Comparison

APM Tool Lite vs Spectrum Analyzer

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

Head to head
About

APM Tool Lite

This application allows users to measure the acoustic performance of a room by analyzing key parameters like reverberation time and clarity. It includes a tutorial to guide users through its features, offering a simplified acoustic design activity.

Highlights
  • Measure acoustical performance
  • Analyze reverberation time
  • Evaluate clarity
  • Acoustic design activity
  • Tutorial slideshow
Features
Read full description

With APM Tool Lite you can measure the acoustical performance of a room by evaluating some of its more important acoustical parameters, like reverberation time, clarity, etc. New acoustic design activity (with limited features than full version). A tutorial slideshow explains the app usage.

About

Spectrum Analyzer

Visualize audio frequencies with real-time analysis. Features include a sound level meter, multichannel harmonic analysis, and adjustable graphical representations. Gain insights into your sound environment with advanced tools.

Highlights
  • Sound level meter
  • Multichannel harmonic analysis
  • Adjustable graphics
  • AI-powered sound source analyzer
  • Real-time analysis
  • FFT analysis
Features
Read full description

Spectrum Analyzer is a pro audio tool with sound level meter, multichannel harmonic analysis and detailed graphical representation. Learn something new about your sound environment with real-time analysis! FEATURES: - sound level meter; - harmonic analyzer; - adjustable graphics; - AI-powered sound source analyzer. SOUND LEVEL METER - precise measurement of sound and noise level - real-time results HARMONIC ANALYZER - multichannel FFT analysis; - adjustable parameters; - graphical representation. ADJUSTABLE GRAPHICS - various graphics and diagram types; - zoom of selected chart areas. This app offers subscriptions. The paid version includes AI noise detection, immersive 3D visualization, and customizable settings. The free version offers dB/Hz measurement, 2D mode, and limited visualization options. Privacy Policy: https://musicbreath.com/privacy Terms Of Use: https://musicbreath.com/tos

Screenshots

APM Tool Lite3 screens
Spectrum Analyzer3 screens

Verdict

The call

The clearest difference is review sentiment: APM Tool Lite at 50% against Spectrum Analyzer's 5%. APM Tool Lite also leads on in-app purchases (none vs 13) and ads (none vs shown). Spectrum Analyzer's advantage is update cadence (fortnightly vs every 6 months). On price 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. Spectrum Analyzer sells 13 in-app purchases, starting at $4.99 per 7 days. APM Tool Lite asks for nothing beyond the download.

UpkeepUpdate frequency

APM Tool Lite ships an update every 6 months, Spectrum Analyzer fortnightly. The most recent releases landed on September 1, 2026 and September 24, 2026 respectively.

Scorecard6 real differences · 4 level
APM Tool Lite versus Spectrum Analyzer: the parameters behind the verdict, then further details
ParameterAPM Tool LiteSpectrum Analyzer
PriceFreeFree
Rating—4.2 (197 ratings) — better
Positive reviews50.0% of reviews — better5.0% of reviews
Number of ratings—197 — better
Update frequencyEvery 6 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size87 MB132 MB
Age rating4+4+
DeveloperLorenzo RizziMusic Breath

Customer experience

APM Tool Lite

Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Spectrum Analyzer

All ratings197 ratings
Positive77.2%
Neutral6.6%
Negative16.2%
Written reviews241 reviews
Positive5.0%
Neutral5.0%
Negative90.0%

Bugs and requests

APM Tool Lite

Not enough reviews yet to summarise bugs or requests.

Spectrum Analyzer

Reported bugs

10 issues
  • App becomes unusable after iOS 16 update
  • Crashes immediately on iPhone 5 with iOS 7
  • Cannot exit app on iPhone X without reboot
  • App freezes when changing settings or views
  • Inaccurate frequency readings
Show 5 more
  • Slow and unresponsive performance
  • App hijacks device sound settings
  • Accidental in-app purchases triggered by home button
  • Subscription charges without clear user consent
  • App locks users into year-long subscriptions with no cancellation option

Requested features

7 requests
  • Audio file import functionality
  • Customizable background colors for chroma key compatibility
  • Ability to record audio instead of only analyzing
  • Better documentation and help files
  • Improved sensitivity for detecting soft sounds
Show 2 more
  • Dark mode option
  • Upfront pricing disclosure before download

In-app purchases

None

APM Tool Lite

No in-app purchases

13 purchases

Spectrum Analyzer

Subscriptions9
  • Pitch Finder: Audio Visualizer3 Days trial$4.997 Days
  • Pitch Finder: Audio Visualizer3 Days trial$9.991 Month
  • One Month Sale$9.991 Month
Show 6 more
  • 1 Week Subscription3 Days trial$9.997 Days
  • 1 Year Sub. with discount$19.991 Year
  • 1 Month Subscription$19.991 Month
  • 3 Month Subscription$25.993 Months
  • 1 Year Subscription3 Days trial$39.991 Year
  • 2 months subscription3 Days trial$39.992 Months
One-time4
  • No Ads$9.99
  • Additional Settings Controls$15.99
  • Full Pack + No Ads$19.99
Show 1 more
  • Get More$19.99

Questions

Is APM Tool Lite free?
APM Tool Lite is free to download, with no in-app purchases.
Is Spectrum Analyzer free?
Spectrum Analyzer is free to download, with in-app purchases available.
Do APM Tool Lite or Spectrum Analyzer have ads?
Spectrum Analyzer shows ads; APM Tool Lite does not.
Which is updated more often, APM Tool Lite or Spectrum Analyzer?
APM Tool Lite ships an update every 6 months, and Spectrum Analyzer fortnightly. Most recently, APM Tool Lite was updated on September 1, 2026 and Spectrum Analyzer on September 24, 2026.

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