DB-Decibel sound level meter

An app that can provide real-time distributed data, with the following features:
-High precision measurement, real-time measurement
-Provide location information for measurement
-Provide detailed measurement reports
-One click sharing of measurement data
-Support exporting audio data
-Minimalist design, one click measurement
-Supporting decibel meter data
I Payment: The user deducts the payment through their iTunes account and makes the payment upon confirmation of purchase
II Renewal: The user's iTunes account will be charged within 24 hours before expiration, increasing the corresponding subscription period
III Cancel Renewal: To cancel the renewal, go to "iTunes Store and App Store" ->click "App ID", go to the "Account Settings" page, click "Subscription", and select unsubscribe
IV Privacy Agreement: https://docs.qq.com/doc/DVGVuV3BPSnFieEhl
V、 Terms of Use: https://docs.qq.com/doc/DVEtuRkJ1bGxoR3RS