Comparison

Harmony Lab vs Chord Invaders

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

Head to head
About

Harmony Lab

Features
Read full description

Create chord progressions and hear them come to life. Harmony Lab is built for exploring harmony in a way that feels clear and immediate. It gives you a space to build progressions, shape how they are played, and understand how everything connects. You can create progressions in multiple ways. Build them manually, generate them from scales, or follow harmonic relationships. Each approach leads to the same goal: turning ideas into sound quickly. Every chord you add is playable instantly. You hear how it fits, how it moves, and how it feels in context. This makes it easy to experiment, adjust, and refine your ideas without breaking flow. Playback is fully customizable. Choose how chords are played using different styles such as up, down, alternating patterns, or more dynamic variations. You can control octave placement and spread notes across multiple octaves to shape the depth of the sound. Rhythm is part of the process. Use built-in patterns or create your own to control how chords are triggered over time. This lets you move beyond static playback and explore groove, timing, and feel. Harmony Lab also gives you control over the details. Adjust note density, introduce probability to create variation, and add humanization to make playback feel more natural. These small changes can completely transform how a progression sounds. You can hear everything across multiple instruments. Switch between piano, guitar, strings, and more to explore different textures and directions. Each instrument gives a new perspective on the same harmonic idea. The interface keeps things focused. You add chords, shape how they are played, and hear the result instantly. Key Features: β€’ Build chord progressions manually/from scales/Using Functional Harmony/Using a text description β€’ Multiple playback styles and patterns β€’ Control octave, range, and note spread β€’ Adjust timing, density, and variation β€’ Add humanization for a more natural feel β€’ Multi-instrument playback β€’ Real-time feedback while editing Harmony Lab works for writing, practice, and exploration. It helps you hear harmony more clearly and turn simple ideas into something more expressive. You explore, listen & create - That’s the core idea behind Melodic Mind. Let music feel natural again. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://melodic-mind.com/privacy-policy

About

Chord Invaders

Features
Read full description

Chord Invaders is a chord-detection game for acoustic and electric guitar. Chord names fall from the top of the screen β€” play the chord on your real guitar before it reaches the bottom and watch it explode. The app listens through your iPhone's microphone and recognizes what you play in real time. Hit chords earn points. Missed chords cost lives. SEVEN LEVELS, ORGANIZED BY KEY β€’ Level 1: G major (G, C, D) β€’ Level 2: G expanded (adds Em) β€’ Level 3: C major (introduces F) β€’ Level 4: D major (introduces Bm barre) β€’ Level 5: E major blues (A, E, B7, C#m) β€’ Level 6: Mixed minor keys (Am, Dm, E, F, G, C) β€’ Level 7: Color chords (7ths, sus chords, Cadd9) PER-CHORD FEEDBACK After each session, see your accuracy per chord, average reaction time, and a personalized recommendation telling you what to practice next. CHORD DIAGRAMS Every level shows the chord shapes β€” finger positions, frets, and barre lines β€” alongside a short note on the music theory behind why those chords are grouped. BUILT-IN TUNER A vertical-bar guitar tuner helps you get in tune before you play. PRIVACY No accounts, no logins, no analytics. Audio is processed entirely on your device and never recorded or transmitted.

Screenshots

Harmony Lab4 screens
Chord Invaders4 screens

Verdict

The call

The clearest difference is update cadence: Chord Invaders at every 4 days against Harmony Lab's every 5 weeks. Chord Invaders also leads on iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Harmony Lab sells 2 in-app purchases, starting at $1.99 per month and Chord Invaders sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Harmony Lab ships an update every 5 weeks, Chord Invaders every 4 days. The most recent releases landed on September 27, 2026 and October 8, 2026 respectively.

Scorecard2 real differences Β· 4 level
Harmony Lab versus Chord Invaders: the parameters behind the verdict, then further details
ParameterHarmony LabChord Invaders
PriceFreeFree
Update frequencyEvery 5 weeksEvery 4 days β€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.615.0 β€” better
Further details β€” not scored
Size29 MB2 MB
Age rating4+4+
DeveloperSean Ray DvirNeerav Mehta

In-app purchases

2 purchases

Harmony Lab

Subscriptions2
  • No Ads$1.991 Month
  • Full Access$4.991 Month
1 purchases

Chord Invaders

One-time1
  • Unlock All Levels$1.99

Questions

Is Harmony Lab free?
Harmony Lab is free to download, with in-app purchases available.
Is Chord Invaders free?
Chord Invaders is free to download, with in-app purchases available.
Do Harmony Lab or Chord Invaders have ads?
Neither Harmony Lab nor Chord Invaders shows ads.
Which is updated more often, Harmony Lab or Chord Invaders?
Harmony Lab ships an update every 5 weeks, and Chord Invaders every 4 days. Most recently, Harmony Lab was updated on September 27, 2026 and Chord Invaders on October 8, 2026.

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