Comparison

AudioReverb vs ChordKeys

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

ChordKeys

Features
Read full description

ChordKeys — Identify, learn, and play piano chords Press any keys on the vChordKeys helps piano beginners and intermediates make sense of chord charts — the kind you find on popular sites or copied from your guitarist friend. — CHORD IDENTIFICATION Press any combination of keys (on the on-screen keyboard, on a connected MIDI keyboard, or even via the microphone) and ChordKeys identifies the chord. Triads, 7ths, extended, sus, add, power chords — 46 qualities in total, with inversions shown in slash notation (F/A = F with A in the bass). — CHORD CHART PLAYER Build a personal library of songs in ChordPro format. Paste a chord chart from any site — ChordKeys automatically converts the common online style (chords above the lyrics) into the canonical inline format. Each chord becomes a tappable diagram with an inversion picker, so you can find a voicing that flows nicely from the previous one. Smooth auto-scroll follows the BPM you set, 120Hz on iPad Pro. Or Guided Practice (MIDI), which waits for you to play the chord so you don't lose your place in the chart. — FREE PRACTICE Virtual keyboard with a realistic layout, real Grand Piano samples, and slide-to-play — drag a finger across the keys for that satisfying glissando moment. — BUILT FOR LEARNING • Notes labeled in letters (C D E F G A B) or solfège (Dó Ré Mi Fá Sol Lá Si) • Transpose any song ±12 semitones • Per-song notes (the kind of tips you pick up from online tutorials), a field for the YouTube/Spotify link of the original recording, and a separate field for your favorite tutorial (with built-in video player) • Syncs via iCloud across all your devices • Export individual songs or your entire library — to share or keep a safe backup • Three sample songs (public domain) to get you started — NO TRACKING, NO ADS ChordKeys is a focused tool, not a content platform. No data collection, no ads, no upsells. Your library is yours, synced through your iCloud account.

Screenshots

AudioReverb3 screens
ChordKeys4 screens

Verdict

The call

The clearest difference is update cadence: ChordKeys at every 5 weeks against AudioReverb's every 4 months. ChordKeys also leads on price ($0.99 vs $1.99). AudioReverb's advantage is iOS requirement (12.0 vs 26.2). On ads, in-app purchases 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 ChordKeys $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

AudioReverb ships an update every 4 months, ChordKeys every 5 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 7 level
AudioReverb versus ChordKeys: the parameters behind the verdict, then further details
ParameterAudioReverbChordKeys
Price$1.99$0.99 — better
Rating3.7 (23 ratings) — better—
Positive reviews64.9% of reviews—
Number of ratings23 — better—
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better26.2
Further details — not scored
Size14 MB10 MB
Age rating4+4+
DeveloperHarry GohsGiacomo Cacciola

In-app purchases

None

AudioReverb

No in-app purchases

None

ChordKeys

No in-app purchases

Questions

Is AudioReverb free?
AudioReverb costs $1.99, with no in-app purchases.
Is ChordKeys free?
ChordKeys costs $0.99, with no in-app purchases.
Do AudioReverb or ChordKeys have ads?
Neither AudioReverb nor ChordKeys shows ads.
Which is updated more often, AudioReverb or ChordKeys?
AudioReverb ships an update every 4 months, and ChordKeys every 5 weeks. Most recently, AudioReverb was updated on October 29, 2026 and ChordKeys on October 28, 2026.

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