VAPolyQuad or mididelay?
Do VAPolyQuad or mididelay have ads?
Which is updated more often, VAPolyQuad or mididelay?
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