EchoSketch vs VAPolyPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EchoSketch
Shape delay and reverb effects in real-time with a playable X/Y performance surface. Explore four distinct delay types and multiple reverb options, with extensive parameter control for unique sound morphing. Works as a standalone app or an Audio Unit plugin.
- X/Y performance surface for real-time sound shaping
- Four distinct delay types: digital, analog, reverse, ping-pong
- Spring, plate, and hall convolution reverb
- Modulation and tone control for echoes
- HOLD, LIFT, FREEZE, and MOTION performance gestures
- Standalone app and AUv3 plugin compatibility
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EchoSketch turns delay and reverb into a live, playable instrument. Shape your sound in real time using a responsive X/Y performance surface designed for intuitive touch expression. At its core are four great-sounding delays: digital, analog, ping-pong, and reverse. The range for each parameter and the XY axes direction can be set independently, allowing you to easily morph between sounds. It works as an Audio Unit plugin or standalone — iOS or Mac. Comprehensive Delays • Digital (patterned after a legendary '80s rack delay), Analog (warm, with tape-style pitch glide), Reverse, and Left/Right Ping-Pong • Delay times can sync to tempo or be set in milliseconds • Feedback features delay-dependent tone shaping — bright for short delays and darker for long ones Convolution Reverb • Stereo or mono Spring, Plate, and Hall • Reverb path is separate from the delay (same as vintage tape echo units), so repeats don’t get washed out Modulation and Filter • Analog-style modulation for chorused, warbly pitch echoes • Tone control — darken or brighten delays, with a center detent for flat Designed for Hands-On Performance • HOLD / LIFT — leave the XY cursor in place, or touch the pad for momentary delay sounds • FREEZE — set the current feedback into an infinite loop and play over it • MOTION — record a gesture on the XY pad and loop it Presets and More • Presets are transferable between hosts • Two looks — light "Trail" and dark "Glow" • Works standalone with live audio or as an AUv3 plugin • Universal — iPad/iPhone also gets you the Mac version — one purchase • Mac: after installing, open EchoSketch once to use it as a plugin in your DAW • Works in AUM, AudioBus, GarageBand, Logic, and other AUv3 hosts
VAPolyPro
Create a wide range of sounds with this polyphonic synthesizer, featuring multiple oscillator and filter types, MPE support, and built-in effects. It functions as a standalone app or an AudioUnit Extension for Mac and iOS devices, with iCloud Drive integration for project sharing.
- Multiple VCO and VCF types
- Stereo VCF and VCA
- MPE support
- Built-in effects
- Step sequencer
- Audio Unit Extension (AUv3)
- iCloud Drive project sharing
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VAPolyPro features three types of VCOs and three types of VCFs that can generate a wide range of sounds, from warm analog synths to FM-synthesized acoustic instruments. It also includes a stereo VCF and VCA for spacious sound, and MPE for expressive sound. VAPolyPro 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 3 types of VCO includes Analog, Unison and FM. 3 types of VCF includes Cascade, Ladder And Sallen-Key. Stereo VCF and VCA. Support MPE through MIDI2.0 MPE Profile. Pseudo velocity/ pressure for iOS piano keyboard. 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. Selectable UI Color. Font size for title of controls are adjustable. - Factory Preset 336 - Effects Preset 40 System Requirements (This app is offered as universal purchase for iOS and macOS) iOS 17.0 or later macOS 14.0 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.
Screenshots
Verdict
The clearest difference is price: EchoSketch at $7.99 against VAPolyPro's $19.99. On rating, ratings volume, 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
EchoSketch costs $7.99 and VAPolyPro $19.99 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 EchoSketch against 5.0 for VAPolyPro. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on September 29, 2026 and September 28, 2026 respectively.
| Parameter | EchoSketch | VAPolyPro |
|---|---|---|
| Price | $7.99 — better | $19.99 |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 2 days | Every 2 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Mac |
| Requires iOS | 17 | 16.6 — better |
| Further details — not scored | ||
| Size | 5 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Avi Bortnick | Ryo Togawa |
Customer experience
EchoSketch
VAPolyPro
In-app purchases
EchoSketch
No in-app purchases
VAPolyPro
No in-app purchases









