Comparison

iHarmony vs Calmus Remote

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

Head to head
About

iHarmony

This music theory reference app provides instant access to scales, chords, and harmonizations with audio playback. It supports multiple notation systems and offline use, making it a comprehensive tool for musicians of all levels.

Highlights
  • 1500+ scales, chords, and harmonizations
  • Chord harmonizations for every scale
  • Audio playback for every entry
  • Four notation systems
  • Full-text search
  • Offline functionality
Features
Read full description

The ultimate music theory reference for every musician. iHarmony gives you instant access to scales, chords, harmonizations, and notes — all in one beautifully designed app. Whether you're preparing for a jam session, writing a song, studying jazz theory, or doing your music homework, iHarmony has the answer. • 1500+ scales, chords, and harmonizations • Chord harmonizations for every scale • Audio playback for every entry — train your ear while you study • Four notation systems: English (C, D, E), Italian (Do, Re, Mi), German (C, D, H), French (Ut, Re, Mi) • Full-text search — find any scale or chord in seconds • Works offline — no internet required Stop searching the web for: "What notes make up a G# diminished 7 chord?" "What are the degrees of the Bebop Dominant scale?" "What's the harmonization of D# Melodic Minor?" iHarmony answers these instantly. Over 1500 entries covering common and exotic scales alike — from the Lydian b7 to the Neapolitan, from Whole Tone to Hungarian Minor. Designed for guitarists, pianists, composers, music students, and professionals. Perfect for functional analysis of jazz standards, songwriting, and music education. Full VoiceOver and accessibility support. Dark mode supported. A must-have for every musician.

About

Calmus Remote

Create original, royalty-free music using AI and your input. Ideal for film, TV, games, or personal projects. Record audio output directly through the control center.

Highlights
  • AI-powered music composition
  • Royalty-free music generation
  • Input-based music creation
  • Music for media and personal use
  • Direct audio recording
Read full description

Calmus Remote composes original and Royalty-free music based on human input and the use of Artificial Intelligence - Music for movies, TV shows or Games .... and for personal use. The core of Calmus Remote is the CalmusAI brain where the modern composing methods are programmed into the brain using Lisp programming language. NASA has historically used Lisp for artificial intelligence and autonomous systems, most notably in the 1990s Remote Agent project, the first AI system to control a spacecraft. CalmusRemote does not collect or use any musical material from the internet but creates new music based on the input from the user. To record audio output - go to Control Center and press RECORD

Screenshots

iHarmony4 screens
Calmus Remote1 screens

Verdict

The call

The clearest difference is review sentiment: iHarmony at 77% against Calmus Remote's 30%. iHarmony also leads on rating (4.8 vs 4.0) and update cadence (every 5 weeks vs every 3 months). Calmus Remote's advantage is device support (4 vs 2) and price ($1.99 vs $2.99). On ratings volume, ads, in-app purchases and monetization model 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

iHarmony costs $2.99 and Calmus Remote $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

iHarmony holds the better App Store score, 4.8 against 4.0. Both are backed by a comparable volume of ratings — 12 and 6 respectively. Written reviews point the same way: 77% of iHarmony's written reviews are positive against 30% of Calmus Remote's.

UpkeepUpdate frequency

iHarmony ships an update every 5 weeks, Calmus Remote every 3 months. Both last shipped on November 6, 2026.

Scorecard6 real differences · 4 level
iHarmony versus Calmus Remote: the parameters behind the verdict, then further details
ParameteriHarmonyCalmus Remote
Price$2.99$1.99 — better
Rating4.8 (12 ratings) — better4.0 (6 ratings)
Positive reviews77.3% of reviews — better30.0% of reviews
Number of ratings12 — better6
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS26.015.6 — better
Further details — not scored
Size13 MB287 MB
Age rating4+4+
DeveloperAlberto De BortoliErki-tonlist sf

Customer experience

iHarmony

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews110 reviews
Positive77.3%
Neutral10.9%
Negative11.8%

Calmus Remote

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews10 reviews
Positive30.0%
Neutral0.0%
Negative70.0%

Bugs and requests

iHarmony

Reported bugs

19 issues
  • Audio not working on iPhone
  • Database null error
  • Speaker distortion at high volume
  • Playback sounds stilted/uneven
  • Info link works irregularly or doesn't appear
Show 14 more
  • Audio engine buffer fills up quickly
  • Some sounds do not match notes
  • Cb Major scale has wrong pitch
  • App stops working in latest version
  • Dominant 7 chords listed as Major 7
  • Major 7 chords listed as Major 7+
  • Major and Dominant 9 chords incorrect
  • Text is very small in Harmonies section
  • No sound from speakers
  • Audio playback not working after upgrade
  • App is completely empty
  • Some chords have incorrect notation
  • Accidental symbols in wrong place
  • Audio engine buffer fills up quickly

Requested features

40 requests
  • Save favorite scales
  • Add more exotic scales
  • Allow harmonic playback (all notes simultaneously)
  • Provide other theory features (harmonic substitutions, polychords, inversions)
  • Add a search function for chords/scales
Show 35 more
  • Display scales/chords on a staff
  • Add a chord scratch pad for saving/exporting
  • Include minor major seventh chords
  • Add suspended 2 chords and others
  • Option to hear unarpeggiated chords
  • Allow choosing ascending OR descending scale playback
  • Add Roman numeral labelling
  • Interactive circle of fifths
  • Notated examples
  • Include scale formulas
  • Add George Russell Lydian Chromatic Concept scales
  • Zoom functionality or larger font
  • Piano keys indicated
  • Allow controlling playback speed
  • Repeat/loop function for listening
  • Link scales to chords they are used over
  • Show modes associated with chords
  • Search function by typing scale/chord symbols
  • View of chords/scales on a staff
  • North American style chord formatting
  • Better GUI/organizational method
  • Make it a universal app (iPhone/iPad)
  • Separate ascending/descending scale playback
  • Add dominant and altered dominant chords
  • Hear inversions of scales/chord types
  • Nashville # system in harmonies
  • All chords available in notes section
  • Tabs for instruments
  • Easy Beats direction for updates
  • Fix Cb Major scale pitch
  • Show the 8th note/tonic in listening
  • End scales on the ONE
  • Full screen without frames for viewing windows
  • Larger viewing windows
  • Better icon design

Calmus Remote

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

iHarmony

No in-app purchases

None

Calmus Remote

No in-app purchases

Questions

Is iHarmony free?
iHarmony costs $2.99, with no in-app purchases.
Is Calmus Remote free?
Calmus Remote costs $1.99, with no in-app purchases.
Which has better reviews, iHarmony or Calmus Remote?
iHarmony is rated higher. iHarmony averages 4.8 out of 5 from 12 ratings, while Calmus Remote averages 4.0 from 6 ratings.
Do iHarmony or Calmus Remote have ads?
Neither iHarmony nor Calmus Remote shows ads.
Which is updated more often, iHarmony or Calmus Remote?
iHarmony ships an update every 5 weeks, and Calmus Remote every 3 months. Most recently, iHarmony was updated on November 6, 2026 and Calmus Remote on November 6, 2026.

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