# Epson Spectrometer vs Fire Weather Calc

The clearest difference is update cadence: Fire Weather Calc at every 2 days against Epson Spectrometer's every 3 months. Epson Spectrometer's advantage is ratings volume (4 vs 1). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Epson Spectrometer against 5.0 for Fire Weather Calc. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Epson Spectrometer ships an update every 3 months, Fire Weather Calc every 2 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Epson Spectrometer | Fire Weather Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/epson-spectrometer/id1558626654/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/fire-weather-calc/id6797057020/reviews) |
| Number of ratings | **4** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | Free |
| Size | 57 MB | 50 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Seiko Epson Corporation](https://appshunter.io/developer/326876195) | [Byron Saylor](https://appshunter.io/developer/6797057022) |

## What reviewers say

### Epson Spectrometer

[App page](https://appshunter.io/ios/app/epson-spectrometer/id1558626654)

This utility app enables precise color measurement of indoor and outdoor materials using a compatible spectrophotometer. It allows users to manage, compare, and adjust colors, and even check printer color reproduction capabilities.

**Highlights:** Portable color measurement, Import measurement data via Bluetooth, Manage colors as reference colors, Compare colors to Color Collections, Check printer color reproduction, Adjust color measurements, Create custom Color Collections

**Features:** Vision Pro support

**In-app purchases:** none


### Fire Weather Calc

[App page](https://appshunter.io/ios/app/fire-weather-calc/id6797057020)

This utility app helps wildland firefighters improve efficiency and accuracy in the field. It offers practical tools to reduce repetitive tasks and minimize errors, supporting better decision-making during operations. Designed by a firefighter, it addresses real-world challenges faced by crews.

**Highlights:** Improve efficiency, Enhance accuracy, Increase situational awareness, Reduce repetitive tasks, Minimize errors, Practical field tools

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

**In-app purchases:** none


## Frequently asked questions

### Is Epson Spectrometer free?

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

### Is Fire Weather Calc free?

Fire Weather Calc is free to download, with no in-app purchases.

### Which has better reviews, Epson Spectrometer or Fire Weather Calc?

Epson Spectrometer and Fire Weather Calc are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.

### Do Epson Spectrometer or Fire Weather Calc have ads?

Neither Epson Spectrometer nor Fire Weather Calc shows ads.

### Which is updated more often, Epson Spectrometer or Fire Weather Calc?

Epson Spectrometer ships an update every 3 months, and Fire Weather Calc every 2 days. Most recently, Epson Spectrometer was updated on November 4, 2026 and Fire Weather Calc on October 31, 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.*