Sparkverb vs VAPolyFM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sparkverb
This advanced audio plugin offers innovative algorithmic reverb with modern controls for enhanced usability and creative freedom. It delivers breathtaking sound quality and remarkable CPU efficiency for various music production needs.
- Cutting-edge algorithmic design
- Modern and innovative controls
- Breathtaking sound quality
- Remarkable CPU efficiency
- Versatile for ensembles and sound design
- Enhances usability and creative freedom
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Compatible with AUv3 host apps such as GarageBand, Auria, AUM, Cubasis and n-Track Pro. Sparkverb, the algorithmic reverb, redefined With a cutting-edge algorithmic design, Sparkverb breaks the boundaries of contemporary reverbs giving users modern and innovative controls that enhance usability, speed and creative freedom while delivering breathtaking sound quality and remarkable CPU efficiency. Whether you’re working with small ensembles, massive orchestras, sound design or anything in-between, Sparkverb offers a unique experience and innovative feature set that helps you work faster, smarter and more creatively than ever before. "Gorgeous! Loving all the different flavors of reverb algorithms that are in there. Really versatile and detailed!" - Richard Devine, Electronic Musician, Producer & Sound Designer "An amazing source of inspiration when looking for creative reverb sounds and special effects." - Fab Dupont, Grammy-award winning Mixing Engineer & Producer
VAPolyFM
Create music with a versatile hybrid synthesizer offering both FM and virtual analog subtractive synthesis. Explore a wide range of effects, a built-in sequencer, and extensive MIDI support. Save and share projects seamlessly across iPhone, iPad, and Mac.
- FM synthesizer with 6 operators
- Virtual analog subtractive synthesizer
- Built-in effects (delay, chorus, reverb)
- Sequencer with piano roll editor
- AudioUnit Extension (AUv3) support
- Ableton Link and MIDI 2.0 support
- iCloud Drive project sharing
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VAPolyFM is a hybrid polyphonic synthesizer for iPhone, iPad and Mac. It features FM synthesizer and subtractive synthesizer. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. FM synthesizer features 6 operators and 32 algorithm and it is inspired by FM synthesizers of the 1980’s. Virtual analog subtractive synthesizer features two oscillators, resonant high pass filter, resonant low pass filter and two ADSR envelopes per voice. Built-in Effects include delay, chorus, flanger, reverb, eq and compressor. VAPolyFM also includes sequencer which features piano roll editor and parameter automation. Project files can be saved in iCloud Drive, so that the project can be accessed from iPhone, iPad or Mac. - Main Features - FM Synthesizer. 6 operators and 32 algorithm. Virtual analog subtractive synthesizer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Built-in effects and sequencer. Support MIDI 2.0 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. Includes 139 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.
Screenshots
Verdict
The clearest difference is price: VAPolyFM at $14.99 against Sparkverb's $29.99. Sparkverb's advantage is update cadence (every 3 months vs every 17 months) and rating (4.8 vs 4.5). 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
Sparkverb costs $29.99 and VAPolyFM $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sparkverb holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 4 and 6 respectively.
Sparkverb ships an update every 3 months, VAPolyFM every 17 months. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.
| Parameter | Sparkverb | VAPolyFM |
|---|---|---|
| Price | $29.99 | $14.99 — better |
| Rating | 4.8 (4 ratings) — better | 4.5 (6 ratings) |
| Positive reviews | — | 16.7% of reviews |
| Number of ratings | 4 | 6 — better |
| Update frequency | Every 3 months — better | Every 17 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 9.3 — better | 16.6 |
| Further details — not scored | ||
| Size | 101 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | UVI | Ryo Togawa |
Customer experience
Sparkverb
VAPolyFM
In-app purchases
Sparkverb
No in-app purchases
VAPolyFM
No in-app purchases









