# SpectrumGen vs Mobile MIDI

The clearest difference is update cadence: Mobile MIDI at every 6 weeks against SpectrumGen's every 14 months. Mobile MIDI also leads on review sentiment (100% vs 74%). SpectrumGen's advantage is price ($0.99 vs $3.99) and iOS requirement (12.0 vs 14.0). On ads, in-app purchases, monetization model and device support there is nothing between them.

SpectrumGen costs $0.99 and Mobile MIDI $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SpectrumGen ships an update every 14 months, Mobile MIDI every 6 weeks. The most recent releases landed on October 23, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SpectrumGen | Mobile MIDI |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/spectrumgen/id455656272/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 73.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 6 weeks** |
| Monetization | Paid | Paid |
| Size | 3 MB | 21 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Zolotov](https://appshunter.io/developer/324462547) | [Adam Hammad](https://appshunter.io/developer/1894518543) |

## What reviewers say

### SpectrumGen

[App page](https://appshunter.io/ios/app/spectrumgen/id455656272)

Create unique sounds by drawing their spectral representation. This synthesizer offers real-time sound generation and export options, with customizable octaves and MIDI support for enhanced musical expression.

**Highlights:** Draw sound spectrum in real-time, Export to WAV format, Eight predefined timbres, Adjustable octaves (2-8), MIDI keyboard support, Audiobus and IAA compatible

**Features:** macOS Compatibility

**In-app purchases:** none


### Mobile MIDI

[App page](https://appshunter.io/ios/app/mobile-midi/id6762522027)

Transform your mobile device into a versatile wireless MIDI controller. Utilize touch, motion, and device sensors to control virtually any aspect of your music production software. Save and share custom layouts for a personalized workflow.

**Highlights:** Wireless MIDI control via Bluetooth, Wi-Fi, or USB, Touch controls: drum pads, keyboard, XY pad, faders, Motion control: accelerometer, gyro, compass, pressure, ARKit face tracking and hand gesture control, AirPods head tracking for hands-free expression, Customizable layout designer, Save and share presets

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

**In-app purchases:** none


## Frequently asked questions

### Is SpectrumGen free?

SpectrumGen costs $0.99, with no in-app purchases.

### Is Mobile MIDI free?

Mobile MIDI costs $3.99, with no in-app purchases.

### Do SpectrumGen or Mobile MIDI have ads?

Neither SpectrumGen nor Mobile MIDI shows ads.

### Which is updated more often, SpectrumGen or Mobile MIDI?

SpectrumGen ships an update every 14 months, and Mobile MIDI every 6 weeks. Most recently, SpectrumGen was updated on October 23, 2026 and Mobile MIDI on October 31, 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.*