Comparison

AudioReverb vs spectwhirl

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

Head to head
About

AudioReverb

Apply studio-quality algorithmic reverberation to your music and audio. This app simulates acoustic spaces and classical reverb algorithms for a realistic sound. Enhance your music library or use it as a professional plugin with compatible hosts.

Highlights
  • Algorithmic reverberation
  • Early reflection modeling
  • 118 factory presets
  • 4-band equalizer
  • AUv3 compatible
  • Audiobus 3 compatible
  • Inter-app audio compatible
Features
Read full description

Studio quality reverb for AUv3 compatible hosts / Audiobus / Inter-app audio and songs from your iTunes music library. AudioReverb is an algorithmic reverberation app which combines the flexibility of vintage algorithmic reverbs with the sonic quality of convolution based reverbs.

 The creation of high quality reverb needs a realistic simulation of the important early reflections together with a smooth and colorless reverberation tail.

 The early reflections are the most important clue for the human ear to get a feeling about the dimension and character of a room. Most algorithmic reverbs offer a number of different algorithms to simulate different natural rooms like chamber, halls or artificial ones like plates.  AudioReverb uses impulse responses from real acoustic spaces and classical reverb algorithms to emulate their acoustical properties.

 The resulting reverberation sets new standards in clarity and sense of space ! Use AudioReverb for enhancing your listening experience with your favourite iTunes songs. Use AudioReverb as professional reverb plugin to improve the quality of any Audiobus or Inter-app audio compatible App. • Smooth reverb tail generation. • Early Reflection Modelling. • 118 factory presets. • 4 Band Equalizer. • AudioUnit for AUv3 compatible hosts. • Inter-app audio compatible effect. • Audiobus 3 compatible as effect. • Reverberate any song in your iTunes library. • Low latency live usage with mic and headphones. • Audio recorder. • Audio file export via pasteboard / open in / e-mail

About

spectwhirl

This audio effect app transforms input sound into new textures and bell-like tones by extracting and manipulating sinewave components. It offers advanced control over delay lines, frequency shifting, and filtering, with gesture recording for parameter automation.

Highlights
  • Sinewave component extraction and grouping
  • Delay lines with feedback
  • Frequency shifter and sample-and-hold effects
  • Configurable filtering
  • Gesture recording for automation
  • Scene saving and management
Features
Read full description

"bells and whistles, literally" spectwhirl is a hybrid spectral audio effect. It can extract and rearrange sinewave components from input signal to make new sound textures and bell-like sounds. * input sound is converted to sinewave components that are divided into 4 groups: harmonic, inharmonic, 12-edo and other * each component is fed into a delay line with feedback * there is a group of frequency shifter and sample-and-hold effects before and after delay lines * each set of sinewave components can be filtered * all the parameters can be instantly automated with gesture recording !!! Please note that this effect consumes much CPU and requires a modern device. ====================== Quick Start: Top row of controls enables different parts of user interface: scenes editor ("scene"), controls switch ("edit") and "zoom" controls When "edit" is switch on, you can show or hide various controls (marked as "ctrl") and switch gesture recording automation for some of them (marked with ">") Main control surface displays sonogram with tracked elements. Colors are set accordingly to the group they are assigned (red-orange-green-blue are for harmonic, inharmonic, 12-edo and others). Each "lane" contains delay time controls. * Triangle facing left is for the start locator, it determines initial delay time * Square moves both start and end locators together * When left locator is first moved you can see the right locator with the same triangle. It shows the end of the selected region, the secondary delay time is determined by the difference between left and right locators * if you drag over the area of the region in a lane, the four-dotted/one circle indicator will change its appearance; this changes the arpeggio mode of the region. If set to leftmost position (one circle) the components go in-sync; if set to maximum value (shown as diagonal line with circles) - components are played sequentially * all settings can be stored as "scene" and multiple scenes can be switched sequentially; there is a set of button to move, add and delete scenes. All scenes will be stored as machine state; it can be exported / imported as a single file or as separate file with current scene in the "setup" view The standalone version always starts with output level set to -70 dB to avoid feedback

Screenshots

AudioReverb3 screens
spectwhirl4 screens

Verdict

The call

The clearest difference is review sentiment: AudioReverb at 65% against spectwhirl's 33%. AudioReverb also leads on price ($1.99 vs $4.99) and ratings volume (23 vs 5). spectwhirl's advantage is update cadence (every 5 weeks vs every 4 months) and rating (4.0 vs 3.7). On ads, in-app purchases, monetization model and device support 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

AudioReverb costs $1.99 and spectwhirl $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

spectwhirl holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 23 and 5 respectively. Written reviews complicate that: 65% of AudioReverb's written reviews are positive against 33% of spectwhirl's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

AudioReverb ships an update every 4 months, spectwhirl every 5 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
AudioReverb versus spectwhirl: the parameters behind the verdict, then further details
ParameterAudioReverbspectwhirl
Price$1.99 — better$4.99
Rating3.7 (23 ratings)4.0 (5 ratings) — better
Positive reviews64.9% of reviews — better33.3% of reviews
Number of ratings23 — better5
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size14 MB7 MB
Age rating4+4+
DeveloperHarry GohsAlexey Nadzharov

Customer experience

AudioReverb

All ratings22 ratings
Positive63.6%
Neutral13.6%
Negative22.7%
Written reviews57 reviews
Positive64.9%
Neutral12.3%
Negative22.8%

spectwhirl

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

In-app purchases

None

AudioReverb

No in-app purchases

None

spectwhirl

No in-app purchases

Questions

Is AudioReverb free?
AudioReverb costs $1.99, with no in-app purchases.
Is spectwhirl free?
spectwhirl costs $4.99, with no in-app purchases.
Which has better reviews, AudioReverb or spectwhirl?
spectwhirl is rated higher. AudioReverb averages 3.7 out of 5 from 23 ratings, while spectwhirl averages 4.0 from 5 ratings.
Do AudioReverb or spectwhirl have ads?
Neither AudioReverb nor spectwhirl shows ads.
Which is updated more often, AudioReverb or spectwhirl?
AudioReverb ships an update every 4 months, and spectwhirl every 5 weeks. Most recently, AudioReverb was updated on November 1, 2026 and spectwhirl on November 3, 2026.

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