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Frequency Counter Pro


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Want to know the precise frequency of a signal or the visual shape of a signal? Then you’ve come to the right app. Use your device’s microphone to see waveform, frequency and even the musical note of a signal in real time with Frequency Counter.

What's New in Version 1.2

Design updates & performance improvements for iOS 7.

iPhone Screenshot

iPhone Screenshot 1
iPhone Screenshot 2

Customer Reviews

Excellent Frequency Counter〰

Easy to use and accurate plus a well designed display (user interface). Looks like using a classic oscilloscope but auto ranging. Under the "tube" is where the alpha-numeric frequency counter & note/scale are displayed.

Good from e2 to e6

Seems the detect my pianos frequencies from E2 to E6. Would like more notes but good in that range... Frequencies don't seem to exactly match my strobe tuner app... + or - 1-2 cents.

Still looking for greater range and the ability to calibrate if it's off a bit.

I don't like it.

I bought this app for my physics exam project. I didn't know that it didn't display the hz. We had to buy another app because this one didn't have the hz. Waste of time and money.

Frequency Counter Pro
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  • $0.99
  • Category: Utilities
  • Updated: Nov 14, 2013
  • Version: 1.2
  • Size: 6.9 MB
  • Languages: English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish
  • Seller: CATEATER, LLC

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

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