# Munsell Viewer vs Spectro by Variable

The clearest difference is review sentiment: Spectro by Variable at 50% against Munsell Viewer's 0%. Spectro by Variable also leads on rating (4.8 vs 3.2) and ratings volume (118 vs 6). Munsell Viewer's advantage is in-app purchases (none vs 5) and iOS requirement (10.0 vs 13.4). On price, ads and device support there is nothing between them.

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

Spectro by Variable holds the better App Store score, 4.8 against 3.2. That said, the two scores are not equally well evidenced: Spectro by Variable has 118 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 0% of Munsell Viewer's written reviews are positive against 50% of Spectro by Variable's.

Munsell Viewer ships an update every 2 months, Spectro by Variable every 3 weeks. The most recent releases landed on September 16, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Munsell Viewer | Spectro by Variable |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (6 ratings)](https://appshunter.io/ios/app/munsell-viewer/id1240497502/reviews) | **[4.8 (118 ratings)](https://appshunter.io/ios/app/spectro-by-variable/id1399186748/reviews)** |
| Number of ratings | 6 | **118** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 84 MB |
| Requires iOS | **10.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yasashi Matsuo](https://appshunter.io/developer/1240497501) | [Variable Technologies LLC](https://appshunter.io/developer/569541572) |

## What reviewers say

### Munsell Viewer

[App page](https://appshunter.io/ios/app/munsell-viewer/id1240497502)

This application displays Munsell color charts and converts Munsell values to RGB. It also shows color tables based on various Munsell value standards like US Standard Card and Japan JIS.

**Highlights:** Munsell color chart display, Munsell to RGB conversion, Color table display, Support for multiple color standards

**Features:** Vision Pro support

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is Munsell Viewer free?

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

### Is Spectro by Variable free?

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

### Which has better reviews, Munsell Viewer or Spectro by Variable?

Spectro by Variable is rated higher. Munsell Viewer averages 3.2 out of 5 from 6 ratings, while Spectro by Variable averages 4.8 from 118 ratings.

### Do Munsell Viewer or Spectro by Variable have ads?

Neither Munsell Viewer nor Spectro by Variable shows ads.

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

Munsell Viewer ships an update every 2 months, and Spectro by Variable every 3 weeks. Most recently, Munsell Viewer was updated on September 16, 2026 and Spectro by Variable on October 5, 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.*