Comparison

Epson Spectrometer vs Fire Weather Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Epson Spectrometer

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
Read full description

This is a dedicated app for the Epson SD-10 spectrophotometer. [Features] - The portable, compact, and easy to use SD-10 partnered with this app allows you to not only measure the color of indoor printed materials and Color Collections, but also measure outdoor signs and bulletin boards. - You can import measurement data to the app without complicated cable connections. - You can manage the colors imported to your app as reference colors, inspect them by comparing with a Color Collection, and check if the colors can be reproduced by the printer you are using. [Main Features] Color measurement: - Epson's original sensing technology realizes high-precision color measurement with a single tap in this app. Display: - Displays the measured colors in a variety of color spaces (Lab, LCh, RGB, CMYK, and LRV). - Searches and displays approximate colors from the PANTONE® Color Collection provided with this app. - Suggests colors that harmonize with the measured color. Comparison: - Compares measured colors to a Color Collection to determine the color difference. - Determines if the measured color can be reproduced by the printer you are using. Adjust: - Adjust color measurements to create a different color. Manage: - Add a variety of information (favorites, location, photos, and notes) to measured colors. - Create Color Collections (Color Palettes) to suit your needs. Linking features: - Create Color Swatch and Color Book files that can be imported into Adobe® Illustrator® and Photoshop®. [Notes] - The Epson SD-10 spectrophotometer is required to use this app. - This app connects to the SD-10 by Bluetooth®. - Emails such as "Send emails to developers" will be used for future service improvements. Unfortunately, we cannot reply to individual inquiries.

About

Fire Weather Calc

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
Read full description

This app was created by a wildland firefighter to improve efficiency, accuracy, and situational awareness in a demanding field environment. It is designed to reduce time spent on repetitive tasks, minimize errors, and provide practical tools that support better decision-making in the field. Built from firsthand experience, every feature is intended to solve real-world problems encountered by crews working in wildland fire operations.

Screenshots

Epson Spectrometer4 screens
Fire Weather Calc3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard2 real differences · 7 level
Epson Spectrometer versus Fire Weather Calc: the parameters behind the verdict, then further details
ParameterEpson SpectrometerFire Weather Calc
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Number of ratings4 — better1
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size57 MB50 MB
Age rating4+4+
DeveloperSeiko Epson CorporationByron Saylor

Customer experience

Epson Spectrometer

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Fire Weather Calc

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Epson Spectrometer

No in-app purchases

None

Fire Weather Calc

No in-app purchases

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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