Comparison

K7D vs FabFilter Pro

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

Head to head
About

K7D

This app offers a vintage tape delay effect with analog emulation and modern controls. It recreates classic hardware echo machines for a warm, characterful sound. Use it standalone or as an AUv3 plugin in iOS DAWs.

Highlights
  • Analog modeled dual playhead delay
  • Modeled microphone input with saturation
  • Normal and Ping Pong modes
  • High pass and Low pass feedback filters
  • Powerful LFO time modulation
  • BPM syncable delay time
  • MIDI delay time modulation
Features
Read full description

K7D is a powerful and affordable, vintage tape delay effect plugin for iOS. K7D recreates the hardware echo machines of the past using Imaginando’s signature style of obsessive analog emulation, but with an enhanced level of control from a sleek, modern interface. Using this approach allows a whole new world of creative possibilities, while still retaining a warm, full-bodied analog sound, bursting with character and personality. To give K7D it’s distinctive analog flavour, we studied and analysed the tiny details of what makes classic hardware delays great, and painstakingly recreated every subtle nuance for a fantastically authentic sound. Available as a standalone app and audio unit plugin, you can use it digital audio stations for iOS such as Garage Band, AUM, Cubasis, Auria, Audiobus, etc. Features - 1ms to 1 sec. dual playhead analog modeled delay with noise, tape distortion and mechanical vibration models - Modeled microphone input with pre-amp saturation - Normal and Ping Pong modes - Optimized gain staging and saturation algorithms for very musical results - Delay time spread between heads and stereo width control - High pass and Low pass filter on feedback path - Powerful LFO bipolar time modulation with multiple waveforms (sine, triangular, saw, square, sample and hold and filtered sample and hold) and possibility of inverted LFO phase on second play head (for added stereo imaging) - Delay time syncable with BPM - Possibility of delay time modulation via incoming midi notes - Oscilloscope visualisation of audio waveform and LFO waveform - Built-in patch manager - Audiounit compatible

About

FabFilter Pro

This professional audio plug-in offers a high-quality equalizer with up to 24 bands, featuring dynamic EQ, linear phase processing, and an intuitive interface. It allows for precise sound shaping with advanced features like spectrum analysis and EQ matching.

Highlights
  • Up to 24 bands with diverse filter types
  • Dynamic EQ for every band
  • Natural Phase and Linear Phase processing
  • Real-time spectrum analyzer with collision detection
  • Spectrum Grab for direct adjustment
  • EQ Match for tonal characteristic transfer
  • Per-band stereo, left, right, mid, or side mode
Features
Read full description

FabFilter Pro-Q 3 is a top-quality EQ plug-in with up to 24 bands, perfect analog modeling, dynamic EQ, linear phase processing, and a gorgeous interface with unrivalled ease of use. With its unique Natural Phase mode, it matches both the magnitude and phase response of analog EQing perfectly. Innovative features like Spectrum Grab and collision detection together with its intelligent interactive EQ display make Pro-Q 3 an absolute joy to use. The Pro-Q 3 app filters the microphone input and plays it back in real-time. To use Pro-Q 3 as a plug-in, you need an AUv3-compatible host app like Auria, AUM or Cubasis. Pro-Q 3 will appear in the list of Audio Unit extensions for effect plug-ins in the host app. Key features: - Professional mastering-grade EQ plugin with exceptional sound quality - Up to 24 bands with a huge range of filter types - (New) Dynamic EQ option for every band - Filter shapes: Bell, Notch, High/Low Shelf, High/Low Cut, Band Pass, Tilt Shelf, Flat Tilt (New) - 6-96dB/octave slopes for all filter types - (New) Additional Brickwall slope for the High Cut and Low Cut filters - (New) Per-band Stereo, Left, Right, Mid or Side mode - Zero Latency, Natural Phase and Linear Phase processing modes - Powerful real-time spectrum analyzer - (New) External spectrum visualization from any other Pro-Q 3 instance in the session, including collision detection - Spectrum Grab: grab and adjust a peak directly in the spectrum analyzer (Improved) - EQ Match for imposing the tonal characteristics of one signal on another - Extremely efficient processing and low memory usage - Intelligent multiband selection and editing - Intelligent band solo mode - Piano Display switches the frequency scale to musical note values - Separate Mastering (3/6dB) and Mixing (12/30dB) display ranges - Save, restore and organize presets - Optional Gain-Q interaction - Auto Gain and Gain Scale - Phase Invert option to change polarity - Large output level meter with peak level readout - MIDI Learn with option to control the currently active band - Undo/redo and A/B comparison "Pro-Q 3 is a wonderful update to an (arguably) already class-leading equalizer. The best just got better! Verdict: 10/10!" — Future Music Magazine "Pro-Q 3 is unarguably one of the finest EQ plug-ins around. [...]. Outstanding! Verdict: 10/10!" — Computer Music Magazine

