Audio Frequency Counter

Contains ads
3.21K reviews
Content rating
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About this app

Frequency counter based on the microphone input. Counts when the input rises or falls past a set level and converts into into frequency or a time period. FOR INDICATION ONLY. Results depend on your device and its hardware. If you just want to know the frequency of a sound with harmonics (e.g. mucial instrument), a FFT based app such as keuwlsofts spectrum analyser or guitar tuner (both free) will be better. This app can provide more accurate frequency measurement for single frequency input signals. Features include:

Display of triggered event count and frequency or time period.
Graph of input signal, 2.5 ms/div up to 640 ms/div.
Gate time of 0.1s, 1s, 10s or 100s.
Gain from x1 to x1000.
Trigger on rise or fall.
AC or DC coupling.
Set a noise level so new event is not triggered until the signal has first passed this level.

More details can be found on the website.
Updated on
Dec 5, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted
3.21K reviews
A Google user
February 26, 2019
top notch app, while it's not as accurate as regular frequency counter, it still does it job well. i tested this on a 1000 hz and 500 hz audio and the frequency that was shown in the app was correct.
59 people found this review helpful
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A Google user
October 5, 2018
The reading i get is accurate , as i wanted to test a gadget i download this app. The gadget is anti repellent insects , and since it works on low frequency i couldn't know if the device is working or not so i tried few apps and discovered this app and the results was accurate.
154 people found this review helpful
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August 28, 2020
I tested this app with pure tones and it works perfectly. Dont go buy the titles on you tube that suggest 528 hz most of them are not even close to accurate. Look for pure tones with this app.
45 people found this review helpful
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What's new

v1.13 Updated to use newer code methods to better target and run reliably on devices beyond 2022.
v1.14 Minor bug fix.