Spectrum Compact Simulator vs uSpectrumX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spectrum Compact Simulator
Explore the functionality of a handheld microwave spectrum analyzer through a realistic simulation. This application demonstrates how to perform antenna alignment, troubleshooting, and maintenance with ease and speed.
- Simulates handheld microwave spectrum analyzer
- Demonstrates real microwave radio spectrum data
- Facilitates antenna alignment
- Aids in troubleshooting
- Supports maintenance tasks
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SAF Spectrum Compact Simulator application was created for you to discover and experience the ease of use of the world's first handheld microwave spectrum analyzer. The application demonstrate full set of SAF Spectrum Compact functions by simulating real microwave radio spectrum data. The device makes the antenna alignment, troubleshooting and maintenance as easy and fast as never before!
uSpectrumX
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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.
Screenshots
Verdict
The clearest difference is iOS requirement: Spectrum Compact Simulator at 7.1 against uSpectrumX's 9.0. On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Spectrum Compact Simulator ships an update every 2 months, uSpectrumX every 3 months. The most recent releases landed on September 18, 2026 and October 4, 2026 respectively.
| Parameter | Spectrum Compact Simulator | uSpectrumX |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.1 — better | 9.0 |
| Further details — not scored | ||
| Size | 1 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | SAF Tehnika AS | United Power Research Technology Corporation |
In-app purchases
Spectrum Compact Simulator
No in-app purchases
uSpectrumX
No in-app purchases
Questions
Is Spectrum Compact Simulator free?
Is uSpectrumX free?
Do Spectrum Compact Simulator or uSpectrumX have ads?
Which is updated more often, Spectrum Compact Simulator or uSpectrumX?
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