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FFT Plot

ONYX Apps · Music · United States store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card
Revenue a month, worldwide EST
$339
Likely $113 to $1K
New ratings
Tracking
Daily counts start building from today
Rating
4.8 of 5
90 ratings in this store
Countries it ranks in
0
was 0 on Oct 19, 2026

Revenue

Estimated from the grossing charts of Oct 26, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$4.1K
1.0 new ratings a month on average since launch
EST. LIFETIME DOWNLOADS
3.1K to 9K
Estimated from ratings count
WHERE ITS USERS ARE · SHARE OF RATINGS
  • United States 90 ratings53%
  • Germany 22 ratings13%
  • Japan 21 ratings12%
  • United Kingdom 16 ratings9%
  • France 5 ratings3%
  • Canada 4 ratings2%
  • South Korea 4 ratings2%
  • Australia 3 ratings2%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (1.0 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
90
AVG RATING
4.76
PRICE
$9.99
AGE
14.0y
LAST UPDATE
2898d ago
VERSION
1.2.5
SIZE
7 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart.

DAYS IN A GROSSING CHART
1 / 30
COUNTRIES NOW
0 (was 0)
EST. REVENUE FROM CHARTS, DAILY · APP STORE ONLY EST
Show daily values
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026$6.1K · 1 country
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026not in a grossing chart
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
Oct 24, 2026not in a grossing chart
Oct 25, 2026not in a grossing chart
Oct 26, 2026not in a grossing chart
Best rank Sep 27, 2026: not ranked. Now: not ranked. Days at zero are days outside every grossing chart.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.1 reviews / week
  • Trendfalling
  • Recent reviews average4.5 stars
  • Recent 1 and 2 star share8%
From the latest 75 written reviews, covering 5043 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases792 days
From the last 5 versions listed on the App Store.
RATING BREAKDOWN
90 ratings
5★89%
4★4%
3★2%
2★2%
1★2%

What users want

From the latest 75 reviews on the United States App Store, Jan 4, 2013 to Jul 13, 2025: 8% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Wrong or poor results33%

2 of the 1 and 2 star reviews.

★★★★★ If this were fairly clarified, which it isn't, I would not have purchased this as it is really useless when those features are what you need.
★★★★★ I think I bought the wrong app.
WHAT THEY ASK FOR
  • It would be nice if I could figure out how to use an accelerometer with it 5★, May 24, 2018
  • Well worth the money if you need a good FFT 5★, May 24, 2016
  • Also, please add split screen support for iPad! 5★, May 16, 2016
  • Please make the frequency axis fully scalable. 3★, Aug 31, 2015
  • The total DB needs a function to change the weighting A, B or C. 4★, Jul 24, 2013
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Accurate, great results22%

14 of the 4 and 5 star reviews.

★★★★★ It runs great and seems quite accurate.
★★★★★ Fantastic! Apps like this are the reason we don't need to buy a stupidly overpriced bespoke piece of gear for every little niche... unless we want to! Keep up the great work!
★★★★★ It's a nice, simple frequency analyzer that works well.
Easy to use20%

13 of the 4 and 5 star reviews.

★★★★★ easy to use great for showing you what your ears are hearing
★★★★★ I greatly enjoy how feature full and yet simple this app is.
★★★★★ It's a nice, simple frequency analyzer that works well.
Useful, it helps17%

11 of the 4 and 5 star reviews.

★★★★★ To get a better result for longterm runs a waterfall diagram wold be really helpful.
★★★★★ The ability to decode the frequency peak to a musical note is a natural, but extremely useful feature...
★★★★★ Nice, simple app. It does the job well. I downloaded this app to test the frequencies in songs, as I curious what are the notes sung.
Fun, addictive6%

4 of the 4 and 5 star reviews.

★★★★★ I greatly enjoy how feature full and yet simple this app is.
★★★★★ If you're curious about tonals, noises, or how loud that concert really is.
★★★★★ Accurate, entertaining and informative.
Fast5%

3 of the 4 and 5 star reviews.

★★★★★ It's fast/slow and window choices, and look and feel are very natural for working in the frequency domain.
★★★★★ It look like a you and NOT a tool that I thought I could use for quick analysis of NVH application.
★★★★★ This app is instant and there is no setup required.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, United States App Store.

★★★★★Jul 13, 2025
good stuff

heard about it from chris on his rift amps youtube channel. easy to use great for showing you what your ears are hearing

★★★★★Mar 22, 2024
Disappointing

Scale ranges can’t be customized and cannot see low frequencies below 20Hz and DC value. If this were fairly clarified, which it isn’t, I would not have purchased this as it is really useless when those features are what you need.

★★★★★Aug 23, 2020
Great job

This app does exactly what it claims to and looks great. I’ll be using it in the classroom soon to demonstrate concepts like “narrow sound frequency band”. Thanks!

★★★★★Jul 31, 2020
Review From an EE in Signal Processing: Excellent!

I’m a BSEE (University of Washington, 1995) with experience and a bunch of patents in signal processing. This app is an outstanding tool for understanding the spectral content of an audio signal. It was clearly designed by someone with some expertise in the field, and it’s a joy to use.

★★★★★Jul 29, 2020
Absolutely fabulous

Works perfectly. My only wish would be to also look at the waveform in the time domain. I use this app for testing new speakers. You will not be disappointed.

★★★★★Aug 20, 2019
Great app, needs a way to export data

I greatly enjoy how feature full and yet simple this app is. It runs great and seems quite accurate. One thing I think is dearly missing is a way to export the signals measured to a file (like csv). Taking pictures is great for qualitative comparison but this tool would be way more valuable if it could be quantitative.

Apps like this

Same category, earning about as much.

SongMix$355 a month ESTTrack Notes: Music Annotation$323 a month ESTMulti Track Song Recorder Pro$319 a month ESTSheet Music•$377 a month ESTSPL Meter$303 a month ESTAi Audio Enhancer$391 a month ESThar•mo•ny$393 a month ESTClip Ringtones$396 a month EST

Store screenshots

ScreenshotScreenshot

App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

No App Store ads in the EU
None in the last 90 days.

Apple only publishes ads shown in the EU (EU Digital Services Act), with a 7 day delay. An app that advertises only outside the EU shows nothing here.

Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

Meta Ad Library ↗Active Facebook and Instagram adsTikTok Creative Center ↗Top performing TikTok adsTikTok creators ↗Organic videos mentioning the appInstagram ↗Reels and posts under its hashtagYouTube ↗Reviews, tutorials and ShortsDeveloper site ↗Landing page and pricing

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

audio3sound2fft2tuning2

What's new in 1.2.5

Thank you for helping us improve FFT Plot app! Please rate it on the App Store now, so we can make it even better! ● Toggle between Flat, A and C weighted modes

Released Oct 20, 2012. Current version shipped Nov 19, 2018.

Store 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

See this store page in another country

Prices, ranks and reviews are per country. Revenue above is already worldwide.

United KingdomGermanyJapanBrazilIndia

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