Herts measrement 1/5
By Don't waste my money
Does not do what it says it will. It very rarely gives a measurement in hertz. Only shows a useless and unlabeled graph.
Testing my home made wind chimes 5/5
I bought this to measure the frequency of the tones from a five-tube wind chime I made. My iPhone is a 5C.
The 'scope display is of little use, but the frequency shown below the 'scope is stable and spot on. My design was tp produce and E note at 659 Hz; this app measured it at 658 Hz; damned good. I found no other app that offered the measurement of an arbitrary frequency. ANd this was only $0.99
I wonder if the other reviewers that faulted this app have a defective mic.
Apple needs to add a negative star to better rate apps like this. Not only does the app itself do nothing of value, the developers " instructions/help" mode is useless. This shows how little effort and thought went into development.
Doesn't do anything except waste space. This app is trash.
Simply The Worst 1/5
Nothing is worse than a charlatan wasting people's time with a bogus [app]
Great app 4/5
Super sensitive receiver. Excellent!
Don't buy 1/5
It is awful. DONT BUY
Poor description 2/5
By Dropped Db
Doesn't seem to pick up anything below 73hz.
I don't like it. 1/5
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.
Excellent Frequency Counter〰 5/5
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.
Interesting but... 3/5
By golden cindy
Needs to display the Hz!
Poor App. 1/5
By Justin E.
Will only display frequency of clean pure tones and even that is hit or miss. Being in an environment where that is possible is often very impractical.
Good from e2 to e6 4/5
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.
What a total piece of crap application!
I wanted to be able to test frequencies tapping watermelons. This thing won't even test a frequency of a simple whistled note. What a waste of my money.
No, numbers, no measurement of background noise frequency, no instructions, of no value. I waster the purchase price.
Frequency Counter 4/5
By Dog boy 4
Although I seldom review an App, I was so intrigued by the Frequency Counter Pro that I had to comment. I tested this counter on an iPhone-4 as well as the newest iPad using iOS6. I found the displayed frequency to be quite accurate between approximately 75 and 2000 Hz. Beyond 2kHz, the display began to show errors, but interestingly these were harmonically related to the test frequencies. For example, a 4000 Hz tone may display as 2000, or a 2800 Hz test tone may display 400 Hz (2800 being the seventh harmonic of 400) perhaps. Maybe Cat Eater, the developer can explain this more thoroughly?
Other than this quirk, the graphics are clear and simple, with a retro oscilloscope look. I am however puzzled by the red indicator lamp below the display. It looks like the power on/off button on an Apple computer, but does nothing if you touch that area of the screen. The only touch screen user interface is to control the amplitude of the displayed signal. For example, if you we're sampling a quiet audio signal, you would set the amplitude to the high mode, while low mode may be best for loud or noisy environments.
My only wish, besides showing actual frequency up to perhaps 10 kHz, would be a display hold button. Bottom line is that the App is interesting to play with, and would be useful in several areas where you need to identify an audio tone or musical note.
Great app 5/5
Does exactly what it should. Shows hertz and note of any sound. Perfect for my daughters science project.
Nice work! 5/5
My first review: it works great!
complete garbage 1/5
By Another xzwytr
Tried to check this against several accurate tuning forks and instruments. Not worth the buck I paid for it.
Displeased no numbers 1/5
No numbers, just pattern
Great tuning app 5/5
Very simple - downloaded it for an emergency violin tuning and it worked flawlessly - thanks!
Rather pleased... 4/5
By This Name Is Now Taken
I've only had this app for a minute or so now, but it works well. It is a bit odd, in my opinion, how the frequency only shows up when a tone is being played. Backround noise will not show a frequency. This makes sense, of course, but I wish it said something like "Frequency: --" instead of merely a blank spot where the frequency goes. I was very pleased to find that it actually said the note name in addition to the frequency, like A# or whatever. I have yet to test it with a piano, but with whistling notes, it appeared to respond rather well. All things considered, an excellent app.