Screenshots

K7D2 screens

Verdict

The call

The clearest difference is price: K7D at $3.99 against FabFilter Pro's $29.99. K7D also leads on update cadence (every 3 months vs every 5 months). FabFilter Pro's advantage is iOS requirement (14.0 vs 17.0). 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

K7D costs $3.99 and FabFilter Pro $29.99 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 — 4.6 for K7D against 4.7 for FabFilter Pro. Both are backed by a comparable volume of ratings — 79 and 47 respectively. Written reviews are what separate them: 80% of K7D's written reviews are positive against 78% of FabFilter Pro's.

UpkeepUpdate frequency

K7D ships an update every 3 months, FabFilter Pro every 5 months. The most recent releases landed on October 29, 2026 and October 23, 2026 respectively.

Scorecard3 real differences · 7 level
K7D versus FabFilter Pro: the parameters behind the verdict, then further details
ParameterK7DFabFilter Pro
Price$3.99 — better$29.99
Rating4.6 (79 ratings)4.7 (47 ratings) — better
Positive reviews79.5% of reviews — better77.8% of reviews
Number of ratings79 — better47
Update frequencyEvery 3 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad — betteriPad
Requires iOS17.014.0 — better
Further details — not scored
Size113 MB5 MB
Age rating4+4+
DeveloperImaginando LdaFabFilter

Customer experience

K7D

All ratings79 ratings
Positive87.3%
Neutral6.3%
Negative6.3%
Written reviews44 reviews
Positive79.5%
Neutral9.1%
Negative11.4%

FabFilter Pro

All ratings47 ratings
Positive91.5%
Neutral2.1%
Negative6.4%
Written reviews27 reviews
Positive77.8%
Neutral7.4%
Negative14.8%

Bugs and requests

K7D

Reported bugs

8 issues
  • App crashing with many instruments
  • Project crashes and data loss
  • App not opening after crashes
  • App deleting progress
  • Randomiser not working
Show 3 more
  • App will not load
  • Digital pops and clicks with Audiobus 3
  • Dry signal only in one ear with stereo input

Requested features

9 requests
  • Fix background audio standalone
  • Fix randomiser feature
  • Improve CPU efficiency
  • Make iPad and iPhone versions compatible
  • Add reverse playback option
Show 4 more
  • Allow MIDI assignment for knobs/functions
  • Improve input selection for interfaces
  • Update for Audiobus 3 compatibility
  • Make UI elements larger and more visible

FabFilter Pro

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

K7D

No in-app purchases

None

FabFilter Pro

No in-app purchases

Questions

Is K7D free?
K7D costs $3.99, with no in-app purchases.
Is FabFilter Pro free?
FabFilter Pro costs $29.99, with no in-app purchases.
Which has better reviews, K7D or FabFilter Pro?
FabFilter Pro is rated higher. K7D averages 4.6 out of 5 from 79 ratings, while FabFilter Pro averages 4.7 from 47 ratings.
Do K7D or FabFilter Pro have ads?
Neither K7D nor FabFilter Pro shows ads.
Which is updated more often, K7D or FabFilter Pro?
K7D ships an update every 3 months, and FabFilter Pro every 5 months. Most recently, K7D was updated on October 29, 2026 and FabFilter Pro on October 23, 2026.

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