Comparison

MuPsych vs Spectrum

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

Head to head
About

MuPsych

Features
Read full description

Discover how MUSIC influences your EMOTIONS Do you listen to music on your phone? Find out how the music you listen to influences your emotions, and track your everyday listening habits. Take part in a music psychology study that will help you understand your unique listening style. Take part in our study to unlock great rewards: - Your Music Diary - Win Spotify Premium - Your Music Charts - Your Listener Profile - MuPsych Recommender For all details, see www.musicstudy.net

About

Spectrum

Features
Read full description

Spectrum turns your phone into a modern real-time audio analyzer - the clean, fast tool that older spectrum apps never gave you. See sound the moment it happens: a live FFT frequency spectrum and a scrolling spectrogram (waterfall), with automatic peak detection and the matching musical note. Built for a phone screen, with a beautiful dark and light theme - not a cramped desktop port. WHY SPECTRUM • Modern, readable interface - designed for touch, dark & light themes • Save your measurements and revisit them anytime (most analyzers forget everything the moment you close them) • Export the spectrogram as a high-resolution image, or your data as CSV • Works on both iPhone and iPad • Real peak frequency + musical note readout, in cents FEATURES • Real-time FFT spectrum, log or linear frequency axis • Spectrogram (waterfall) view • Tap the chart for a frequency cursor with dB and musical note • Peak hold and peak-frequency tracking • Musical note detection (A4 = 440 Hz) • A-weighting for perceived loudness • Adjustable FFT size (2048 / 4096 / 8192) • Save, name and organize measurements • Image & CSV export • 8 languages SPECTRUM PRO - one-time purchase, no subscription • 1/3 octave RTA view with per-band peak hold - the classic real-time analyzer used for live sound and room tuning • Tone generator: sine tones, 20 Hz-20 kHz logarithmic sweep, white & pink noise for testing speakers and room acoustics • Peak list: the strongest peaks with harmonics tagged • Up to 4 frequency markers on the chart • Calibration offset (±20 dB) to match a reference meter • Extra-high resolution 16384 FFT • High-resolution image export and no ads, forever Everything is processed on your device - no audio is ever uploaded. Microphone access is the only permission needed. Perfect for musicians, audio engineers, students, DIY speaker builders, hum & noise hunters, and anyone curious about the sounds around them.

Screenshots

MuPsych4 screens
Spectrum4 screens

Verdict

The call

The clearest difference is in-app purchases: MuPsych at none against Spectrum's 1. MuPsych also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Spectrum sells 1 one-off in-app purchase. MuPsych asks for nothing beyond the download.

UpkeepUpdate frequency

MuPsych ships an update every 9 days, Spectrum every 8 days. The most recent releases landed on September 9, 2026 and September 18, 2026 respectively.

Scorecard2 real differences Ā· 4 level
MuPsych versus Spectrum: the parameters behind the verdict, then further details
ParameterMuPsychSpectrum
PriceFreeFree
Update frequencyEvery 9 daysEvery 8 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.0
Further details — not scored
Size49 MB89 MB
Age rating12+4+
DeveloperWilliam RandallSEONYONG LEE

In-app purchases

None

MuPsych

No in-app purchases

1 purchases

Spectrum

One-time1
  • Remove Ads$4.99

Questions

Is MuPsych free?
MuPsych is free to download, with no in-app purchases.
Is Spectrum free?
Spectrum is free to download, with in-app purchases available.
Do MuPsych or Spectrum have ads?
Spectrum shows ads; MuPsych does not.
Which is updated more often, MuPsych or Spectrum?
MuPsych ships an update every 9 days, and Spectrum every 8 days. Most recently, MuPsych was updated on September 9, 2026 and Spectrum on September 18, 2026.

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