VAPolyMk5 vs Pianoesis
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VAPolyMk5
This is a powerful bitimbral polyphonic synthesizer with a re-designed step sequencer. It offers advanced oscillator features, a cascaded OTA low-pass filter, and extensive modulation capabilities. Operate it as a standalone app or an AudioUnit Extension.
- Bitimbral polyphonic synthesis
- Re-designed step sequencer
- Hard sync and through zero FM oscillators
- Cascaded OTA low-pass filter
- AudioUnit Extension (AUv3) support
- Ableton Link and MIDI 2.0 support
- Built-in effects suite
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VAPolyMk5 is bitimbral polyphonic synthesizer. Main feature of Mk5 is re-designed step sequencer which contains one note sequencer and three modulation sequencers. Oscillator feature hard sync and through zero FM. Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit. Each synthesizer consists of three oscillators, resonant low pass and high pass filter, amplifier, three envelope generators, two LFO and key tracking. Two synthesizers can be configured as layer or split. Mk5 also features global LFO, output morphing, classic ring modulator and easy target assignment for mod wheel and aftertouch. VAPolyMk5 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 Bi-timbral Polyphonic Synthesizer Oscillators feature hard sync and through zero FM. Low pass Filter is modeled on cascaded OTA -24dB per octave low pass filter circuit. Re-designed step sequencer Re-designed offset control Improved output morphing. Improved classic ring modulator. Improved key tracking Easy target assignment for mod wheel and aftertouch 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 Foot Pedal and Per Note Control. Support Ableton Link, Bluetooth MIDI, MIDI In / Out. Works on iPhone, iPad and Mac. Support iCloud Drive to share project files between the platforms. General Improvements Support MIDI Foot Pedal (CC#11, CC#64) Support MIDI2.0 Per Note Control Messages MIDI CC Settings are saved. It will be recovered when the app launched in the next time. UI Color can be selected from black, navy, gray or blown. Adjustable text size for title of controls Factory Preset 208 Synth CH Preset 256 Effect Preset 40 Default & Macro 8 System Requirements 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. Sound may be distorted if CPU of the device doesn't have enough power. If it happens reduce number of voices or enable Low Power Mode in setting panel. App launches in Low Power Mode in the first time on device with iOS earlier than iOS 18.0 as mono-timbral.
Pianoesis
This app transforms MIDI and MusicXML files into playable piano scores with a unique tap-anywhere interface. Enjoy solo play with an AI duet partner or collaborate with a friend in split-screen mode. Experience music in various visual styles, including an engraved staff view.
- Import MIDI/MusicXML/solo piano recordings
- Tap anywhere on screen to play
- Offline play
- Solo play with AI duet partner
- Duo Mode for split-screen play with a friend
- Multiple visual modes (staff, piano roll, sprite jump)
- Voice separation for complex pieces
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Pianoesis is a fully offline rhythm-piano duet platform with zero learning curve. Import a local MIDI/MusicXML/solo piano recording and get a playable score in one tap. No keys to aim at — tap anywhere on screen to play. The tempo is entirely yours, so every performance stays true to the score yet sounds unmistakably like you. Play solo and the app is your duet partner; in Duo Mode, play both hands yourself — or split them with a friend, one hand each. MUSICXML & STAFF VIEW Import .musicxml, .xml, or .mxl. Scores are parsed on-device and open directly in the staff view, engraved by Verovio. Tap the score to seek, turn pages, zoom, expand repeat signs, and choose grace-note style; played notes light up their noteheads in track colors. Regular MIDI can also generate a staff score automatically. MusicXML is read-only: note editing, voice separation, track mapping, and original audio are unavailable; the file can be saved unchanged to My Folder and reopened as a staff score. SINGLE-HAND SPLIT SCREEN On wide screens, split the pitch area into two panes: same piece, same progress, with independent layouts (Horizontal / Sprite Jump / Vertical / Score). DUO MODE On iPad landscape or unfolded iPhone Duo, the screen splits into two halves, one hand on each side. Play with both hands yourself, or split the piece with a friend — one hand each. The two sides stay in sync — all you do is keep the beat. ▪ Built for iPad: the split layout, touch targets, and navigation are tailored to two-hand play on the big screen ▪ Duo Sprite Jump: twin sprites leap in sync, with live scoring and sync halos for even more ensemble fun ▪ Staff view: MusicXML or score-MIDI pieces support a full-width staff score WHY IT ALWAYS SOUNDS GOOD ▪ Every note lands right: the melody is locked to the source score, so any tap hits the correct pitch. ▪ A perfect duet by design: the app plays the other hand in real time — two-hand harmony without the coordination practice. ▪ True to the original: your part and the accompaniment both follow the original score. ▪ Two sound sources: a warm, lifelike MIDI piano, or the original piano recording in lossless quality. Switch anytime. OUR SIGNATURE VISUAL — THE TAIJI SPINNING STAFF On the home screen, treble and bass notes drift out along a slowly spinning taiji staff — a signature animation that brings the idea to life: 88 keys become one, and the app is your duet partner. MORE WAYS TO SEE THE MUSIC ▪ Taiji spinning staff ▪ Horizontal piano roll ▪ Sprite Jump ▪ Vertical waterfall ▪ Engraved staff score ▪ Single-hand split screen FOUR WAYS TO SEPARATE VOICES ▪ Ready-made tracks: pick one hand from a two-track MIDI and start playing. ▪ Smart separation: single-track MIDI or piano audio is split into melody and accompaniment automatically. ▪ Track mapping: carry a proven left/right-hand split from a reference score over to your piece. ▪ Fine editing: hand-assign individual notes for tricky passages. MusicXML scores use fixed treble/bass tracks and are excluded from voice separation and track mapping. FULLY OFFLINE ▪ Everything runs on-device. No account, no uploads. ▪ MusicXML scores are parsed and engraved on-device — never uploaded or distributed. ▪ No ads, no in-app purchases, no subscriptions. ▪ The built-in library is fully licensed for free distribution — per-piece sources and licenses are listed under "Copyright" in the library. ▪ Universal: iPhone, iPad, and Mac. SUPPORTED FORMATS ▪ MIDI: .mid / .midi ▪ MusicXML: .musicxml / .xml / .mxl (single-instrument piano grand staff) ▪ Audio: MP3 / WAV / FLAC / M4A / AAC — solo piano recordings work best SUPPORT & PRIVACY ▪ Sheet-music engraving: Verovio (RISM Digital Center, LGPL-3.0) ▪ Website: https://pianoesis.com ▪ Privacy policy: https://pianoesis.com/privacy ▪ Contact: support@pianoesis.com
Screenshots
Verdict
The clearest difference is price: Pianoesis at Free against VAPolyMk5's $14.99. On update cadence, ads, in-app purchases and device support 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
Pianoesis is free to download; VAPolyMk5 costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VAPolyMk5 ships an update weekly, Pianoesis every 10 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | VAPolyMk5 | Pianoesis |
|---|---|---|
| Price | $14.99 | Free — better |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 2 — better |
| Update frequency | Weekly — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, Mac — better | iPhone, iPad |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 21 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Ryo Togawa | 征宇 孙 |
Customer experience
VAPolyMk5
Pianoesis
In-app purchases
VAPolyMk5
No in-app purchases
Pianoesis
No in-app purchases









