Comparison

FFT Plot vs Decibel meter for personal use

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

Head to head
About

FFT Plot

This real-time audio analysis app provides precision sound measurement and visualization. It's ideal for detecting sound issues, room tuning, and speaker calibration, offering detailed frequency analysis for musicians and audio professionals.

Highlights
  • Real-time audio analysis
  • Frequency detection
  • Averaging options
  • Window functions
  • Linear and logarithmic scales
  • Weighting options
  • Draggable cursors
Read full description

***** "I use this app to detect sound feedback problems on live show and it became helpful and practic." FFT Plot is a powerful real-time audio analysis app. Designed with musicians and recording engineers in mind, it can also be used by anyone interested in the world of sound. Ideal for room tuning or speaker tuning, the app enables portable, precision audio measurement and visualization. Feature Highlights: ● FFT Size (2048 to 16384 points) ● Fast, Slow and Infinite Averaging ● Window function (Hamming, Hann, Rect) ● Peak Frequency detection ● Linear and Logarithmic scale ● Toggle between Flat, A and C weighting ● Pan to adjust visible dB range ● Draggable cursors ● iPhone X ready Audio credits: "Evening Birdsong" and "Cuckoo" by Benboncan

About

Decibel meter for personal use

This app measures ambient noise levels and offers features to suppress unwanted sounds like traffic and conversations. It provides real-time analysis, background operation, and historical data for a comprehensive understanding of your sound environment.

Highlights
  • Noise level measurement
  • Background noise suppression
  • Background measurement operation
  • Peak and average noise level calculation
  • Spectral noise analysis
  • Measurement history access
  • UI design for beginners and pros
Features
Read full description

Hello! Have you ever wondered what a noisy place this world is? Even at night, in a quiet room, it can actually be quite noisy. By the way, regular exposure to sound above 100 decibels lead to hear damage and even permanent hearing loss. This is not a list of facts for a horror movie, but reasons why you, like us, might once need a sound level meter. Our application is one of the very few on the market that can not only measure the level of noise around, but also help to suppress unwanted sounds: traffic, conversations, the general environment. We wanted to make an application that would determine the level of noise around. Minimalistic, not overloaded with extra features, but with everything you need: - Not only measuring the noise level, but also hints when to protect yourself from it 
- Work in the background, which allows you to take measurements without even taking out your phone - Determination of peak values ​​of the sound level and calculation of the average noise level - Simple and clear spectral noise analysis - Access to the history of your measurements for further analysis - Carefully crafted UI design that will be clear to both beginners and pros We like the result and regularly use the application for our purposes. But if you have any comments, ideas and suggestions, we will be very happy to receive your feedback. ************************************************************* • Subscription Decibel Meter Plus get access to all functions of the application. • You can turn off the auto-renewal at any time: you'll find the option to do this change to a different payment plan in the settings of your iTunes and App Store account. • The first time you can try the free trial for 3 days. After that, your account will be automatically charged for the subscription if you will not stop it before the end of the free trial. • The length of the subscription is 1 month, this subscription is auto-renewing. You can stop the subscription at any moment; • Account will be charged for renewal within 24-hours prior to the end of the current period, and is identical to the cost of the renewal. • Removing the app doesn’t automatically cancel the subscription. ATTENTION: before you subscribe please read: Privacy Policy(https://rabosh.kz/privacy) Terms Of Use(https://rabosh.kz/tos/noize)

Screenshots

FFT Plot1 screens
Decibel meter for personal use4 screens

Verdict

The call

The clearest difference is price: Decibel meter for personal use at Free against FFT Plot's $9.99. Decibel meter for personal use also leads on update cadence (every 5 weeks vs every 17 months) and review sentiment (100% vs 84%). FFT Plot's advantage is in-app purchases (none vs 1) and rating (4.8 vs 4.5). On ads 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

Decibel meter for personal use is free to download; FFT Plot costs $9.99 up front. Decibel meter for personal use sells 1 in-app purchase, starting at $9.99 per month. FFT Plot asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FFT Plot holds the better App Store score, 4.8 against 4.5. Both are backed by a comparable volume of ratings — 90 and 28 respectively. Written reviews complicate that: 84% of FFT Plot's written reviews are positive against 100% of Decibel meter for personal use's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

FFT Plot ships an update every 17 months, Decibel meter for personal use every 5 weeks. The most recent releases landed on September 23, 2026 and September 16, 2026 respectively.

Scorecard8 real differences · 2 level
FFT Plot versus Decibel meter for personal use: the parameters behind the verdict, then further details
ParameterFFT PlotDecibel meter for personal use
Price$9.99Free — better
Rating4.8 (90 ratings) — better4.5 (28 ratings)
Positive reviews84.4% of reviews100.0% of reviews — better
Number of ratings90 — better28
Update frequencyEvery 17 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size7 MB18 MB
Age rating4+4+
DeveloperONYX AppsSvetlana Rabosh

Customer experience

FFT Plot

All ratings90 ratings
Positive93.3%
Neutral2.2%
Negative4.4%
Written reviews109 reviews
Positive84.4%
Neutral6.4%
Negative9.2%

Decibel meter for personal use

All ratings28 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FFT Plot

No in-app purchases

1 purchases

Decibel meter for personal use

Subscriptions1
  • Decibel Meter+3 Days trial$9.991 Month

Questions

Is FFT Plot free?
FFT Plot costs $9.99, with no in-app purchases.
Is Decibel meter for personal use free?
Decibel meter for personal use is free to download, with in-app purchases available.
Which has better reviews, FFT Plot or Decibel meter for personal use?
FFT Plot is rated higher. FFT Plot averages 4.8 out of 5 from 90 ratings, while Decibel meter for personal use averages 4.5 from 28 ratings.
Do FFT Plot or Decibel meter for personal use have ads?
Neither FFT Plot nor Decibel meter for personal use shows ads.
Which is updated more often, FFT Plot or Decibel meter for personal use?
FFT Plot ships an update every 17 months, and Decibel meter for personal use every 5 weeks. Most recently, FFT Plot was updated on September 23, 2026 and Decibel meter for personal use on September 16, 2026.

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