Apps like Smart Meter Pro

Here are some great alternatives to Smart Meter Pro by Smart Tools co. :
Vibration Meter & Sound Meter
Vibration Meter & Sound Meter
★4.1
Vibration Meter
Vibration Meter
★4.3
Sound Level Meter
Sound Level Meter
★4.0
Sound Meter
Sound Meter
★4.2
Sound Meter
Sound Meter
★4.5
Decibel Sound Noise Meter
Decibel Sound Noise Meter
★4.4
Sound Meter
Sound Meter
★4.6
Sound Meter - decibel meter
Sound Meter - decibel meter
★4.8
Sound Meter
Sound Meter
★4.8
Sound Meter
Sound Meter
★4.6
Sound Meter Decibel
Sound Meter Decibel
★4.6
Sound meter : SPL & dB meter
Sound meter : SPL & dB meter
★4.5
Sound Meter - Decibel Meter
Sound Meter - Decibel Meter
★3.5
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
★4.7
Speaking Lux Meter
Speaking Lux Meter
★4.4
Sound Meter
Sound Meter
★4.6