# INDIGO Control Panel vs Chord

The clearest difference is review sentiment: Chord at 57% against INDIGO Control Panel's 0%. Chord also leads on in-app purchases (none vs 3) and device support (5 vs 3). INDIGO Control Panel's advantage is price (Free vs $3.99). On update cadence, ads and iOS requirement there is nothing between them.

INDIGO Control Panel is free to download; Chord costs $3.99 up front. INDIGO Control Panel sells 3 one-off in-app purchases. Chord asks for nothing beyond the download.

INDIGO Control Panel ships an update fortnightly, Chord every 4 weeks. The most recent releases landed on October 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | INDIGO Control Panel | Chord |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | — | **[4.8 (81 ratings)](https://appshunter.io/ios/app/chord/id1500126852/reviews)** |
| Number of ratings | — | **81** |
| Positive reviews | 0.0% of reviews | **57.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | **Free** | Paid |
| Size | 15 MB | 46 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [CloudMakers, s. r. o.](https://appshunter.io/developer/789740577) | [Roman Sevastyanov](https://appshunter.io/developer/1448837134) |

## What reviewers say

### INDIGO Control Panel

[App page](https://appshunter.io/ios/app/indigo-control-panel/id813852113)

This application offers a streamlined interface for managing servers and configuring serial ports. It provides direct access to agent properties for a focused operational experience, without including a built-in server or agent-specific panels.

**Highlights:** Server management, Serial port configuration, Direct agent property view, Streamlined interface, Cross-platform compatibility

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All features upgrade | Free | one-time |
| All features 14-day trial | Free | one-time |
| All features | $9.99 | one-time |


### Chord

[App page](https://appshunter.io/ios/app/chord/id1500126852)

Unlock musical creativity with a suite of tools for composing and practicing. Generate chord progressions, practice notation, train your ear, and even use your device as a MIDI keyboard. Includes a macOS version for seamless integration.

**Highlights:** Chord progression generation with inversions and extensions, Live playback as piano or synth, MIDI output to macOS, Guitar chord finder, Notation reading practice, Ear training for intervals and voice, macOS version included

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is INDIGO Control Panel free?

INDIGO Control Panel is free to download, with in-app purchases available.

### Is Chord free?

Chord costs $3.99, with no in-app purchases.

### Do INDIGO Control Panel or Chord have ads?

Neither INDIGO Control Panel nor Chord shows ads.

### Which is updated more often, INDIGO Control Panel or Chord?

INDIGO Control Panel ships an update fortnightly, and Chord every 4 weeks. Most recently, INDIGO Control Panel was updated on October 2, 2026 and Chord on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*