# INDIGO Control Panel vs XSpecApp

The clearest difference is update cadence: XSpecApp at every 2 days against INDIGO Control Panel's fortnightly. XSpecApp also leads on iOS requirement (8.0 vs 16.0). INDIGO Control Panel's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. INDIGO Control Panel sells 3 one-off in-app purchases and XSpecApp sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

INDIGO Control Panel ships an update fortnightly, XSpecApp every 2 days. The most recent releases landed on June 1, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | INDIGO Control Panel | XSpecApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/xspecapp/id1666746288/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 48 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CloudMakers, s. r. o.](https://appshunter.io/developer/789740577) | [Brian Cross, XRF Consulting, LLC](https://appshunter.io/developer/1666746290) |

## 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 |


### XSpecApp

[App page](https://appshunter.io/ios/app/xspecapp/id1666746288)

This application displays EDXRF spectra, allowing users to manually identify elements, calculate ROIs, and add annotations. It supports saving, loading, and printing spectra with detailed information. The app can also acquire spectra using a digital pulse processor via USB, Serial, or wireless connections.

**Highlights:** Manual element identification, ROI calculation for peaks, Spectrum annotations, Spectrum printing with ROIs, Save and load spectra, Acquire spectra via digital pulse processor

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| XSpecApp | $24.99 | one-time |


## Frequently asked questions

### Is INDIGO Control Panel free?

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

### Is XSpecApp free?

XSpecApp is free to download, with in-app purchases available.

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

Neither INDIGO Control Panel nor XSpecApp shows ads.

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

INDIGO Control Panel ships an update fortnightly, and XSpecApp every 2 days. Most recently, INDIGO Control Panel was updated on June 1, 2026 and XSpecApp on September 9, 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.*