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Head-to-head · Audio Analysis Software

Smaart vs Voxengo SPAN

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Smaart #3 in Audio Analysis Software 8.9/10 30-day trial Free trial✓ 1 of 3 features Visit Smaart
Voxengo SPAN #4 in Audio Analysis Software 8.8/10 Free plan Free plan✓ 2 of 3 features Visit Voxengo SPAN

Smaart leads on 0 checks, Voxengo SPAN on 1, and 2 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreSmaart · 8.9/10
  • Free planonly Voxengo SPAN
  • Free trialonly Smaart
  • Most featuresVoxengo SPAN · 2 of 3

Smaart scores higher on our rubric for audio analysis software: 8.9 against 8.8 out of 10; our editors rank them #3 and #4.

Voxengo SPAN offers free plan; Smaart doesn't. On plugin support, Voxengo SPAN gives you Vst where Smaart offers None.

Smaart is the better fit for professional live sound measurement. Voxengo SPAN is the better fit for free plug-in spectrum analysis.

  • Smaart fits best

    Professional live sound measurement

  • Voxengo SPAN fits best

    Free plug-in spectrum analysis

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 Smaart 8.9/10 Visit ↗ Voxengo SPAN 8.8/10 Visit ↗
At a glance
Editor score 8.9 8.8
Ranking #3 in Audio Analysis Software #4 in Audio Analysis Software
Best for Professional live sound measurement Free plug-in spectrum analysis
Pricing model Paid Free
Starting price $159/yr Free
Free plan — ✓ (best)
Free trial 30 days —
Deployment Desktop, Mobile Desktop
Platforms Windows, macOS, iOS, Android Windows, macOS
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Features Smaart 1/3 · Voxengo SPAN 2/3
Real-time analysis ✓ ✓
Offline file analysis Not checked yet Not checked yet
Loudness standards Not checked yet ✓ (best)
Specs
Maximum channels Not checked yet Not checked yet
Plugin support None Vst
Analysis views RTA, spectrograph, magnitude, coherence, phase, live impulse response, linear, logarithmic, energy time curve, frequency, histogram, SPL history spectrum, loudness, level, RMS, true peak, clipping, correlation, mid/side
Our review
Pros
  • Broad real-time, transfer-function, impulse-response, and SPL analysis
  • Desktop support for Windows and macOS, plus iOS and Android apps
  • Signal generation, calibration, reporting, alarms, and remote SPL viewing
  • 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
Cons
  • No free plan; the demo is limited to 30 days
  • Advanced capabilities require higher-priced editions
  • No plugin support is listed
  • 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
Our verdict

Smaart is an acoustic test and measurement platform from Rational Acoustics for audio engineers, system designers, installers, and acoustical consultants. Its desktop editions run on Windows and macOS, while Smaart RTA mobile apps for iOS…

Read the review →

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 →
  1. SmaartAudio Analysis Software 8.930-day trial
  2. Voxengo SPANAudio Analysis Software 8.8Free plan

Strengths and trade-offs

  • Smaart — where it wins

    • Broad real-time, transfer-function, impulse-response, and SPL analysis
    • Desktop support for Windows and macOS, plus iOS and Android apps
    • Signal generation, calibration, reporting, alarms, and remote SPL viewing

    Where it doesn't

    • No free plan; the demo is limited to 30 days
    • Advanced capabilities require higher-priced editions
    • No plugin support is listed

  • 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

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