Synthecaster vs VAPolyWest
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Synthecaster
This app offers a unique polyphonic instrument that blends guitar and keyboard elements, allowing for diverse playing styles and sound generation. It features intuitive controls, motion modulation for expressive performance, and a powerful synth engine with extensive customization options.
- Polyphonic synth engine
- String-like key rows
- Motion Modulation for expressiveness
- MIDI controller functionality
- Built-in effects (flanger, chorus, delay)
- Customizable synth presets
- Inter-App Audio and Audiobus support
Read full descriptionHide full description
Synthecaster fuses elements from guitars and keyboards into a full range polyphonic instrument that is intuitive, accommodates a wide variety of playing styles, and generates an even wider variety of sounds. The instrument allows for technical playing styles such as shredding and complex chord formation and can be used as a MIDI controller. Now with Motion Modulation, Synthecaster is more expressive than ever. - Keys are arranged in string-like rows (tuned in perfect fourths by default) - Sliding across keys in a row results in legato sliding or portamento gliding from note to note - Sliding a key up or down will bend its pitch in the same direction - Several notes can be played on the same row simultaneously - Simultaneously play up to 10 notes on iPad Pro, 7 notes on iPad, or 5 notes on iPhone - The entire keyboard spans over 6 octaves (not including the range added by oscillator tuning) - Tune each row individually - Highlight or show only the notes from any scale How Motion Modulation works: - Any slider-based synth parameter with blue or green text can be tapped to view its motion settings - The parameter can be modulated by the device's roll (tilting vertically clockwise or counterclockwise) or pitch (tilting upward or downward) - The position of the parameter's slider is the base setting for the parameter - Tilting the device modulates the value either from its base setting to its minimum or maximum setting depending on the tilt, the modulation amount, and the modulation direction. Synthecaster's audio is generated by a powerful and highly configurable polyphonic synth engine: - Dual oscillators with individual tuning - Filter with envelope sweeping - Amplifier ADSR envelope - Soft clip, hard clip, bitcrush, and downsampling distortion - LFO assignable to amplitude, filter cutoff, or oscillator tuning - Stereo flanger, chorus, and delay effects - Over 55 preloaded synth presets including 7 motion presets - Create custom presets and share them using AirDrop or Mail - High quality stereo audio output - Inter-App Audio support - Audiobus compatibility with state saving Synthecaster is Core MIDI compatible as a MIDI controller. In Multi Channel mode, MIDI messages are output in OMNI mode, where each MIDI channel represents a synth voice (channels 1-7 on the iPad, 1-5 on the iPhone). To best replicate Synthecaster’s polyphonic expressiveness, try setting a separate instrument voice for each channel. The following MIDI messages are supported: - Note on/off events, by touching and releasing keys - Pitch wheel change, by sliding a key up or down - Polyphonic legato ties by sliding across keys. Compatible with a variety of apps including Animoog and ThumbJam. - Legato pedal on/off for legato ties, by sliding across keys For best results, play through speakers or headphones. Note: Not recommended for iPhone 4 due to performance issues.
VAPolyWest
This app is a polyphonic synthesizer inspired by 1960s California west coast synthesis. It features wave folding, lowpass gates, and step sequencers for generative music creation. It functions as a standalone app or an AudioUnit Extension across iPhone, iPad, and Mac.
- Virtual analog west coast style polyphonic synthesizer
- Wave folder and lowpass gate
- Step sequencer and envelope generators
- Up to 8 voice polyphony
- Audio Unit Extension (AUv3) support
- MIDI 2.0 support
- Audio export options
Read full descriptionHide full description
VAPolyWest is inspired by synthesizers developed in California in the 1960’s. VAPolyWest features wave folder and lowpass gate, which are key components of the west coast synthesis. VAPolyWest also features 5 step sequencer and envelope generators which are designed to create generative music. VAPolyWest works on iPhone, iPad and Mac. It operates as a stand alone or as an AudioUnit Extension (AUv3). Stand Alone supports Ableton Link, MIDI and audio file export. - Main Features - Virtual analog west coast style polyphonic synthesizer. Maximum 8 voice polyphony. it depends on performance of the device it is running. Wave folder and lowpass gate for West Coast Synthesis. Step sequencer and envelopes designed for generative music. Support MIDI 2.0 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. - 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 update cadence: Synthecaster at every 2 months against VAPolyWest's every 10 months. Synthecaster also leads on review sentiment (90% vs 75%) and price ($0.99 vs $3.99). 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
Synthecaster costs $0.99 and VAPolyWest $3.99 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 — 4.9 for Synthecaster against 5.0 for VAPolyWest. Both are backed by a comparable volume of ratings — 14 and 5 respectively. Written reviews are what separate them: 90% of Synthecaster's written reviews are positive against 75% of VAPolyWest's.
Synthecaster ships an update every 2 months, VAPolyWest every 10 months. The most recent releases landed on October 29, 2026 and October 26, 2026 respectively.
| Parameter | Synthecaster | VAPolyWest |
|---|---|---|
| Price | $0.99 — better | $3.99 |
| Rating | 4.9 (14 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 90.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 14 — better | 5 |
| Update frequency | Every 2 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 4 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Resnick | Ryo Togawa |
Customer experience
Synthecaster
VAPolyWest
In-app purchases
Synthecaster
No in-app purchases
VAPolyWest
No in-app purchases









