Decibel X PRO: dBA Noise Meter for Android

11 things about Decibel X PRO: dBA Noise Meter

1. * Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period.

2. You can cancel your subscription or free trial in the iTunes settings at least 24-hours before the end of the free trial period.

3. Subscription with a free trial period will automatically renew to a paid subscription.

4. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference.

5. The cancellation will take effect the day after the last day of the current subscription period and you will be downgraded to the free service.

6. * Subscription payments will be charged to your iTunes account at confirmation of your purchase and upon commencement of each renewal term.

7. Our app turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you.

8. Our success lies at the intersection of expertise in sound communication, listening to our dear users, and our vision to build a great product.

9. "Decibel X" is the leading noise meter app on the market, which has highly reliable, pre-calibrated measurements and supports dBA, dBC.

10. Have you ever wondered how quiet your surroundings are or how loud is a rock concert or football match? "Decibel X" will help you answer all of those.

11. - Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy.