Comparison

Chromatic Tuner 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

Chromatic Tuner

This app provides accurate chromatic tuning for a wide range of string instruments. It features real-time pitch detection, a clear interface optimized for low-light conditions, and adjustable reference pitch.

Highlights
  • Chromatic tuner for any instrument
  • Real-time pitch detection
  • Precise cents display
  • Frequency display in Hz
  • Adjustable A4 reference pitch
  • Minimal dark interface
Features
Read full description

Chromatic Tuner - BA2 is a clean and accurate chromatic tuner for guitar, bass, ukulele, violin, cello, mandolin and other string instruments. Tune instantly with real-time pitch detection, cents accuracy, frequency display and adjustable A4 reference pitch. Whether your note is flat, sharp or in tune, Chromatic Tuner - BA2 helps you see it clearly with a simple interface. FEATURES - Chromatic tuner for any instrument - Real-time pitch detection and waveform visualization - Precise cents display - Frequency display in Hz - Adjustable A4 reference pitch - Pitch Pipe - Minimal Dark Interface – Optimized for low-light environments and stage use - Completely free

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

Chromatic Tuner4 screens
Callback Freeverb4 screens

Verdict

The call

Chromatic Tuner and Callback Freeverb are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. 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 — 5.0 for Chromatic Tuner against 5.0 for Callback Freeverb. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

ScorecardNo meaningful differences
Chromatic Tuner versus Callback Freeverb: the parameters behind the verdict, then further details
ParameterChromatic TunerCallback Freeverb
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size3 MB7 MB
Age rating4+4+
DeveloperBaturay KocCallback Audio, LLC

In-app purchases

None

Chromatic Tuner

No in-app purchases

None

Callback Freeverb

No in-app purchases

Questions

Is Chromatic Tuner free?
Chromatic Tuner is free to download, with no in-app purchases.
Is Callback Freeverb free?
Callback Freeverb is free to download, with no in-app purchases.
Which has better reviews, Chromatic Tuner or Callback Freeverb?
Chromatic Tuner and Callback Freeverb are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Chromatic Tuner or Callback Freeverb have ads?
Neither Chromatic Tuner nor Callback Freeverb shows ads.

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