VAPoly16 vs springVerb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VAPoly16
This app is a virtual analog polyphonic synthesizer for iOS and Mac. It offers 16 voices, a sequencer, and various audio effects. It can be used as a standalone application or as an AudioUnit Extension.
- 16 voice virtual analog synthesizer
- Bitimbral sound design
- Sequencer with piano roll and automation
- Multiple audio effects (delay, reverb, chorus, etc.)
- Standalone and AUv3 extension support
- Ableton Link and MIDI connectivity
- Audio file export
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VAPoly16 is a virtual analog bitimbral polyphonic synthesizer for iPhone, iPad and Mac. It features 16 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. The synthesizer consists of two 8 voice synthesizer, which features two oscillators, two ADSR envelopes, resonant high pass and low pass filter and an amplifier per voice. The oscillators features continuously variable wave shape and wide variety of modulation. The filters are modeled on the Sallen-Key filter circuit for classic analog sound. The Effects include delay, chorus, flanger, reverb, eq and compressor. The sequencer features piano roll and 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 16 voice bitimbral polyphonic synthesizer Sequencer 16 bar patterns per clip. Total 16 clips. Parameter automation. Audio Export Linear PCM format (AIFF, WAV and CAF) and compressed format (AAC) Support Audio Unit Extension (AUv3) Works on iPhone, iPad and Mac. Support iCloud Drive. Support Ableton Link, Bluetooth MIDI, MIDI In / Out. System Requirements For iOS Devices, A10 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.
springVerb
This app offers a wide range of vintage and modern spring reverb effects for music production. It features 14 distinct spring modes and extensive controls for deep sound customization, including EQ and automation. Presets can be saved and shared across platforms.
- 14 Spring Reverb Models
- 16+ In-depth Controls
- Built-in 3-band EQ
- Preset Manager
- Cross-platform Preset Sharing
- Automation Control
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Vintage Vibes, Timeless Reverberations Spring reverb has a long history, making its debut on organ sounds and rapidly gaining attention after being built into some of the most famous guitar amps known to man. In today's musical world, spring reverb is now pretty much used on anything that could use just a touch of ambience. Experience Spring in Full Spectrum with 14 Vibrant Spring Modes springVerb is packed with 14 spring modes to give you a wide range of spring sounds to take your sounds to the next level. Fully Customizable Sound for Any Situation Unlock the full sonic potential of each mode with in-depth controls; Mix, Dampening, Ducking, Left/Right Repeats and Decay. Their three band EQ Section (Low, Mid, and High), and master controls (Master Volume & Pan). Seamless Integration Across Platforms. All settings can be saved and loaded in your sessions as well as cross platform presets. All parameters offer automation control to get the most expressive sound. Features - 14 Spring Reverb Models; ranging from early/vintage styles to creatively inspiring and modern/futuristic - Over 16 In-depth controls to sculpt your reverbs, including: Pre Delay, Decay, Damping, Repeat Speed, Ducking, and more! - Built-in 3-band EQ section for additional sonic character control - Preset Manager with Save, Save As, Rename, and Delete functionality - Over 20 Factory presets, including both Send and Insert styles - Cross-platform support: presets can be shared between iOS and macOS & Windows
Screenshots
Verdict
The clearest difference is review sentiment: VAPoly16 at 100% against springVerb's 0%. VAPoly16 also leads on rating (5.0 vs 4.3) and update cadence (every 2 months vs every 5 months). springVerb's advantage is price ($4.99 vs $14.99) and iOS requirement (12.0 vs 16.4). 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
VAPoly16 costs $14.99 and springVerb $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VAPoly16 holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 13 and 6 respectively. Written reviews point the same way: 100% of VAPoly16's written reviews are positive against 0% of springVerb's.
VAPoly16 ships an update every 2 months, springVerb every 5 months. The most recent releases landed on September 20, 2026 and September 7, 2026 respectively.
| Parameter | VAPoly16 | springVerb |
|---|---|---|
| Price | $14.99 | $4.99 — better |
| Rating | 5.0 (13 ratings) — better | 4.3 (6 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 13 — better | 6 |
| Update frequency | Every 2 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 20 MB | 80 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | OSC Audio |
Customer experience
VAPoly16
springVerb
In-app purchases
VAPoly16
No in-app purchases
springVerb
No in-app purchases









