# BTS FX vs Nulltrack

The clearest difference is update cadence: BTS FX at every 2 days against Nulltrack's every 9 days. BTS FX also leads on chart position (#197 vs unranked) and device support (3 vs 1). Nulltrack's advantage is price ($7.99 vs $9.99). On ads, in-app purchases and monetization model there is nothing between them.

BTS FX costs $9.99 and Nulltrack $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BTS FX ships an update every 2 days, Nulltrack every 9 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | BTS FX | Nulltrack |
| --- | --- | --- |
| Price | $9.99 | **$7.99** |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/bts-fx/id6450247370/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 9 days |
| Monetization | Paid | Paid |
| Best chart rank | **#197** | — |
| Size | 25 MB | 17 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dmytro Kiro](https://appshunter.io/developer/1621893756) | [DECTET LLC](https://appshunter.io/developer/6780079930) |

## What reviewers say

### BTS FX

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

**Currently charting:** #197 Top Paid · Music (US App Store)

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, Vision Pro support

**In-app purchases:** none


### Nulltrack

[App page](https://appshunter.io/ios/app/nulltrack/id6780079928)

This mobile digital audio workstation offers a unique, grid-based approach to music creation, inspired by classic trackers. It includes built-in synths, a sampler, extensive modulation options, and mixing tools.

**Highlights:** AUv3 plugin support, Two built-in synthesizers, Built-in sampler, Extensive modulation options, Mixing features with track faders, Groove tables for swing/playback, Pattern locking to scales

**In-app purchases:** none


## Frequently asked questions

### Is BTS FX free?

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

### Is Nulltrack free?

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

### Do BTS FX or Nulltrack have ads?

Neither BTS FX nor Nulltrack shows ads.

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

BTS FX ships an update every 2 days, and Nulltrack every 9 days. Most recently, BTS FX was updated on November 3, 2026 and Nulltrack on November 5, 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.*