Comparison

Loop11 User Testing vs SoundMeter X

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

Head to head
About

Loop11 User Testing

Participate in global usability testing studies. This application launches when you begin a test for which you have a provided link. It connects you with design companies worldwide.

Highlights
  • Participate in usability testing
  • Connect with global design companies
  • Launch tests via provided links
  • Remote user experience studies
Features
Read full description

The Loop11 app allows you to participate in usability testing studies ran by design companies from around the world. This app will open when you start a usability test for which you have been provided a link to.

About

SoundMeter X

Transform your device into a professional sound level meter, noise dosimeter, and spectrum analyzer. Log data, calibrate sensitivity, and analyze audio with advanced features. Offers a free trial for premium functionalities.

Highlights
  • Handheld data-logging sound level meter
  • Data-logging noise dosimeter
  • Real-time octave spectrum analyzer
  • Multi-channel data recorder
  • Stereo signal generator
  • Sensitivity calibration
  • Data logging in CSV, TXT, MAT, and PDF
Features
Read full description

SoundMeter X turns your iPhone or iPad into a handheld data-logging sound level meter (SLM), data-logging noise dosimeter, stereo signal generator, multi-channel data recorder, and real-time whole or 1/3 octave band spectrum analyzer (subscription or perpetual license required for most features--14-day free trial available). Input signals can be acquired from any available audio input path. Sensitivity calibration can also be performed for any audio input device and/or input channel. Direct hardware support (automatic sensitivity calibration, based on factory-defined values) for The Modal Shop’s 2-channel 485B39 USB-ICP interface and miniDSP’s UMIK-1, UMIK-2, and EARS microphones. In addition to real-time sound level measurements, SoundMeter can stream raw sound data to audio files, and store acquired sound level data, including date, time, and location, in CSV or TXT (tab-delimited) files, MAT-files, or high-resolution PDF images for later retrieval from your device. SoundMeter may be downloaded for free from the App Store. Additional tools and features are offered via in-app purchase. The SoundMeter Pro subscription includes: - User-defined custom metadata in saved audio and data files - Level MeterLp, Leq, Lx sound levels -- Standard Flat, A, C frequency weighting -- Standard Fast, Slow, Impulse time weighting -- Data logging. Data can be logged as often as every 0.1 seconds for up to 8 hours, every second for up to 72 hours, or every 10 seconds for up to two weeks. -- Event notifications - Max Levels Meter -- Traffic-light-style meters make it easy to monitor 2 separate sound level thresholds in 2 independent user-defined frequency bands. -- Define lower (warning) and higher (limit) sound level thresholds for overall (full audio band) levels as well as for individual octave frequency bands. -- Store user-defined thresholds in files for later recall. - Noise Dosimeter -- 8-hour Noise Dose, Projected Dose, TWA calculations -- Criterion Levels: 80, 85, 90 dB -- Exchange Rates: 3, 4, 5 dB -- Data logging. Data can be logged as often as every 0.1 seconds for up to 8 hours, every second for up to 72 hours, or every 10 seconds for up to two weeks. - Real-time Octave Spectrum Analyzer (RTA) -- Lp, Leq, Lx sound levels -- Supports whole or 1/3-octave frequency bands -- Standard Flat, A, C frequency weighting -- Standard Fast, Slow, Impulse time weighting -- NC, RNC, and NR references curves, NC, SIL, and NR values -- Data logging. Data can be logged as often as every 0.1 seconds for up to 8 hours, every second for up to 72 hours, or every 10 seconds for up to two weeks. - Multi-channel Data Recorder -- Supports up to 8 channels -- Live monitoring of recorded data -- Metadata (including calibrated sensitivity) embedded in audio file (AIF, CAF, WAV), optionally saved in separate data file - Stereo Signal Generator -- Left and right outputs assigned to arbitrary hardware output channels -- Random and pseudorandom (periodic) noise sequences with white or pink spectrum -- Linear and logarithmic frequency sweeps -- Dual periodic waveforms with arbitrary frequency and phase difference - MultiTool -- Powerful data monitoring and project management (Add 2-6 subtools, depending on screen size, and save configurations for easy recall at a later time.) The SignalScope X Pro Tool Set subscription can be shared between SoundMeter X and SignalScope X. It unlocks all tools and features of the SoundMeter Pro subscription in SoundMeter X and all tools and features of the Pro Tool Set subscription in SignalScope X (iCloud login required). Learn more about SoundMeter X at FaberAcoustical.com. Subscription Terms: - https://www.faberacoustical.com/apps/subscriptions/terms.html Privacy Policy: - https://www.faberacoustical.com/about/privacy.html Terms and Conditions for FaberAcoustical.com: https://www.faberacoustical.com/about/terms.html

