Comparison

Splitonic vs Callback Freeverb

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

Head to head
About

Splitonic

Features
Read full description

Splitonic is an AUv3 audio unit for iOS and macOS. It is a filter based on the Fourier spectrum of the input signal and can be used to split the sound in a harmonic and a percussive component. Ideal for remixing when no separate stems are available. Features: - AUv3 Plugin for iOS & macOS. - Spectrogram decomposition: Splits an audio signal into controllable pitched and transient energy layers. - Real time processing: Low-latency controllable by the user. - Kernel dimensions: Adjustable horizontal (time) and vertical (frequency) median filter sizes. - Separation threshold: Configurable threshold to trade off separation isolation against musical artifacts. - Three-Way Separation: Isolates an additional "residual" or noise component to capture background hiss, vocals, or applause. - Preset system: with factory and user presets, plus import/export. - Demo mode available: purchase to unlock full version. - Optimized layout: for portrait and landscape orientations.

About

Callback Freeverb

This app offers a classic algorithmic reverb effect based on the Freeverb algorithm. It adds depth, space, and atmosphere to audio sources, creating lush, spacious ambience. Designed for mono use, it provides a smooth, musical reverb tail suitable for vocals and synthesizers.

Highlights
  • Classic Freeverb algorithm
  • Schroeder/Moorer reverb topology
  • Comb and allpass filters
  • Mono operation
  • Adds depth and space to audio
  • Smooth, musical reverb tail
Features
Read full description

A classic algorithmic reverb effect based on the Freeverb algorithm by Jezar at Dreampoint. A Freeverb-style Schroeder/Moorer reverb based on the classic 8-comb + 4-allpass topology, with simplified controls and no stereo spread. This reverb creates lush, spacious ambience through a network of comb and allpass filters. Freeverb is widely used in electronic music production, ambient music, and sound design to add depth, space, and atmosphere to audio sources. The algorithm provides a smooth, musical reverb tail that works well on everything from vocals to synthesizers. This reverb only functions in mono and provides no stereo imaging, and the user can expect the same behavior as a classic Freeverb implementation otherwise.

Screenshots

Splitonic4 screens
Callback Freeverb4 screens

Verdict

The call

The clearest difference is in-app purchases: Callback Freeverb at none against Splitonic's 1. Splitonic's advantage is device support (4 vs 2) and iOS requirement (15.6 vs 17.0). On price 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

Both are free to download. Splitonic sells 1 one-off in-app purchase. Callback Freeverb asks for nothing beyond the download.

Scorecard3 real differences · 6 level
Splitonic versus Callback Freeverb: the parameters behind the verdict, then further details
ParameterSplitonicCallback Freeverb
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 2 weeks—
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size10 MB7 MB
Age rating4+4+
DeveloperJan MaesCallback Audio, LLC

In-app purchases

1 purchases

Splitonic

One-time1
  • Splitonic Activation$4.99
None

Callback Freeverb

No in-app purchases

Questions

Is Splitonic free?
Splitonic is free to download, with in-app purchases available.
Is Callback Freeverb free?
Callback Freeverb is free to download, with no in-app purchases.
Do Splitonic or Callback Freeverb have ads?
Neither Splitonic nor Callback Freeverb shows ads.

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