Comparison

BTS FX vs Nulltrack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BTS FX

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
Currently charting
Read full description

BTS FX emerges as a dynamic multi-effect plugin, incorporating a diverse set of modules. Available on as Auv3 audio effect or can be loaded in IAA. App requires compatible Auv3 or IAA host (DAW) to load an effect. Among its Main features are: Pre/Post Moog Ladder Filter Bitcrusher with adjustable Rate and Bit controls Distinctive Distortion Module offering various reshaping algorithms. The plugin boasts a lush Reverb Module with a unique Freeze function , complemented by a Brick-wall Limiter Module and convenient Input/Output Gain adjustments. Additionally the Oversampling module provides 2x, 4x, and 8x factors, featuring both polyphase allpass IIR and FIR versions with latency compensation. Further enhancing its capabilities, BTS includes Stereo/Mode processing and a Parameter Randomiser for added creative exploration. Preset Manager, etc.

About

Nulltrack

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
Read full description

Nulltrack! It's null when you start and a track when you finish! Nulltrack is a tracker and digital audio workstation app for your phone. A different way to make music inspired by LSDJ and the Dirtywave M8. Features: AUv3 plugin support - bring your external synths and effects into your track! Two built-in synthesizers -- A versatile two-oscillator Basic Synth and a feature-rich Bass Synth. A built-in sampler -- record your own samples with your phone's microphone, load your own, or use the built-in samples, set loop points, slice, reverse, etc. Modulation -- Modulate nearly anything with LFOs, AHD / ADSR / drum envelopes, velocity, randomness, and key tracking, filter, panning, and more. Mixing Features -- track faders with solo and mute, 13 built-in effects, sidechain compression Sends -- share effects between tracks Customize your swing/playback with groove tables! Lock your patterns to a built-in scale! ...and much more! New to trackers? They're a fast, grid-based way to write music. Try it out! No ads, no subscription, no in-app-purchases, and no account needed.

Screenshots

BTS FX2 screens
Nulltrack4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard5 real differences · 6 level
BTS FX versus Nulltrack: the parameters behind the verdict, then further details
ParameterBTS FXNulltrack
Price$9.99$7.99 — better
Rating5.0 (3 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings3 — better—
Update frequencyEvery 2 days — betterEvery 9 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#197 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better17.0
Further details — not scored
Size25 MB17 MB
Age rating4+4+
DeveloperDmytro KiroDECTET LLC

Customer experience

BTS FX

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Nulltrack

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BTS FX

No in-app purchases

None

Nulltrack

No in-app purchases

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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