# VoxSyn vs Mass

The clearest difference is review sentiment: Mass at 100% against VoxSyn's 48%. Mass also leads on rating (5.0 vs 3.1). VoxSyn's advantage is price ($0.99 vs $9.99) and update cadence (every 9 days vs every 4 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

VoxSyn costs $0.99 and Mass $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mass holds the better App Store score, 5.0 against 3.1. Both are backed by a comparable volume of ratings — 18 and 11 respectively. Written reviews point the same way: 48% of VoxSyn's written reviews are positive against 100% of Mass's.

VoxSyn ships an update every 9 days, Mass every 4 months. Both last shipped on October 15, 2026.

## The numbers

| Metric | VoxSyn | Mass |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | [3.1 (18 ratings)](https://appshunter.io/ios/app/voxsyn/id1098787951/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/mass-midi-generator/id6498471263/reviews)** |
| Number of ratings | **18** | 11 |
| Positive reviews | 48.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 31 MB | 10 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [Usable Creations](https://appshunter.io/developer/1718600235) |

## What reviewers say

### VoxSyn

[App page](https://appshunter.io/ios/app/voxsyn/id1098787951)

Transform your voice into a versatile vocal sound generator. This app captures your vocal modulations to create unique sounds beyond traditional vocoding, allowing you to trigger synthesizer sounds with your voice or a keyboard. Expand your sonic palette with a vast pool of presets and effects.

**Highlights:** Voice control of pitch and timbre, 22-channel vocoder, Integrated preset synthesizer engine, Hundreds of presets, Hi-end audio effects, Audiobus and Inter App Audio compatible, MIDI and background audio support

**Features:** Vision Pro support

**In-app purchases:** none


### Mass

[App page](https://appshunter.io/ios/app/mass-midi-generator/id6498471263)

This app is a physics-based MIDI generator that allows musicians to create complex generative sequences, organic modulations, and explore boundless musical experimentation. It offers a powerful toolkit for creative control and can be used as a standalone application or an AUv3 plugin.

**Highlights:** Generative Sequences, Living Modulations, Euclidean Pattern Sequencing, Flexible MIDI CC, Physics-Based Animation, Standalone & AUv3 Plugin, MIDI Sync, iCloud Sync

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VoxSyn free?

VoxSyn costs $0.99, with no in-app purchases.

### Is Mass free?

Mass costs $9.99, with no in-app purchases.

### Which has better reviews, VoxSyn or Mass?

Mass is rated higher. VoxSyn averages 3.1 out of 5 from 18 ratings, while Mass averages 5.0 from 11 ratings.

### Do VoxSyn or Mass have ads?

Neither VoxSyn nor Mass shows ads.

### Which is updated more often, VoxSyn or Mass?

VoxSyn ships an update every 9 days, and Mass every 4 months. Most recently, VoxSyn was updated on October 15, 2026 and Mass on October 15, 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.*