It is a decibel test tool focusing on noise detection
-Used for noise detection and testing at work sites, squares and other public places.
-Can be widely used for noise measurement in various environments.
-Can provide the decibels reached by noise so that relevant measures can be taken to control and reduce noise.
Subscription Related.
1、Users can use the decibel test, noise detection and other functions for unlimited times only after they have subscribed through paid subscription.
2. The subscription fee will be deducted from the iTunes account when the user confirms the purchase, with a free three-day trial and automatic renewal at $39.99/year.
3. users can turn off auto-renewal 24 hours before the end of the current subscription, otherwise the subscription will be automatically renewed.
4. the Apple ID of the automatically renewed subscription will be automatically deducted from the iTunes account 24 hours before the expiration of each billing cycle and the corresponding validity period will be extended.
5. Users manage the subscription service, i.e., they can go to their user accounts to set off automatic subscriptions after purchase.
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