Sound monitor FFTWave

Great, accurate simple to use app. Would love to see additional features like variable integration time, scalable amplitude, zoomable to band of interest. Same features as an expensive audio spec an, not asking for too much am I? And yes, worth paying for to me.

amazing, it's actually really accurate - checked with sine tone generator on xiaomi redmi 4 phone. the frequencies are exactly as shown.

What a wonderful look into the invisible world. The waves from the lake ( great ) down the street are poetry to listen too but take on a whole new meaning with this. The fridge is pretty cool too...

Great app! Might I suggest external mic input to make it more sensitive

Instant feedback on learning to whistle a perfect 2600Hz.

Thanks for being free but more importantly, being well coded.

Please have the info link in the app go to the English help page. Also please write the "what's new" in English.

Tiny download and way better than the other noise meters

New toy $-)

No screenshots - no use

Thank you, it is superb, please continue further development if any, very useful tool

Very rice

Peak holds

Option to keep screen on would be useful

Recording options

Very fast update FFT

.yes

Excellent accuracy. ..

Excellent

Simple

8000 del. A bit sharp.

This works very well for determining the precise frequency of an unknown source with multiple harmonics (like a musical instrument, or the buzzer component in SHENZHEN I/O.)