Comparison

Reverb vs K7D

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

Head to head
About

Reverb

Create a wide range of reverberated ambiences, from realistic rooms to otherworldly spaces. This effect processor offers advanced features like space morphing and "twisting parameters" for experimental sound design. It integrates with other audio apps and supports MIDI control.

Highlights
  • Feedback Delay Network Reverb
  • Space Morphing
  • AudioUnit V3, Audiobus, IAA support
  • Built-in Stereo Sampler
  • MIDI Control
  • Preset Morphing Pad
  • Post FX Chain
Features
Read full description

The Amazing Noises Reverb is a Feedback Delay Network (FDN) Reverb Effect, which can create nice reverberated ambiences, from small rooms to huge buildings. It can also simulate alien and unreal spaces, for your experimental fun! Main Features: + AudioUnit V3, Audiobus and Inter-App Audio support (sender and FX) + Feedback Delay Network Reverb + Space Morphing + Endless Reverberation + "Twisting Parameters": Reactive Walls, Random LFO, Echoes + Built In Stereo Sampler with varispeed + Control Manager LFO for Parameters + Midibus, Virtual Midi and Network: 14 bit NRPN controllers + File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy + Snapshots Presets Morphing Pad + Post Fx Chain: Low-shelf Filter, High-shelf and Compressor Credits: L. van Beethoven: Symphony no. 7, I movement, bars 1-53 https://mediatech.aalto.fi

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

Screenshots

Reverb4 screens
K7D2 screens

Verdict

The call

The clearest difference is ratings volume: K7D at 79 against Reverb's 14. K7D also leads on price ($3.99 vs $4.99). Reverb's advantage is review sentiment (89% vs 80%). On rating, 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

Reverb costs $4.99 and K7D $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

K7D holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: K7D has 79 ratings behind it against 14, so its average is the more settled of the two. Written reviews complicate that: 89% of Reverb's written reviews are positive against 80% of K7D's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Reverb ships an update every 4 months, K7D every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard3 real differences · 7 level
Reverb versus K7D: the parameters behind the verdict, then further details
ParameterReverbK7D
Price$4.99$3.99 — better
Rating4.4 (14 ratings)4.6 (79 ratings) — better
Positive reviews88.9% of reviews — better80.0% of reviews
Number of ratings1479 — better
Update frequencyEvery 4 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size15 MB114 MB
Age rating4+4+
DeveloperAmazing NoisesImaginando Lda

Customer experience

Reverb

All ratings14 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews18 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

K7D

All ratings79 ratings
Positive87.3%
Neutral6.3%
Negative6.3%
Written reviews45 reviews
Positive80.0%
Neutral8.9%
Negative11.1%

Bugs and requests

Reverb

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Reverb

No in-app purchases

None

K7D

No in-app purchases

Questions

Is Reverb free?
Reverb costs $4.99, with no in-app purchases.
Is K7D free?
K7D costs $3.99, with no in-app purchases.
Which has better reviews, Reverb or K7D?
K7D is rated higher. Reverb averages 4.4 out of 5 from 14 ratings, while K7D averages 4.6 from 79 ratings.
Do Reverb or K7D have ads?
Neither Reverb nor K7D shows ads.
Which is updated more often, Reverb or K7D?
Reverb ships an update every 4 months, and K7D every 3 months. Most recently, Reverb was updated on November 1, 2026 and K7D on November 3, 2026.

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