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Head-to-head · Audio Analysis Software

Insight 2 vs Voxengo SPAN

  • Updated Oct 2026
  • Both researched from official sources
  • 3 checks side by side
Higher score Insight 2 #1 in Audio Analysis Software 9.1/10 10-day trial Free trial✓ 2 of 3 features Visit iZotope
Voxengo SPAN #4 in Audio Analysis Software 8.8/10 Free plan Free plan✓ 2 of 3 features Visit Voxengo SPAN

Insight 2 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 scoreInsight 2 · 9.1/10
  • Free planonly Voxengo SPAN
  • Free trialonly Insight 2

Insight 2 scores higher on our rubric for audio analysis software: 9.1 against 8.8 out of 10; our editors rank them #1 and #4.

Voxengo SPAN offers free plan; Insight 2 doesn't.

Insight 2 is the better fit for professional loudness and immersive metering. Voxengo SPAN is the better fit for free plug-in spectrum analysis.

  • Insight 2 fits best

    Professional loudness and immersive metering

  • Voxengo SPAN fits best

    Free plug-in spectrum analysis

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Side by side

Feature Insight 2 9.1/10 Visit ↗ Voxengo SPAN 8.8/10 Visit ↗
At a glance
Editor score 9.1 8.8
Ranking #1 in Audio Analysis Software #4 in Audio Analysis Software
Best for Professional loudness and immersive metering Free plug-in spectrum analysis
Pricing model Paid Free
Starting price $199 one-time Free
Free plan — ✓ (best)
Free trial 10 days —
Deployment Desktop Desktop
Platforms Windows, macOS Windows, macOS
Built for Solo, Small business, Mid-market Solo, Small business, Mid-market
Features Insight 2 2/3 · Voxengo SPAN 2/3
Real-time analysis ✓ ✓
Offline file analysis Not checked yet Not checked yet
Loudness standards ✓ ✓
Specs
Maximum channels 10 channels Not checked yet
Plugin support Vst Vst
Analysis views loudness, levels, sound field, spectrogram, intelligibility, spectrum, history spectrum, loudness, level, RMS, true peak, clipping, correlation, mid/side
Our review
Pros
  • Supports stereo through Dolby Atmos 7.1.2 configurations
  • Combines loudness, levels, sound field, spectrogram, and intelligibility tools
  • Provides customizable layouts and broadcast loudness target profiles
  • 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
  • The perpetual license costs $199
  • Supports up to 10 audio channels
  • Intelligibility Meter analysis requires Relay input
  • 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

Insight 2 is an audio metering and analysis plug-in for music producers, mix engineers, mastering engineers, and post-production professionals. It runs in compatible digital audio workstations on macOS and Windows, with tools for loudness,…

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. Insight 2Audio Analysis Software 9.110-day trial
  2. Voxengo SPANAudio Analysis Software 8.8Free plan

Strengths and trade-offs

  • Insight 2 — where it wins

    • Supports stereo through Dolby Atmos 7.1.2 configurations
    • Combines loudness, levels, sound field, spectrogram, and intelligibility tools
    • Provides customizable layouts and broadcast loudness target profiles

    Where it doesn't

    • The perpetual license costs $199
    • Supports up to 10 audio channels
    • Intelligibility Meter analysis requires Relay input

  • 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