# JAX MASTERING vs Prism MIDI Sequencer

The clearest difference is price: JAX MASTERING at $9.99 against Prism MIDI Sequencer's $19.99. JAX MASTERING also leads on in-app purchases (none vs 5) and iOS requirement (12.0 vs 16.0). Prism MIDI Sequencer's advantage is update cadence (every 2 weeks vs every 25 months). On ads and device support there is nothing between them.

JAX MASTERING costs $9.99 and Prism MIDI Sequencer $19.99 up front. Prism MIDI Sequencer sells 5 one-off in-app purchases. JAX MASTERING asks for nothing beyond the download.

JAX MASTERING ships an update every 25 months, Prism MIDI Sequencer every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | JAX MASTERING | Prism MIDI Sequencer |
| --- | --- | --- |
| Price | **$9.99** | $19.99 |
| Rating | — | **[4.7 (34 ratings)](https://appshunter.io/ios/app/prism-midi-sequencer/id6502302630/reviews)** |
| Number of ratings | — | **34** |
| Positive reviews | — | 85.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 78 MB | 55 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jens Guell](https://appshunter.io/developer/1195004865) | [Tyler Quatraro](https://appshunter.io/developer/1724470298) |

## What reviewers say

### JAX MASTERING

[App page](https://appshunter.io/ios/app/jax-mastering-mbc-pro/id1619272047)

**Features:** macOS Compatibility

**In-app purchases:** none


### Prism MIDI Sequencer

[App page](https://appshunter.io/ios/app/prism-midi-sequencer/id6502302630)

This app is a powerful 16-track MIDI step sequencer designed for iOS devices. It allows users to create complex musical patterns with high resolution, elastic timing, and per-step control. It integrates with external synths and samplers, offering extensive features for melody, harmony, and drum sequencing.

**Highlights:** 16-track AUv3 MIDI step sequencer, High resolution and elastic timing, Per-step control and step FX, Scale modes and flow modes for tonal tracks, 16 mini-sequencers per drum track, LFOs, arpeggiator, and generative tools, Scene and mute profile performance modes

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LFO Extension | $4.99 | one-time |
| Step FX | $4.99 | one-time |
| Multi-Sequencer  Tone Tracks | $4.99 | one-time |
| Launchkey Mini MK4 Control | $4.99 | one-time |
| Euclidean Sequencer Extension | $4.99 | one-time |


## Frequently asked questions

### Is JAX MASTERING free?

JAX MASTERING costs $9.99, with no in-app purchases.

### Is Prism MIDI Sequencer free?

Prism MIDI Sequencer costs $19.99, and also offers in-app purchases.

### Do JAX MASTERING or Prism MIDI Sequencer have ads?

Neither JAX MASTERING nor Prism MIDI Sequencer shows ads.

### Which is updated more often, JAX MASTERING or Prism MIDI Sequencer?

JAX MASTERING ships an update every 25 months, and Prism MIDI Sequencer every 2 weeks. Most recently, JAX MASTERING was updated on November 3, 2026 and Prism MIDI Sequencer 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.*