Screenshots

Loop11 User Testing1 screens
SoundMeter X4 screens

Verdict

The call

The clearest difference is rating: SoundMeter X at 3.6 against Loop11 User Testing's 3.1. SoundMeter X also leads on review sentiment (23% vs 9%) and ratings volume (45 vs 8). Loop11 User Testing's advantage is in-app purchases (none vs 7) and iOS requirement (12.0 vs 18.6). On price, update cadence, 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. SoundMeter X sells 7 in-app purchases, starting at $4.99 per month. Loop11 User Testing asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SoundMeter X holds the better App Store score, 3.6 against 3.1. That said, the two scores are not equally well evidenced: SoundMeter X has 45 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 9% of Loop11 User Testing's written reviews are positive against 23% of SoundMeter X's.

UpkeepUpdate frequency

Loop11 User Testing ships an update every 3 weeks, SoundMeter X every 5 weeks. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
Loop11 User Testing versus SoundMeter X: the parameters behind the verdict, then further details
ParameterLoop11 User TestingSoundMeter X
PriceFreeFree
Rating3.1 (8 ratings)3.6 (45 ratings) — better
Positive reviews9.1% of reviews22.6% of reviews — better
Number of ratings845 — better
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS12.0 — better18.6
Further details — not scored
Size29 MB18 MB
Age rating17+4+
DeveloperLoop11Faber Acoustical, LLC

Customer experience

Loop11 User Testing

All ratings8 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews11 reviews
Positive9.1%
Neutral0.0%
Negative90.9%

SoundMeter X

All ratings45 ratings
Positive62.2%
Neutral8.9%
Negative28.9%
Written reviews31 reviews
Positive22.6%
Neutral6.5%
Negative71.0%

In-app purchases

None

Loop11 User Testing

No in-app purchases

7 purchases

SoundMeter X

Subscriptions4
  • SoundMeter Pro, 1 Month14 Days trial$4.991 Month
  • Pro Tool Set, 1 Month14 Days trial$24.991 Month
  • SoundMeter Pro, 1 Year14 Days trial$49.991 Year
Show 1 more
  • Pro Tool Set, 1 Year14 Days trial$249.991 Year
One-time3
  • 14-day Free Trial, SoundMeter ProFree
  • SoundMeter Pro 2026 Upgrade$29.99
  • SoundMeter Pro 2026$99.99

Questions

Is Loop11 User Testing free?
Loop11 User Testing is free to download, with no in-app purchases.
Is SoundMeter X free?
SoundMeter X is free to download, with in-app purchases available.
Which has better reviews, Loop11 User Testing or SoundMeter X?
SoundMeter X is rated higher. Loop11 User Testing averages 3.1 out of 5 from 8 ratings, while SoundMeter X averages 3.6 from 45 ratings.
Do Loop11 User Testing or SoundMeter X have ads?
Neither Loop11 User Testing nor SoundMeter X shows ads.
Which is updated more often, Loop11 User Testing or SoundMeter X?
Loop11 User Testing ships an update every 3 weeks, and SoundMeter X every 5 weeks. Most recently, Loop11 User Testing was updated on September 19, 2026 and SoundMeter X on September 21, 2026.

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