Comparison

Epson Spectrometer vs OSpectrometer

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

OSpectrometer

This app uses your device's camera and screen to perform basic optical spectroscopy. Analyze the visible light spectrum of objects, map light wavelengths to RGB values, and save or share your findings. It functions offline without external hardware.

Highlights
  • Visible light spectrum analysis
  • RGB color value mapping
  • Wavelength selection and scanning
  • Front camera reflection sensing
  • Save and share results
  • Offline functionality
Features
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Optical spectroscopy in the visible light spectrum is a commonly used tool in different fields such as health, manufacturing, art, and forensic research. OSpectrometer implements basic spectrometer functions using the built-in camera and screen without requiring external devices or programs. - Visible light spectrum is transformed and mapped to a function that generates RGB (Red Green Blue) color values - A specific light wavelength can be selected and used to illuminate a desired target (i.e., close to the screen) - The whole spectrum or a specific part of the spectrum can be selected and scanned - Front camera is used to sense the reflection from the target object - Consistent and repeatable reflection/absorption amplitude with respect to the color spectrum - The result can be saved and shared - Works offline, no need to connect to any network or internet Privacy-policy: https://software.nanorescenter.com/osprectrometer-privacy-policy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Epson Spectrometer4 screens
OSpectrometer4 screens

Verdict

The call

The clearest difference is rating: Epson Spectrometer at 5.0 against OSpectrometer's 2.0. Epson Spectrometer also leads on in-app purchases (none vs 2). OSpectrometer's advantage is update cadence (every 2 weeks vs every 3 months). On price, ratings volume, ads and device support 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. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. Epson Spectrometer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Epson Spectrometer holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

UpkeepUpdate frequency

Epson Spectrometer ships an update every 3 months, OSpectrometer every 2 weeks. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
Epson Spectrometer versus OSpectrometer: the parameters behind the verdict, then further details
ParameterEpson SpectrometerOSpectrometer
PriceFreeFree
Rating5.0 (4 ratings) — better2.0 (4 ratings)
Positive reviews—0.0% of reviews
Number of ratings44
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size57 MB71 MB
Age rating4+4+
DeveloperSeiko Epson CorporationNANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI

Customer experience

Epson Spectrometer

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

OSpectrometer

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Epson Spectrometer

No in-app purchases

2 purchases

OSpectrometer

Subscriptions2
  • month3 Days trial$2.991 Month
  • year3 Days trial$9.991 Year

Questions

Is Epson Spectrometer free?
Epson Spectrometer is free to download, with no in-app purchases.
Is OSpectrometer free?
OSpectrometer is free to download, with in-app purchases available.
Which has better reviews, Epson Spectrometer or OSpectrometer?
Epson Spectrometer is rated higher. Epson Spectrometer averages 5.0 out of 5 from 4 ratings, while OSpectrometer averages 2.0 from 4 ratings.
Do Epson Spectrometer or OSpectrometer have ads?
Neither Epson Spectrometer nor OSpectrometer shows ads.
Which is updated more often, Epson Spectrometer or OSpectrometer?
Epson Spectrometer ships an update every 3 months, and OSpectrometer every 2 weeks. Most recently, Epson Spectrometer was updated on September 23, 2026 and OSpectrometer on September 10, 2026.

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