# Spectro by Variable vs Coralis

The clearest difference is review sentiment: Coralis at 100% against Spectro by Variable's 50%. Coralis also leads on in-app purchases (none vs 5) and rating (5.0 vs 4.8). Spectro by Variable's advantage is update cadence (every 3 weeks vs every 5 months) and ratings volume (118 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Spectro by Variable sells 5 in-app purchases, starting at $9.99 per month. Coralis asks for nothing beyond the download.

Coralis holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Spectro by Variable has 118 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 50% of Spectro by Variable's written reviews are positive against 100% of Coralis's.

Spectro by Variable ships an update every 3 weeks, Coralis every 5 months. The most recent releases landed on October 5, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Spectro by Variable | Coralis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (118 ratings)](https://appshunter.io/ios/app/spectro-by-variable/id1399186748/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coralis/id1573244665/reviews)** |
| Number of ratings | **118** | 1 |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 84 MB | 107 MB |
| Requires iOS | 13.4 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Variable Technologies LLC](https://appshunter.io/developer/569541572) | [Coralis Americas LLC](https://appshunter.io/developer/1573244667) |

## What reviewers say

### Spectro by Variable

[App page](https://appshunter.io/ios/app/spectro-by-variable/id1399186748)

This app enables color professionals to precisely measure, match, and communicate color data using connected devices. Access extensive color libraries and analyze spectral curves for accurate results anytime, anywhere.

**Highlights:** Scan, match, and compare colors, View spectral curves and LAB values, Access extensive brand color libraries, Analyze colors under multiple light sources, Store and export scan data, Create and store color standards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Monthly | $15.99 | per month |
| Quality Control Module | $75.00 | per month |
| Annual | $99.99 | per year |
| Annual | $149.99 | per year |


### Coralis

[App page](https://appshunter.io/ios/app/coralis/id1573244665)

This app connects to a color measurement instrument via Bluetooth to collect and analyze color data. It supports various color measurement standards, performs color comparisons with difference formulas, and allows for the creation and searching of custom color databases.

**Highlights:** Bluetooth instrument connection, Collects color data (reflectance, CIE-LABCH, XYZ, etc.), Performs color comparisons with difference formulas, Creates custom color databases, Searches for similar colors in databases

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Spectro by Variable free?

Spectro by Variable is free to download, with in-app purchases available.

### Is Coralis free?

Coralis is free to download, with no in-app purchases.

### Which has better reviews, Spectro by Variable or Coralis?

Coralis is rated higher. Spectro by Variable averages 4.8 out of 5 from 118 ratings, while Coralis averages 5.0 from 1 ratings.

### Do Spectro by Variable or Coralis have ads?

Neither Spectro by Variable nor Coralis shows ads.

### Which is updated more often, Spectro by Variable or Coralis?

Spectro by Variable ships an update every 3 weeks, and Coralis every 5 months. Most recently, Spectro by Variable was updated on October 5, 2026 and Coralis on September 26, 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.*