# frekvens vs Combustor

The clearest difference is price: frekvens at $2.99 against Combustor's $4.99. frekvens also leads on iOS requirement (11.0 vs 14.0). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

frekvens costs $2.99 and Combustor $4.99 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 — 4.8 for frekvens against 4.7 for Combustor. Both are backed by a comparable volume of ratings — 21 and 19 respectively. Written reviews are what separate them: 83% of frekvens's written reviews are positive against 80% of Combustor's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | frekvens | Combustor |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | **[4.8 (21 ratings)](https://appshunter.io/ios/app/frekvens/id1062305416/reviews)** | [4.7 (19 ratings)](https://appshunter.io/ios/app/combustor/id6449939349/reviews) |
| Number of ratings | **21** | 19 |
| Positive reviews | **83.3% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | Paid |
| Size | 3 MB | 4 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erik Sigth](https://appshunter.io/developer/385275335) | [BeepStreet](https://appshunter.io/developer/321412321) |

## What reviewers say

### frekvens

[App page](https://appshunter.io/ios/app/frekvens/id1062305416)

This app offers a unique frequency shifter and stereo delay effect. It utilizes single sideband modulation and an infinite impulse response filter for advanced audio manipulation. Additional features include high/low pass filters and an LFO for delay modulation.

**Highlights:** Frequency shifter, Stereo delay, High and low pass filter, LFO for delay modulation, Core MIDI CC input, Audiobus and Inter-App Audio support, Audio Unit extension

**Features:** Vision Pro support

**In-app purchases:** none


### Combustor

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

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


## Frequently asked questions

### Is frekvens free?

frekvens costs $2.99, with no in-app purchases.

### Is Combustor free?

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

### Which has better reviews, frekvens or Combustor?

frekvens is rated higher. frekvens averages 4.8 out of 5 from 21 ratings, while Combustor averages 4.7 from 19 ratings.

### Do frekvens or Combustor have ads?

Neither frekvens nor Combustor shows ads.

### Which is updated more often, frekvens or Combustor?

frekvens ships an update every 2 months, and Combustor every 2 months. Most recently, frekvens was updated on September 25, 2026 and Combustor on September 20, 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.*