uSpectrum PAR vs OSpectrometer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
uSpectrum PAR
This application connects wirelessly to a handheld spectral PAR meter, allowing remote analysis and configuration of light sources. It displays detailed spectral data, light source information, and absorption metrics, with options to save and share measurements.
- Wireless Bluetooth connection
- Remote light source analysis
- Save captured data
- Display spectrum and CIE diagrams
- View light source metrics (LUX, CCT, CRI)
- Share measured data via email
Read full descriptionHide full description
uSpectrum PAR is a wireless controller application for UPRtek handheld Spectral PAR Meter which provides 6 main features, namely Basic, Spectrum, PPFD Spectrum, CIE1931, CIE1976, and, CRI. Supported Devices ・PG200N (≧ FW Ver.1.1.0.B25) # uSpectrum PAR will continuously add more supported devices in the future. Connect to Handheld Spectral PAR Meter via Bluetooth ・To remotely analyze light source target. ・To remotely configure the "Integration Mode" of device ・To save the captured data of device. More Features ・To show Spectrum, PPFD Spectrum, CIE1931, CIE1976, CRI diagram of the data(*.xls), which was generated from UPRTek handheld spectral PAR meter. ・To see more information of light source, such as LUX, CCT, CRI, x, y, λp, and λpV. ・To see more information of absorption of light source, such as PPFD, PFD, PFD-R, PFD-G, and, PFD-B. ・To share the measured data via email.
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.
- Visible light spectrum analysis
- RGB color value mapping
- Wavelength selection and scanning
- Front camera reflection sensing
- Save and share results
- Offline functionality
Read full descriptionHide full description
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
Verdict
The clearest difference is rating: OSpectrometer at 2.0 against uSpectrum PAR's 1.0. OSpectrometer also leads on update cadence (every 2 weeks vs every 8 months). uSpectrum PAR's advantage is in-app purchases (none vs 2) and iOS requirement (9.0 vs 15.1). 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
Both are free to download. OSpectrometer sells 2 in-app purchases, starting at $2.99 per month. uSpectrum PAR asks for nothing beyond the download.
OSpectrometer holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
uSpectrum PAR ships an update every 8 months, OSpectrometer every 2 weeks. The most recent releases landed on September 16, 2026 and September 10, 2026 respectively.
| Parameter | uSpectrum PAR | OSpectrometer |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (2 ratings) | 2.0 (4 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 8 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 25 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | United Power Research Technology Corporation | NANO ELECTRONICS RESEARCH MUHENDISLIK ARASTIRMA GELISTIRME LIMITED SIRKETI |
Customer experience
uSpectrum PAR
OSpectrometer
In-app purchases
uSpectrum PAR
No in-app purchases
OSpectrometer
- month3 Days trial$2.991 Month
- year3 Days trial$9.991 Year
Questions
Is uSpectrum PAR free?
Is OSpectrometer free?
Which has better reviews, uSpectrum PAR or OSpectrometer?
Do uSpectrum PAR or OSpectrometer have ads?
Which is updated more often, uSpectrum PAR or OSpectrometer?
Other comparisons















