Comparison

bitcrust vs Raw Byte Audio Machine

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

Head to head
About

bitcrust

This application offers a polyphonic synthesizer with a SID-style voice architecture, featuring multiple oscillators, ring modulation, and hard sync. It provides extensive modulation capabilities and a post-synthesis effects rack, extending its sonic range beyond traditional chip synths.

Highlights
  • 12-voice polyphony
  • 3 oscillators per voice with SID-style behavior
  • Extensive modulation matrix
  • 6-slot post-SID FX rack
  • 16-step sequencer and arpeggiator
  • AUv3 and Standalone support
Features
Read full description

bitcrust is a polyphonic synthesizer built around a SID-style voice architecture: three oscillators per voice, up to twelve voices, with ring mod, hard sync, and the pulse-width behaviour that defined a generation of 8-bit sound. The DSP is an in-house, clean-room implementation written from the public MOS 6581 register map and general DSP literature. It's not an emulator port, so bitcrust sounds SID-adjacent without inheriting the license constraints that keep most SID-inspired tools off the major app stores. Sonically it sits between a chip synth and a modern subtractive. The voice core still does gritty arp basses, zap leads and 8-bit percussion, but the architecture around it (three LFOs, a per-voice mod envelope, an 8-slot modulation matrix, and a 6-slot post-SID FX rack with drive, bitcrusher, tempo-synced delay, chorus, reverb, compressor and limiter) pushes it into pad, keys and texture territory. WHAT THIS PURCHASE INCLUDES Universal Purchase: one price buys the Mac app plus the iPad version (Standalone and AUv3). On the Mac, the App Store build is the Standalone app only. No AU, no VST3: the Mac App Store doesn't distribute plugin formats. AU and VST3 versions are available separately; details at anode-labs.com/bitcrust. The iPad build is a co-equal target, not a downscale. The full 179-preset factory library, all 14 themes, and the complete mod matrix and FX rack ship on both platforms. • Voice core: 12-voice polyphony, 3 oscillators per voice, SID-style triangle / saw / pulse / noise with hard sync and ring mod, per-VCO ADSR • Filter: global VCF (LP / BP / HP) with live curve, selectable 6581 / 8580 chip model, Vintage vs. Modern oscillator mode • Modulation: 3 global LFOs (7 shapes, host-sync or Hz), per-voice mod envelope, 8-slot matrix, MIDI sources (velocity, poly AT, channel AT, mod wheel, pitch bend) • FX rack: 6 slots, drag-to-reorder, per-slot bypass / mix; Drive (5 modes), Bitcrusher, Delay (tempo-sync), Chorus, Reverb, Compressor, Limiter. Every FX parameter is a modulation destination. • MIDI: 16-step sequencer, arpeggiator (Up / Down / UpDown / Random, 6 rate divisions, octave range), MIDI Learn on every knob, note Hold • Presets: 179 factory patches across 10 groups, full-metadata save (author, description, tags), Preset Preview audition without committing, A/B snapshot compare, XML import / export • UI: 6-tab navigation, 14 themes with optional phosphor / CRT overlays, monitor strip (oscilloscope, vectorscope, FFT spectrum, 3D spectrogram, stereo field), QWERTY note typing from any tab Mac: Standalone app, universal binary (Apple Silicon + Intel), macOS 12 (Monterey) or later. iPad: AUv3 extension plus a Standalone for headphone jamming. In-DAW use on iPad needs an AUv3 host (GarageBand, Logic Pro for iPad, AUM, Cubasis and so on). Support: https://anode-labs.com/bitcrust · support@anode-labs.com Privacy policy: https://anode-labs.com/privacy

About

Raw Byte Audio Machine

This app generates complex musical patterns using a single sawtooth wave and a powerful expression engine. It supports binary and bitwise operations to create rhythms, harmonies, and melodies. Operates as a standalone app or an AUv3 instrument plugin.

Highlights
  • Sawtooth wave synthesis
  • Expression engine for sound design
  • Binary and bitwise operations
  • Rhythm, harmony, and melody generation
  • Standalone app
  • AUv3 instrument plugin
Features
Read full description

The Raw Byte Audio Machine allows the user to operate on a constant sawtooth wave that is calculated against the assigned sample rate and bit-depth. With each sample, the counter "t" increments by 1. Your expression is evaluated and the lowest bits become a PCM audio sample. Expressions allow for binary arithmetic like addition, subtraction, division, and modulo; and bitwise operations like AND/OR/NOT and bit shifting. With these combinations of tools, a single expression can yield tremendous musical results in complex rhythms, harmonies, and melodies, all while operating on a single sawtooth wave. Operates as a standalone app or AUv3 instrument plugin.

Screenshots

Raw Byte Audio Machine4 screens

Verdict

The call

The clearest difference is rating: Raw Byte Audio Machine at 5.0 against bitcrust's 4.4. Raw Byte Audio Machine also leads on price ($0.99 vs $1.99). On ratings volume, update cadence, ads and in-app purchases 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

bitcrust costs $1.99 and Raw Byte Audio Machine $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Raw Byte Audio Machine holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

UpkeepUpdate frequency

bitcrust ships an update every 3 days, Raw Byte Audio Machine every 6 days. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.

Scorecard2 real differences · 8 level
bitcrust versus Raw Byte Audio Machine: the parameters behind the verdict, then further details
ParameterbitcrustRaw Byte Audio Machine
Price$1.99$0.99 — better
Rating4.4 (7 ratings)5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings7 — better4
Update frequencyEvery 3 days — betterEvery 6 days
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPad, MaciPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size16 MB2 MB
Age rating4+4+
DeveloperMichele CasertaCallback Audio, LLC

Customer experience

bitcrust

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%

Raw Byte Audio Machine

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

bitcrust

No in-app purchases

None

Raw Byte Audio Machine

No in-app purchases

Questions

Is bitcrust free?
bitcrust costs $1.99, with no in-app purchases.
Is Raw Byte Audio Machine free?
Raw Byte Audio Machine costs $0.99, with no in-app purchases.
Which has better reviews, bitcrust or Raw Byte Audio Machine?
Raw Byte Audio Machine is rated higher. bitcrust averages 4.4 out of 5 from 7 ratings, while Raw Byte Audio Machine averages 5.0 from 4 ratings.
Do bitcrust or Raw Byte Audio Machine have ads?
Neither bitcrust nor Raw Byte Audio Machine shows ads.
Which is updated more often, bitcrust or Raw Byte Audio Machine?
bitcrust ships an update every 3 days, and Raw Byte Audio Machine every 6 days. Most recently, bitcrust was updated on October 1, 2026 and Raw Byte Audio Machine on September 23, 2026.

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