# Musix Pro vs GridStep

The clearest difference is rating: GridStep at 5.0 against Musix Pro's 4.6. GridStep also leads on price ($3.99 vs $9.99) and update cadence (every 2 weeks vs every 6 weeks). Musix Pro's advantage is ratings volume (136 vs 3) and chart position (#185 vs unranked). On ads, in-app purchases, monetization model and device support there is nothing between them.

Musix Pro costs $9.99 and GridStep $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GridStep holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Musix Pro has 136 ratings behind it against 3, so its average is the more settled of the two.

Musix Pro ships an update every 6 weeks, GridStep every 2 weeks. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Musix Pro | GridStep |
| --- | --- | --- |
| Price | $9.99 | **$3.99** |
| Rating | [4.6 (136 ratings)](https://appshunter.io/ios/app/musix-pro-midi-controller/id585857087/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/gridstep/id6756443258/reviews)** |
| Number of ratings | **136** | 3 |
| Positive reviews | 77.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 weeks** |
| Monetization | Paid | Paid |
| Best chart rank | **#185** | — |
| Size | 16 MB | 5 MB |
| Requires iOS | **13.2** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shiverware](https://appshunter.io/developer/389159820) | [Joe Topjian](https://appshunter.io/developer/1860697112) |

## What reviewers say

### Musix Pro

[App page](https://appshunter.io/ios/app/musix-pro-midi-controller/id585857087)

**Currently charting:** #185 Top Paid · Music (US App Store)

This app offers an intuitive musical instrument and MIDI controller with an isomorphic layout that arranges notes based on harmonic relationships. It allows users of all skill levels to explore music theory, create melodies easily, and connect with DAWs and synthesizers.

**Highlights:** Isomorphic note arrangement, Customizable layouts, MIDI and OSC support, Audiobus integration, Built-in instruments, Note labeling and coloring

**Features:** Vision Pro support

**In-app purchases:** none


### GridStep

[App page](https://appshunter.io/ios/app/gridstep/id6756443258)

A professional MIDI step sequencer offering a focused grid-based workflow for clear, controlled, and predictable music creation. It functions as a standalone app and an AUv3 plugin, ideal for both live performance and composition.

**Highlights:** Grid-based MIDI step sequencing, Explicit edit modes for notes, velocity, slides, and mutes, Trigger-based step advance, Controlled pattern generation, AUv3 MIDI effect plugin, Standalone app functionality

**In-app purchases:** none


## Frequently asked questions

### Is Musix Pro free?

Musix Pro costs $9.99, with no in-app purchases.

### Is GridStep free?

GridStep costs $3.99, with no in-app purchases.

### Which has better reviews, Musix Pro or GridStep?

GridStep is rated higher. Musix Pro averages 4.6 out of 5 from 136 ratings, while GridStep averages 5.0 from 3 ratings.

### Do Musix Pro or GridStep have ads?

Neither Musix Pro nor GridStep shows ads.

### Which is updated more often, Musix Pro or GridStep?

Musix Pro ships an update every 6 weeks, and GridStep every 2 weeks. Most recently, Musix Pro was updated on November 10, 2026 and GridStep on November 5, 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.*