Comparison

FabFilter Pro vs CHAPITRE SIX

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

Head to head
About

FabFilter Pro

This advanced audio processing tool offers up to six freely placeable bands for compression and expansion. It features innovative processing modes for transparent, artifact-free sound. Requires a compatible host app to function as a plug-in.

Highlights
  • Up to six freely placed processing bands
  • Dynamic Phase processing for transparent sound
  • Minimum and Linear Phase modes
  • Customizable per-band dynamics controls
  • Adjustable crossover slopes
  • Interactive multiband display
  • Real-time frequency analyzer
Read full description

FabFilter Pro-MB is a versatile multiband dynamics plug-in featuring a uniquely optimized workflow: up to six compression/expansion bands can be placed freely anywhere in the spectrum. High-quality Linear Phase and Minimum Phase processing modes are available, as well as a newly developed Dynamic Phase mode that is even better, offering transparent sound without phase distortion while avoiding linear-phase pre-ringing artefacts. The Pro-MB app filters the microphone input and plays it back in real-time. To use Pro-MB as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-MB will appear in the list of Audio Unit extensions for effect plug-ins in the host app. Key features: - Up to six processing bands, freely placed anywhere in the spectrum - Bands can be easily snapped together to form a traditional crossover system - Unique Dynamic Phase processing mode featuring zero latency, no static phase changes and no pre-ringing artifacts - Excellent Linear Phase processing mode, eliminating audible artifacts when quickly changing crossover frequencies - Minimum Phase processing mode - Handles any form of dynamics processing, from highly transparent compression, limiting and expansion to pumping upward compression and punchy gating - Fully customizable per band: threshold, range, attack, release, output gain, ratio, variable knee, lookahead (up to 20 ms), variable stereo linking, mid- or side-only processing, external side chain input, triggering on a separate frequency range - Steepness of each crossover slope can be freely adjusted between 6 dB/oct and 48 dB/oct - Intelligent, highly program- and frequency-dependent attack and release curves - Unique interactive multiband display, designed for an optimal workflow - Global dry/wet mix from 0% to 200% to easily scale the total effect of the plug-in - High-quality audio processing algorithms with 64-bit internal processing where needed - Up to four times linear-phase oversampling - Accurate and smooth real-time frequency analyzer with pre- and post-processing options and 'freeze' feature - Precise output metering - Undo/redo and A/B comparison "Making multiband compression/expansion easier and more flexible than ever, FabFilter Pro-MB is beautifully designed and sounds superb. Verdict: 9/10!" — Computer Music Magazine "FabFilter Pro-MB is well executed on every level from the intuitive and attractive interface, to the brilliant sound quality." — FutureMusic

About

CHAPITRE SIX

Features
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La radio de la collection CHAPITRE SIX

Screenshots

CHAPITRE SIX2 screens

Verdict

The call

The clearest difference is price: CHAPITRE SIX at Free against FabFilter Pro's $39.99. CHAPITRE SIX also leads on device support (4 vs 1) and iOS requirement (9.0 vs 14.0). On 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

CHAPITRE SIX is free to download; FabFilter Pro costs $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 9 months. The most recent releases landed on July 5, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
FabFilter Pro versus CHAPITRE SIX: the parameters behind the verdict, then further details
ParameterFabFilter ProCHAPITRE SIX
Price$39.99Free — better
Rating4.8 (20 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings20 — better—
Update frequencyEvery 9 monthsEvery 9 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPadiPhone, iPod, Apple TV, Apple Watch — better
Requires iOS14.09.0 — better
Further details — not scored
Size5 MB17 MB
Age rating4+17+
DeveloperFabFilterMAISON SERIEUSE

In-app purchases

None

FabFilter Pro

No in-app purchases

None

CHAPITRE SIX

No in-app purchases

Questions

Is FabFilter Pro free?
FabFilter Pro costs $39.99, with no in-app purchases.
Is CHAPITRE SIX free?
CHAPITRE SIX is free to download, with no in-app purchases.
Do FabFilter Pro or CHAPITRE SIX have ads?
Neither FabFilter Pro nor CHAPITRE SIX shows ads.
Which is updated more often, FabFilter Pro or CHAPITRE SIX?
FabFilter Pro ships an update every 9 months, and CHAPITRE SIX every 9 months. Most recently, FabFilter Pro was updated on July 5, 2026 and CHAPITRE SIX on September 10, 2026.

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