# GSi Piano Studio vs VAPolyPro

GSi Piano Studio and VAPolyPro both sit at 5.0 stars, but that hides the real split: 100% of VAPolyPro's written reviews are positive against 33% of GSi Piano Studio's. VAPolyPro also leads on price ($4.99 vs $19.99) and update cadence (every 2 days vs monthly). On rating, ratings volume, ads and in-app purchases there is nothing between them.

GSi Piano Studio costs $19.99 and VAPolyPro $4.99 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 GSi Piano Studio against 5.0 for VAPolyPro. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 33% of GSi Piano Studio's written reviews are positive against 100% of VAPolyPro's.

GSi Piano Studio ships an update monthly, VAPolyPro every 2 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | GSi Piano Studio | VAPolyPro |
| --- | --- | --- |
| Price | $19.99 | **$4.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/gsi-piano-studio/id6796081575/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/vapolypro/id6801931805/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 33.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 99 MB | 22 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Soundware](https://appshunter.io/developer/1560880481) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### GSi Piano Studio

[App page](https://appshunter.io/ios/app/gsi-piano-studio/id6796081575)

This application uses advanced synthesis to recreate the sound of a grand piano. Users can customize various elements of the piano's mechanics to achieve unique sounds. It requires a physical MIDI keyboard for playback and is best suited for modern devices.

**Highlights:** Physical modeling sound generation, Full polyphony, Virtual sympathetic resonance, Customizable velocity curves, Session Recorder, AUv3 plugin support

**In-app purchases:** none


### VAPolyPro

[App page](https://appshunter.io/ios/app/vapolypro/id6801931805)

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.

**Highlights:** Multiple VCO and VCF types, Stereo VCF and VCA, MPE support, Built-in effects, Step sequencer, Audio Unit Extension (AUv3), iCloud Drive project sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GSi Piano Studio free?

GSi Piano Studio costs $19.99, with no in-app purchases.

### Is VAPolyPro free?

VAPolyPro costs $4.99, with no in-app purchases.

### Which has better reviews, GSi Piano Studio or VAPolyPro?

GSi Piano Studio and VAPolyPro are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do GSi Piano Studio or VAPolyPro have ads?

Neither GSi Piano Studio nor VAPolyPro shows ads.

### Which is updated more often, GSi Piano Studio or VAPolyPro?

GSi Piano Studio ships an update monthly, and VAPolyPro every 2 days. Most recently, GSi Piano Studio was updated on October 24, 2026 and VAPolyPro on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*