# SpectrumGen vs RingsFX

The clearest difference is rating: RingsFX at 4.9 against SpectrumGen's 4.4. RingsFX also leads on update cadence (fortnightly vs every 14 months) and review sentiment (100% vs 74%). SpectrumGen's advantage is price ($0.99 vs $7.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

SpectrumGen costs $0.99 and RingsFX $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RingsFX holds the better App Store score, 4.9 against 4.4. Both are backed by a comparable volume of ratings — 10 and 26 respectively. Written reviews point the same way: 74% of SpectrumGen's written reviews are positive against 100% of RingsFX's.

SpectrumGen ships an update every 14 months, RingsFX fortnightly. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | SpectrumGen | RingsFX |
| --- | --- | --- |
| Price | **$0.99** | $7.99 |
| Rating | [4.4 (10 ratings)](https://appshunter.io/ios/app/spectrumgen/id455656272/reviews) | **[4.9 (26 ratings)](https://appshunter.io/ios/app/ringsfx/id6478013769/reviews)** |
| Number of ratings | 10 | **26** |
| Positive reviews | 73.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 3 MB | 23 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Zolotov](https://appshunter.io/developer/324462547) | [4Pockets.com](https://appshunter.io/developer/370131860) |

## 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


### RingsFX

[App page](https://appshunter.io/ios/app/ringsfx/id6478013769)

This music app emulates a renowned physical modeling synthesizer, offering diverse synthesis techniques and polyphonic capabilities. It allows for real-time parameter manipulation and can process external audio, creating unique sonic textures and rhythms.

**Highlights:** Physical modeling synthesis emulation, Multiple polyphony modes (Mono, Duo, Quad, True Polyphonic), Supports MIDI MPE and velocity sensitivity, External audio excitation, Mod Matrix for real-time parameter control, 7 unique synthesis modes, 6 mod-able and 6 global effects

**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 RingsFX free?

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

### Which has better reviews, SpectrumGen or RingsFX?

RingsFX is rated higher. SpectrumGen averages 4.4 out of 5 from 10 ratings, while RingsFX averages 4.9 from 26 ratings.

### Do SpectrumGen or RingsFX have ads?

Neither SpectrumGen nor RingsFX shows ads.

### Which is updated more often, SpectrumGen or RingsFX?

SpectrumGen ships an update every 14 months, and RingsFX fortnightly. Most recently, SpectrumGen was updated on September 17, 2026 and RingsFX on September 21, 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.*