# StepBud vs Mass

The clearest difference is rating: Mass at 5.0 against StepBud's 4.4. Mass also leads on review sentiment (100% vs 71%). StepBud's advantage is update cadence (fortnightly vs every 4 months) and price ($4.99 vs $9.99). On ads, in-app purchases and device support there is nothing between them.

StepBud costs $4.99 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 4.4. Both are backed by a comparable volume of ratings — 38 and 11 respectively. Written reviews point the same way: 71% of StepBud's written reviews are positive against 100% of Mass's.

StepBud ships an update fortnightly, Mass every 4 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | StepBud | Mass |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | [4.4 (38 ratings)](https://appshunter.io/ios/app/stepbud-auv3-midi-sequencer/id1453104408/reviews) | **[5.0 (11 ratings)](https://appshunter.io/ios/app/mass-midi-generator/id6498471263/reviews)** |
| Number of ratings | **38** | 11 |
| Positive reviews | 70.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Monetization | **Free** | Paid |
| Size | 8 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

### StepBud

[App page](https://appshunter.io/ios/app/stepbud-auv3-midi-sequencer/id1453104408)

This app is a versatile MIDI sequencer that allows for unlimited steps and detailed control over each step's parameters. It integrates with other music apps and supports various sequencing modes for creative performances.

**Highlights:** Unlimited steps, Step parameter control (note, velocity, rate, etc.), Custom MIDI CC messages, Step locking and skipping, Master fader with copy/shift modes, Step Editor for detailed note editing, Arpeggio modes (up, down, random)

**Features:** macOS Compatibility, 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 StepBud free?

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

### Is Mass free?

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

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

Mass is rated higher. StepBud averages 4.4 out of 5 from 38 ratings, while Mass averages 5.0 from 11 ratings.

### Do StepBud or Mass have ads?

Neither StepBud nor Mass shows ads.

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

StepBud ships an update fortnightly, and Mass every 4 months. Most recently, StepBud was updated on November 6, 2026 and Mass on November 4, 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.*