Harmony Lab vs Hi Guitar
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Harmony Lab
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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 - Thatβs 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
Hi Guitar
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Whether you're picking up the guitar for the first time or have been playing for years, Hi Guitar delivers a real music-making experience β no rehearsal room, no instructor required. β GUITAR SIMULATOR Play over 15 types of guitars with true-to-life sound, from classic acoustic and steel-string to electric and bass. Each instrument is recorded and processed to studio standards, delivering an authentic playing feel right at your fingertips. β TUNER Keep your guitar perfectly in tune with the built-in Tuner. Simply pluck a string and the app instantly detects and displays the pitch in real time β so you're always ready to play at your best. β CHORD WHEEL Explore and look up guitar chords effortlessly with the intuitive chord wheel. From basic open chords to advanced voicings, everything is displayed clearly so you can learn and practice at your own pace. Hi Guitar β Starting right here.
Screenshots
Verdict
The clearest difference is ads: Harmony Lab at none against Hi Guitar's shown. Hi Guitar's advantage is update cadence (fortnightly vs every 5 weeks) and iOS requirement (15.0 vs 17.6). On price, 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
Both are free to download. Harmony Lab sells 2 in-app purchases, starting at $1.99 per month and Hi Guitar sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Harmony Lab ships an update every 5 weeks, Hi Guitar fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.
| Parameter | Harmony Lab | Hi Guitar |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks | Fortnightly β better |
| Ads | No β better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod β better |
| Requires iOS | 17.6 | 15.0 β better |
| Further details β not scored | ||
| Size | 29 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Sean Ray Dvir | Nguyen Hieu |
In-app purchases
Harmony Lab
- No Ads$1.991 Month
- Full Access$4.991 Month
Hi Guitar
- Premium$3.99









