Comparison

LightSpectrum Pro vs Sidus Audio

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

Head to head
About

LightSpectrum Pro

Measure light source color temperature and spectrum accurately without expensive equipment. View the color spectrum from 360nm to 800nm, and analyze the white point on the CIE 1931 diagram. Overlay filtered wavelengths on camera images to see frequency reflections and intensity.

Highlights
  • Color temperature measurement
  • Color spectrum analysis (360nm-800nm)
  • CIE 1931 white point display
  • Wavelength filtering and overlay
  • High accuracy compared to professional devices
Features
Currently charting
Read full description

With LightSpectrumPro EVO you can measure the color temperature of a light source without having to spend hundreds of dollars on professional devices. LightSpectrumPro EVO has an error of 2 - 8% compared to existing professional products on the market. in addition to the color temperature measurement in Kelvin, LightSpectrumPro EVO allows you to view the color spectrum of the light being examined with a band ranging from 360nm to 800nm. in addition to the spectrum it is possible to display the position of the white point on the CIE 1931 diagram and to apply a filter for wavelengths to display in overlay on the image captured by the cameras which elements reflect a specific frequency and with what intensity.

About

Sidus Audio

This app allows professional audio engineers and sound enthusiasts to wirelessly connect and control multiple audio devices. It features an intelligent network for stable communication, centralized monitoring, and parameter presets, all accessible through a user-friendly interface.

Highlights
  • Intelligent audio network
  • Wireless device control
  • Centralized monitoring
  • Parameter presets
  • Cloud synchronization
  • Demo mode
Features
Read full description

Sidus Audio™ is an audio control App released by Sidus Link® for professional audio engineers, mixing engineers, foley engineers as well as video workers, anchor and sound lover,etc.Users can connect and control devices wirelessly,to realize higher working efficiency. I. Intelligent audio network The decentralized audio communication network supports direct connection of audio device through mobile terminal Bluetooth without another network (gateway or router); The auto reconnection mechanism can maximize the communication smoothness and avoid repeated adding of audio devices; Support up to 20 devices, exclusive Bit ConnectifyTM technology provides more stable and faster communication transmission. II. Functions 1. Control Mode Simplified core controls to ensure ease of use for users. Accurate workstation classification to improve focus and efficiency. 2. Quick Management Monitoring mode The “Devices” and “Workstation” mode supports centralized and classified monitoring, to realize overall and targeted management; Parameter preset The device parameters can be saved to preset library and uploaded to cloud server, to support one-key saving and call; III. Workflow First,establish a Bluetooth communication network and start intelligent control right now! Second, copy the configured devices to device groups for application in different scenarios. Finally, the dual modes of "Devices" and "Workstation" will help help you monitor efficiently! IV. Cloud Service Free Cloud storage, support synchronization of presets and account data to avoid occupation of local memory. Reliable cloud service manager, avoid data loss when switching among different terminals. V. Demo Mode Full-process functional experience, no equipment required, no threshold to get started.

Screenshots

LightSpectrum Pro4 screens
Sidus Audio4 screens

Verdict

The call

The clearest difference is price: Sidus Audio at Free against LightSpectrum Pro's $1.99. Sidus Audio also leads on review sentiment (71% vs 28%) and rating (4.4 vs 4.1). LightSpectrum Pro's advantage is chart position (#39 vs unranked). On ratings volume, ads, in-app purchases and monetization model 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

Sidus Audio is free to download; LightSpectrum Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sidus Audio holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 39 and 17 respectively. Written reviews point the same way: 28% of LightSpectrum Pro's written reviews are positive against 71% of Sidus Audio's.

UpkeepUpdate frequency

LightSpectrum Pro ships an update every 3 months, Sidus Audio every 6 weeks. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.

Scorecard5 real differences · 6 level
LightSpectrum Pro versus Sidus Audio: the parameters behind the verdict, then further details
ParameterLightSpectrum ProSidus Audio
Price$1.99Free — better
Rating4.1 (39 ratings)4.4 (17 ratings) — better
Positive reviews28.5% of reviews71.4% of reviews — better
Number of ratings39 — better17
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#39 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size88 MB50 MB
Age rating4+4+
DeveloperAM PowerSoftwareSidus Link Ltd.

Customer experience

LightSpectrum Pro

All ratings39 ratings
Positive76.9%
Neutral2.6%
Negative20.5%
Written reviews172 reviews
Positive28.5%
Neutral5.8%
Negative65.7%

Sidus Audio

All ratings17 ratings
Positive82.4%
Neutral5.9%
Negative11.8%
Written reviews14 reviews
Positive71.4%
Neutral7.1%
Negative21.4%

Bugs and requests

LightSpectrum Pro

Reported bugs

11 issues
  • App crashes on startup or during use
  • Camera feed not accessible or showing red X icon
  • Screen blinking/flashing on first launch
  • UI elements cut off on larger screens
  • Buttons unresponsive or sticky
Show 6 more
  • App freezes and cannot be exited
  • Black screen on launch
  • Inconsistent readings that change rapidly
  • App stuck on opening screen
  • Camera focus issues on iPhone X and newer models
  • Incompatibility with iOS 5, 6, and newer iPhone models

Requested features

11 requests
  • Spot metering with crosshairs or target reticle
  • Direct DUV (Delta uv) display calculation
  • Flicker detection for light sources
  • Calibration function for improved accuracy
  • Support for fluorescent light preset adjustments
Show 6 more
  • Tap-to-focus camera control
  • Landscape orientation support
  • Ability to disable tutorial tips
  • Screenshot capability in landscape mode
  • Better documentation and user guide
  • Device compatibility information in app store listing

Sidus Audio

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

LightSpectrum Pro

No in-app purchases

None

Sidus Audio

No in-app purchases

Questions

Is LightSpectrum Pro free?
LightSpectrum Pro costs $1.99, with no in-app purchases.
Is Sidus Audio free?
Sidus Audio is free to download, with no in-app purchases.
Which has better reviews, LightSpectrum Pro or Sidus Audio?
Sidus Audio is rated higher. LightSpectrum Pro averages 4.1 out of 5 from 39 ratings, while Sidus Audio averages 4.4 from 17 ratings.
Do LightSpectrum Pro or Sidus Audio have ads?
Neither LightSpectrum Pro nor Sidus Audio shows ads.
Which is updated more often, LightSpectrum Pro or Sidus Audio?
LightSpectrum Pro ships an update every 3 months, and Sidus Audio every 6 weeks. Most recently, LightSpectrum Pro was updated on October 14, 2026 and Sidus Audio on October 11, 2026.

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