# Spinn vs BTS FX

The clearest difference is rating: BTS FX at 5.0 against Spinn's 4.5. BTS FX also leads on update cadence (every 2 days vs every 8 months) and price ($9.99 vs $15.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Spinn costs $15.99 and BTS FX $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BTS FX holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively.

Spinn ships an update every 8 months, BTS FX every 2 days. The most recent releases landed on September 30, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Spinn | BTS FX |
| --- | --- | --- |
| Price | $15.99 | **$9.99** |
| Rating | [4.5 (4 ratings)](https://appshunter.io/ios/app/spinn-multiband-modulator/id1508181276/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bts-fx/id6450247370/reviews)** |
| Number of ratings | **4** | 3 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 days** |
| Monetization | Paid | Paid |
| Size | 16 MB | 25 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Klevgrand Produkter AB](https://appshunter.io/developer/1118902192) | [Dmytro Kiro](https://appshunter.io/developer/1621893756) |

## What reviewers say

### Spinn

[App page](https://appshunter.io/ios/app/spinn-multiband-modulator/id1508181276)

This app offers a unique 4-band rotating modulation effect with individual rotor controls, customizable acceleration, and velocity-sensitive speed adjustments. It includes built-in amp modeling and room simulation for a versatile audio experience.

**Highlights:** 4-band rotating modulation, Individual rotor speed controls, Adjustable acceleration/deceleration, Velocity-sensitive speed, Custom amp modeling, Room simulation, AUv3 plugin support

**In-app purchases:** none


### BTS FX

[App page](https://appshunter.io/ios/app/bts-fx/id6450247370)

This audio effect plugin offers a versatile multi-effect suite for music production. It features a bitcrusher, distortion, reverb with a freeze function, and a limiter, all controllable within compatible DAWs.

**Highlights:** Bitcrusher with adjustable rate and bit, Distortion module with various algorithms, Reverb module with freeze function, Brick-wall limiter, Oversampling module (2x, 4x, 8x), Stereo/Mode processing, Parameter randomizer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spinn free?

Spinn costs $15.99, with no in-app purchases.

### Is BTS FX free?

BTS FX costs $9.99, with no in-app purchases.

### Which has better reviews, Spinn or BTS FX?

BTS FX is rated higher. Spinn averages 4.5 out of 5 from 4 ratings, while BTS FX averages 5.0 from 3 ratings.

### Do Spinn or BTS FX have ads?

Neither Spinn nor BTS FX shows ads.

### Which is updated more often, Spinn or BTS FX?

Spinn ships an update every 8 months, and BTS FX every 2 days. Most recently, Spinn was updated on September 30, 2026 and BTS FX on September 29, 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.*