Comparison

uSpectrumX vs Spectrolite

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

Head to head
About

uSpectrumX

This application connects wirelessly to a handheld spectrometer to remotely analyze light sources. It displays detailed spectral data, light source information, and allows for data saving and sharing.

Highlights
  • Wireless Wi-Fi connection to spectrometer
  • Remote light source analysis
  • Spectrum, CIE1931, CIE1976, CRI, TM-30 diagrams
  • Detailed light source information (LUX, CCT, CRI)
  • Save and share captured data
  • Open UPRTek .xls files
Features
Read full description

uSpectrumX is a wireless controller application for UPRTek handheld spectrometer which provides 6 main features, namely Basic, Spectrum, CIE1931, CIE1976, CRI, and TM-30. Supported Devices ・MK350S Premium (≧ FW Ver.1.1.0.B24) ・MK350N Premium (≧ FW Ver.1.1.1.B6) # uSpectrumX will continuously add more supported devices in the future. Connect to Handheld Spectrometer via Wi-Fi ・To remotely analyze light source target. ・To remotely configure the "Integration Mode" of device ・To remotely run "Dark Calibration" of device. ・To save the captured data of device. More Features ・To show Spectrum, CIE1931, CIE1976, CRI, TM-30 diagram of the data(*.xls), which was generated from UPRTek handheld spectrometer. ・To see more detail information of light source, such as LUX, CCT, CRI, x, y, λp, and λpV. ・To share the measured data via email. ・To choose uSpectrumX to open UPRTek xls file from other apps.

About

Spectrolite

This app visualizes sound in real-time using various spectrogram types. Explore detailed audio data with intuitive touch controls and adjustable parameters. An optional purchase unlocks advanced measurement tools.

Highlights
  • Real-time spectrogram visualization
  • Constant-Q, linear, and mel frequency scales
  • Full human hearing frequency range
  • Intuitive touch panning and zooming
  • Adjustable gain, Q, and other parameters
  • Pro version: grids, scales, spectrum view, tap-to-measure
Features
Read full description

Spectrolite visualizes sound as spectrograms in real time. Spectrolite supports constant-Q spectrograms, which use a logarithmic frequency scale for a display where musical notes are evenly spaced. Spectrograms based on linear and mel frequency scales are also supported. The display covers the full frequency range of human hearing. Intuitive touch panning and zooming lets you dive in and explore the spectrograms in detail. Gain, Q, and other parameters can be adjusted in real time and instantly apply to the display of past signals as well as future ones. The Pro in-app purchase adds grids and scales for time, frequency, and amplitude, as well as a spectrum view and a tap-to-measure function. This expands Spectrolite into an audio measurement tool that you can use to measure frequencies, musical pitches, amplitudes, and durations.

Screenshots

uSpectrumX4 screens
Spectrolite4 screens

Verdict

The call

The clearest difference is in-app purchases: uSpectrumX at none against Spectrolite's 1. uSpectrumX also leads on rating (5.0 vs 4.7) and update cadence (every 3 months vs every 8 months). Spectrolite's advantage is ratings volume (66 vs 1). On price, 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. Spectrolite sells 1 one-off in-app purchase. uSpectrumX asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

uSpectrumX holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Spectrolite has 66 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

uSpectrumX ships an update every 3 months, Spectrolite every 8 months. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

Scorecard6 real differences · 4 level
uSpectrumX versus Spectrolite: the parameters behind the verdict, then further details
ParameteruSpectrumXSpectrolite
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (66 ratings)
Positive reviews—83.3% of reviews
Number of ratings166 — better
Update frequencyEvery 3 months — betterEvery 8 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.6
Further details — not scored
Size25 MB1 MB
Age rating4+4+
DeveloperUnited Power Research Technology CorporationWaxing Wave

In-app purchases

None

uSpectrumX

No in-app purchases

1 purchases

Spectrolite

One-time1
  • Pro$4.99

Questions

Is uSpectrumX free?
uSpectrumX is free to download, with no in-app purchases.
Is Spectrolite free?
Spectrolite is free to download, with in-app purchases available.
Which has better reviews, uSpectrumX or Spectrolite?
uSpectrumX is rated higher. uSpectrumX averages 5.0 out of 5 from 1 ratings, while Spectrolite averages 4.7 from 66 ratings.
Do uSpectrumX or Spectrolite have ads?
Neither uSpectrumX nor Spectrolite shows ads.
Which is updated more often, uSpectrumX or Spectrolite?
uSpectrumX ships an update every 3 months, and Spectrolite every 8 months. Most recently, uSpectrumX was updated on November 2, 2026 and Spectrolite on November 7, 2026.

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