# Combustor vs Relic Flow

The clearest difference is update cadence: Combustor at every 2 months against Relic Flow's every 17 months. Combustor also leads on chart position (#183 vs unranked). Relic Flow's advantage is price ($1.99 vs $4.99) and review sentiment (93% vs 80%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Combustor costs $4.99 and Relic Flow $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Combustor against 4.8 for Relic Flow. Both are backed by a comparable volume of ratings — 19 and 26 respectively. Written reviews are what separate them: 80% of Combustor's written reviews are positive against 93% of Relic Flow's.

Combustor ships an update every 2 months, Relic Flow every 17 months. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Combustor | Relic Flow |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | [4.7 (19 ratings)](https://appshunter.io/ios/app/combustor/id6449939349/reviews) | **[4.8 (26 ratings)](https://appshunter.io/ios/app/relic-flow/id6499490810/reviews)** |
| Number of ratings | 19 | **26** |
| Positive reviews | 80.0% of reviews | **93.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 17 months |
| Monetization | Paid | Paid |
| Best chart rank | **#183** | — |
| Size | 4 MB | 6 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BeepStreet](https://appshunter.io/developer/321412321) | [Alexander Zolotov](https://appshunter.io/developer/324462547) |

## What reviewers say

### Combustor

[App page](https://appshunter.io/ios/app/combustor/id6449939349)

**Currently charting:** #183 Top Paid · Music (US App Store)

This audio effect extension transforms tracks with a unique time-bending resonator. Create vibrant textures, subtle resonances, and dynamic sweeps. It's designed for electronic musicians and producers seeking to add wild or organic qualities to their sounds.

**Highlights:** Time bending resonator effect, Creates distorted textures and physical resonance, Envelope follower for dynamic control, MIDI input for melodic control, Performative interface, AUv3 compatible

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

**In-app purchases:** none


### Relic Flow

[App page](https://appshunter.io/ios/app/relic-flow/id6499490810)

Generate unique Lo-Fi rhythms, noise patterns, and drum loops using advanced synthesis algorithms. Explore billions of sound samples with intuitive controls and real-time audio recording. Perfect for musicians and sound designers seeking endless creative possibilities.

**Highlights:** Lo-Fi rhythm and drum loop generation, Billions of unique sound samples, Real-time audio recording to WAV, Multiple input methods (on-screen, PC keyboard, MIDI), Export to WAV, SunVox, and text clipboard, iOS Audio Unit Extension (AUv3) support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Combustor free?

Combustor costs $4.99, with no in-app purchases.

### Is Relic Flow free?

Relic Flow costs $1.99, with no in-app purchases.

### Which has better reviews, Combustor or Relic Flow?

Relic Flow is rated higher. Combustor averages 4.7 out of 5 from 19 ratings, while Relic Flow averages 4.8 from 26 ratings.

### Do Combustor or Relic Flow have ads?

Neither Combustor nor Relic Flow shows ads.

### Which is updated more often, Combustor or Relic Flow?

Combustor ships an update every 2 months, and Relic Flow every 17 months. Most recently, Combustor was updated on October 8, 2026 and Relic Flow on October 13, 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.*