Comparison

FAC Transient vs TB Compressor

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

Head to head
About

FAC Transient

This app offers precise control over the attack and sustain stages of your instruments. It allows for subtle to drastic sonic shaping, suitable for drums, guitars, bass, vocals, and more. Design the perfect sound for your mix with advanced detection and envelope controls.

Highlights
  • Precise attack and sustain control
  • Versatile instrument shaping
  • Subtle to drastic sonic changes
  • Fine control of detection circuit
  • Three envelope controls
  • Adjustable depth and duration
Read full description

FAC Transient as is suggested by the name is an outstanding dynamics processor providing precise design and control of the attack and sustain stages of your instruments. Transient designers or shapers are often associated with drum enhancements and only the best of them are versatile enough to suit most of the scenarios. Of course, you know that FAC takes pride in ensuring versatility in its product line, providing subtle to drastic changes. FAC Transient is no exception to the rule! To meet this objective and to be ready for all the situations: drums, guitars, bass, vocal and much more. FAC Transient includes, in addition to the classic amplification or attenuation of the attack and sustain portion of your instrument, a fine control of the detection circuit involved in the processing. Without going into technical details, there are three envelopes built from their respective detection circuits. The first one is the contour of the input signal, this includes similar processing available in Maxima and brings you control of the treshold, time and detector algorithm. The second and third one define the contour of the attack and sustain portions and brings you a total control of the depth and duration of each stage. FAC Transient gives you all you need to design the shape of your instruments and provides them the place they deserve in your mix.

About

TB Compressor

This professional audio plugin offers mastering-grade compression and dynamics processing for iOS devices. It features advanced controls like soft knee, parallel, upward/downward, and band-limited compression, with real-time visual feedback and an interactive interface.

Highlights
  • Mastering-grade compression
  • Upward and downward compression
  • External side-chain input
  • Band-limited and spatially selective compression
  • Real-time interactive display
  • Audition function for compressor and side chain
  • Integrated spectrum analyzer
Read full description

Say Hi! to your new favourite iOS compressor AUv3 plugin! ToneBoosters Compressor is an AUv3 plugin for professional, mastering-grade compression and dynamics processing. This flexible plug-in has all the features you will ever need, such as: - Soft knee compression - Parallel compression - Upward and downward compression - External side-chain input (if supported by the host) - Band-limited compression - Spatially selective compression This compressor is suitable for every compression task and beyond: - Track compression - Bus and master bus compression - De-essing and de-harshing using the band-limited compression feature The user interface shows compression in action, with a real-time and interactive display of levels, gains and curves. Assisted sliders provide guidance to accurately adjust threshold, makeup and range parameters. Want to hear what signal elements are affected by compression? Hit the audition button and listen to everything that is changed by the compressor in isolation. The side-chain editor allows you to adjust the frequency response of the side chain, and has an integrated spectrum analyzer. You can select which channels the side chain listens to, including selection of mid or side channels. Obviously we have provided an audition button for the side chain as well! Imagine you could just compress the mid or side channel, and apply compression to a specific frequency range only. Dynamically make space for elements without having to compress the full mix; de-ess those sibilant vocals in the mid channel; soothe those harsh frequencies; the possibilities are endless. This is all possible with the compression zone feature. The ToneBoosters Compressor app captures the microphone (or external sound card) input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters Compressor will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - The same professional sound as the acclaimed desktop version - Ultra-low harmonic distortion, even with very short attack and release times (THD less than -100dB at 1kHz, depending on the selected compression mode) - Full-fledged side-chain equalizer - Audition function for compressor and side chain - Integrated spectrum analyzer for output and side chain - Variable release curve shape and release time - Upward and downward compression - Signal-adaptive release - Auto make up - Range parameter to limit the amount of compression - Dry/wet (amount) control for parallel compression - Zero latency (for live use) or lookahead mode (for studio use) - Interactive user interface with assisted sliders, curve and gain visualization - Undo/redo, and A/B comparison - Color themes for the user interface - Max screen support in Garageband - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.

Screenshots

FAC Transient4 screens
TB Compressor4 screens

Verdict

The call

The clearest difference is update cadence: TB Compressor at every 2 months against FAC Transient's every 4 months. TB Compressor also leads on price ($8.99 vs $9.99). FAC Transient's advantage is iOS requirement (10.0 vs 13.0). 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

CostPrice · In-app purchases · Ads · Monetization

FAC Transient costs $9.99 and TB Compressor $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for FAC Transient against 4.8 for TB Compressor. Both are backed by a comparable volume of ratings — 71 and 24 respectively. Written reviews are what separate them: 87% of FAC Transient's written reviews are positive against 82% of TB Compressor's.

UpkeepUpdate frequency

FAC Transient ships an update every 4 months, TB Compressor every 2 months. The most recent releases landed on September 25, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
FAC Transient versus TB Compressor: the parameters behind the verdict, then further details
ParameterFAC TransientTB Compressor
Price$9.99$8.99 — better
Rating4.8 (71 ratings)4.8 (24 ratings)
Positive reviews87.0% of reviews — better82.4% of reviews
Number of ratings71 — better24
Update frequencyEvery 4 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better13.0
Further details — not scored
Size19 MB11 MB
Age rating4+4+
DeveloperFrederic CorvestToneBoosters

Customer experience

FAC Transient

All ratings71 ratings
Positive93.0%
Neutral2.8%
Negative4.2%
Written reviews23 reviews
Positive87.0%
Neutral4.3%
Negative8.7%

TB Compressor

All ratings24 ratings
Positive95.8%
Neutral0.0%
Negative4.2%
Written reviews17 reviews
Positive82.4%
Neutral0.0%
Negative17.6%

In-app purchases

None

FAC Transient

No in-app purchases

None

TB Compressor

No in-app purchases

Questions

Is FAC Transient free?
FAC Transient costs $9.99, with no in-app purchases.
Is TB Compressor free?
TB Compressor costs $8.99, with no in-app purchases.
Which has better reviews, FAC Transient or TB Compressor?
FAC Transient and TB Compressor are both rated 4.8 out of 5 on the App Store, from 71 and 24 ratings respectively.
Do FAC Transient or TB Compressor have ads?
Neither FAC Transient nor TB Compressor shows ads.
Which is updated more often, FAC Transient or TB Compressor?
FAC Transient ships an update every 4 months, and TB Compressor every 2 months. Most recently, FAC Transient was updated on September 25, 2026 and TB Compressor on September 23, 2026.

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