# PolyBud Polyrhythmic Sequencer vs Mass

The clearest difference is price: PolyBud Polyrhythmic Sequencer at $3.99 against Mass's $9.99. PolyBud Polyrhythmic Sequencer also leads on update cadence (every 5 weeks vs every 4 months) and iOS requirement (13.0 vs 17.0). Mass's advantage is chart position (#176 vs unranked). On rating, review sentiment, ratings volume and ads there is nothing between them.

PolyBud Polyrhythmic Sequencer costs $3.99 and Mass $9.99 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 PolyBud Polyrhythmic Sequencer against 5.0 for Mass. Both are backed by a comparable volume of ratings — 9 and 11 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

PolyBud Polyrhythmic Sequencer ships an update every 5 weeks, Mass every 4 months. The most recent releases landed on September 21, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | PolyBud Polyrhythmic Sequencer | Mass |
| --- | --- | --- |
| Price | **$3.99** | $9.99 |
| Rating | [4.9 (9 ratings)](https://appshunter.io/ios/app/polybud-polyrhythmic-sequencer/id1624211288/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/mass-midi-generator/id6498471263/reviews)** |
| Number of ratings | 9 | **11** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Paid | Paid |
| Best chart rank | — | **#176** |
| Size | 7 MB | 10 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cem Olcay](https://appshunter.io/developer/523633853) | [Usable Creations](https://appshunter.io/developer/1718600235) |

## What reviewers say

### PolyBud Polyrhythmic Sequencer

[App page](https://appshunter.io/ios/app/polybud-polyrhythmic-sequencer/id1624211288)

Create complex musical sequences with multiple polyrhythmic tracks. Control note, velocity, gate, and MIDI CC parameters with independent step lengths and rates. Route MIDI output to your favorite synths and AUv3 hosts.

**Highlights:** Multitrack polyrhythmic MIDI sequencing, Note and MIDI CC tracks, Configurable step lengths per mode, Independent track rates, Assignable MIDI channels, Ramp value for CC smoothing, AUv3 plugin support

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Mass

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

**Currently charting:** #176 Top Paid · Music (US App Store)

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 PolyBud Polyrhythmic Sequencer free?

PolyBud Polyrhythmic Sequencer costs $3.99, with no in-app purchases.

### Is Mass free?

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

### Which has better reviews, PolyBud Polyrhythmic Sequencer or Mass?

Mass is rated higher. PolyBud Polyrhythmic Sequencer averages 4.9 out of 5 from 9 ratings, while Mass averages 5.0 from 11 ratings.

### Do PolyBud Polyrhythmic Sequencer or Mass have ads?

Neither PolyBud Polyrhythmic Sequencer nor Mass shows ads.

### Which is updated more often, PolyBud Polyrhythmic Sequencer or Mass?

PolyBud Polyrhythmic Sequencer ships an update every 5 weeks, and Mass every 4 months. Most recently, PolyBud Polyrhythmic Sequencer was updated on September 21, 2026 and Mass on September 13, 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.*