# MelodySlotMachine vs Nulltrack

The clearest difference is price: MelodySlotMachine at Free against Nulltrack's $7.99. MelodySlotMachine also leads on iOS requirement (11.4 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

MelodySlotMachine is free to download; Nulltrack costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MelodySlotMachine ships an update weekly, Nulltrack every 9 days. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | MelodySlotMachine | Nulltrack |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/melodyslotmachine/id1559407284/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | **Free** | Paid |
| Size | 192 MB | 17 MB |
| Requires iOS | **11.4** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [newforestar co,.ltd](https://appshunter.io/developer/293922531) | [DECTET LLC](https://appshunter.io/developer/6780079930) |

## What reviewers say

### MelodySlotMachine

[App page](https://appshunter.io/ios/app/melodyslotmachine/id1559407284)

Create new melody combinations by rearranging variations using slot dials. This AI-powered tool analyzes musical structure to generate new compositions, aiding composers in projects requiring many variations. Explore next-generation music production and consumption.

**Highlights:** Dial-based melody variation selection, Grid tile operation for timeline visualization, Melody shuffle via device shake, Song and part selection, AI-driven musical structure analysis, Next-generation music creation

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

**In-app purchases:** none


### Nulltrack

[App page](https://appshunter.io/ios/app/nulltrack/id6780079928)

This mobile digital audio workstation offers a unique, grid-based approach to music creation, inspired by classic trackers. It includes built-in synths, a sampler, extensive modulation options, and mixing tools.

**Highlights:** AUv3 plugin support, Two built-in synthesizers, Built-in sampler, Extensive modulation options, Mixing features with track faders, Groove tables for swing/playback, Pattern locking to scales

**In-app purchases:** none


## Frequently asked questions

### Is MelodySlotMachine free?

MelodySlotMachine is free to download, with no in-app purchases.

### Is Nulltrack free?

Nulltrack costs $7.99, with no in-app purchases.

### Do MelodySlotMachine or Nulltrack have ads?

Neither MelodySlotMachine nor Nulltrack shows ads.

### Which is updated more often, MelodySlotMachine or Nulltrack?

MelodySlotMachine ships an update weekly, and Nulltrack every 9 days. Most recently, MelodySlotMachine was updated on October 11, 2026 and Nulltrack on October 18, 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.*