FAC Chorus vs Bit Maestro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FAC Chorus
This app delivers an authentic, lush, and organic chorus effect with analog-style circuitry. It offers versatile modulation, from subtle doubling to rich swirling sounds, and can function as a chorus, flanger, or vibrato. Expanded controls and feedback options provide deep sonic shaping for professional music production.
- Authentic analog-style bucket brigade circuitry
- Subtle doubling to rich swirling modulation
- Chorus, Flanger, or Vibrato modes
- Expanded controls with multiple characters
- Feedback control for flanger-like textures
- AUv3 plugin for iOS, macOS, and Vision Pro
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• Authentic, lush, and organic chorus effect • True analog-style bucket brigade circuitry • A modern reissue of the most iconic hardware units • Ranges from subtle doubling to rich, swirling modulation • Versatile usage: Chorus, Flanger, or Vibrato • Expanded controls with multiple characters and waveforms • Feedback control for rich, flanger-like textures • A favorite chorus in the iOS music community • Advanced Responsive Design, portrait and landscape views • Universal Purchase: AUv3 for iOS (iPad/iPhone), macOS and Vision Pro FAC Chorus brings depth and movement to your sounds with an authentic, lush, and organic character. Built with true analog-style bucket brigade circuitry, this plugin is a modern reissue of some of the most iconic hardware units, faithfully capturing their distinctive tone. The effect ranges from subtle doubling to rich, swirling modulation, covering different uses as a Chorus, Flanger, or Vibrato. The expanded modulation controls, multiple characters, and LFO waveforms allow precise shaping of your sound, giving you complete creative flexibility. In addition, the feedback control adds rich, flanger-like textures for dynamic sonic effects. Under the hood, the plugin uses two individual delay line paths. Each path’s behavior is determined by the character parameter: Thick and BBD provide warm, classic BBD-style tones, while Clean delivers a more transparent tone with greater modulation. This chorus has become a favorite in the iOS music community, combining vintage inspiration with modern control to deliver professional-quality sound in any production. This is an AUv3 Effect and requires a compatible host to work The in-app purchases are for tipping only, the app is fully functional without them The documentation is available at fredantoncorvest.com/FAC_Chorus.html
Bit Maestro
This audio effect plugin allows manipulation of sound at the individual bit level, creating unique digital distortions. It offers advanced control over bit evaluation order and includes filters, a delay, and modulation for enhanced sound design.
- Individual bit manipulation
- Bit evaluation order rearrangement
- Three filter types (LP, LS, HS)
- Integrated delay line
- Modulation panel for evolving sound
- AUv3, MIDI, IAA, and Audiobus support
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Bit Maestro is an AUv3 bit crusher that goes beyond regular bit rate reduction, allowing you to affect and manipulate your sound at the individual bit level. Taking inspiration from the legendary ‘OTO Biscuit’ it enables you to selectively mute or invert individual bits in your audio signal. As it does this it creates distortions in your waveform, introducing a wide range of harmonics. Bit Maestro pushes this concept even further, allowing you for the first time to even rearrange the order in which the bits are evaluated, reassigning their value and giving rise to waveform distortions not previously seen in any distortion module. This sound can be further enhanced in a number of ways. - Three filters are available (low pass, low shelf, high shelf) which can be used to tame or enhance the aggressiveness of the sound. - A delay line to inject a different groove into a bar or provide a basis for interesting mod effects. - A modulation panel to continually evolve your sound and introduce further aliasing effects. The end result is a plugin that can introduce huge depth and power to your sound. One that offers you the nuanced control to design your perfect digital distortion, ranging from subtle warbling to huge crushing sounds that can transform any drum or bass line. Supports: - AUv3 - MIDI control - Inter-app Audio - Audiobus
Screenshots
Verdict
The clearest difference is in-app purchases: Bit Maestro at none against FAC Chorus's 3. Bit Maestro also leads on update cadence (fortnightly vs every 5 months) and price ($4.99 vs $9.99). On rating, review sentiment, ratings volume and ads 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
FAC Chorus costs $9.99 and Bit Maestro $4.99 up front. FAC Chorus sells 3 one-off in-app purchases. Bit Maestro asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for FAC Chorus against 4.8 for Bit Maestro. Both are backed by a comparable volume of ratings — 61 and 26 respectively. Written reviews are what separate them: 95% of FAC Chorus's written reviews are positive against 94% of Bit Maestro's.
FAC Chorus ships an update every 5 months, Bit Maestro fortnightly. The most recent releases landed on October 15, 2026 and October 6, 2026 respectively.
| Parameter | FAC Chorus | Bit Maestro |
|---|---|---|
| Price | $9.99 | $4.99 — better |
| Rating | 4.8 (61 ratings) | 4.8 (26 ratings) |
| Positive reviews | 95.0% of reviews — better | 93.8% of reviews |
| Number of ratings | 61 — better | 26 |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 16.4 | 11.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Frederic Corvest | David Blake |
Customer experience
FAC Chorus
Bit Maestro
In-app purchases
FAC Chorus
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$14.99
Bit Maestro
No in-app purchases









