Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Head-to-head · Audio Analysis Software

Voxengo SPAN vs Youlean Loudness Meter

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Voxengo SPAN #4 in Audio Analysis Software 8.8/10 Free plan Free plan✓ 2 of 3 features Visit Voxengo SPAN
Youlean Loudness Meter #6 in Audio Analysis Software 7.8/10 Free plan Free plan✓ 3 of 3 features Visit Youlean

Voxengo SPAN leads on 0 checks, Youlean Loudness Meter on 0, and 4 are even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreVoxengo SPAN · 8.8/10
  • Free planboth
  • Most featuresYoulean Loudness Meter · 3 of 3

Voxengo SPAN scores higher on our rubric for audio analysis software: 8.8 against 7.8 out of 10; our editors rank them #4 and #6.

Voxengo SPAN is the better fit for free plug-in spectrum analysis. Youlean Loudness Meter is the better fit for affordable loudness compliance.

  • Voxengo SPAN fits best

    Free plug-in spectrum analysis

  • Youlean Loudness Meter fits best

    Affordable loudness compliance

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature Voxengo SPAN 8.8/10 Visit ↗ Youlean Loudness Meter 7.8/10 Visit ↗
At a glance
Editor score 8.8 7.8
Ranking #4 in Audio Analysis Software #6 in Audio Analysis Software
Best for Free plug-in spectrum analysis Affordable loudness compliance
Pricing model Free Free plan + paid
Starting price Free $39 one-time
Free plan ✓ ✓
Free trial — —
Deployment Desktop Desktop
Platforms Windows, macOS Windows, macOS
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market, Enterprise
Features Voxengo SPAN 2/3 · Youlean Loudness Meter 3/3
Real-time analysis ✓ ✓
Offline file analysis Not checked yet ✓ (best)
Loudness standards ✓ ✓
Specs
Maximum channels Not checked yet 6 channels
Plugin support Vst Vst
Analysis views spectrum, loudness, level, RMS, true peak, clipping, correlation, mid/side mini view, distribution view, histogram view, loudness, loudness range, dynamics, true peak
Our review
Pros
  • Real-time FFT, spectrum smoothing and configurable display modes
  • Stereo, mono, mid-side and multichannel analysis with channel routing
  • EBU R128, K-system, true-peak, clipping and correlation metering
  • Free plan never expires and includes film, TV, and gaming presets
  • Measures LUFS, loudness range, dynamics, and true peak in real time
  • Supports major DAWs through VST2, VST3, AU, and AAX plug-ins
Cons
  • Requires a compatible audio host rather than operating as a standalone tool
  • Analysis-focused feature set does not include audio editing functions
  • Available as a single Free plan without tiered workflow options
  • Streaming presets are available only in the PRO plan
  • File drag-and-drop analysis is limited to the PRO plan
  • Runs on Windows and macOS, with no other platforms listed
Our verdict

Voxengo SPAN is a free real-time FFT audio frequency spectrum analyzer plug-in for music and audio production applications. It is designed for producers, engineers and audio professionals who need detailed visual analysis inside a…

Read the review →

Youlean Loudness Meter is an audio loudness and dynamics analysis tool for music producers, mastering engineers, broadcasters, studios, educators, and post-production teams. It runs as a standalone application or DAW plug-in on Windows and…

Read the review →
  1. Voxengo SPANAudio Analysis Software 8.8Free plan
  2. Youlean Loudness MeterAudio Analysis Software 7.8Free plan

Strengths and trade-offs

  • Voxengo SPAN — where it wins

    • Real-time FFT, spectrum smoothing and configurable display modes
    • Stereo, mono, mid-side and multichannel analysis with channel routing
    • EBU R128, K-system, true-peak, clipping and correlation metering

    Where it doesn't

    • Requires a compatible audio host rather than operating as a standalone tool
    • Analysis-focused feature set does not include audio editing functions
    • Available as a single Free plan without tiered workflow options

  • Youlean Loudness Meter — where it wins

    • Free plan never expires and includes film, TV, and gaming presets
    • Measures LUFS, loudness range, dynamics, and true peak in real time
    • Supports major DAWs through VST2, VST3, AU, and AAX plug-ins

    Where it doesn't

    • Streaming presets are available only in the PRO plan
    • File drag-and-drop analysis is limited to the PRO plan
    • Runs on Windows and macOS, with no other platforms listed

More comparisons

All audio analysis software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update