Tide Chart Master vs Decibel：db Sound Meter

The Tide Chart supports viewing tides in multiple regions around the world. Through a clear and easy-to-understand line chart, you can intuitively check the changing trend of tides. While checking the tides, it also supports viewing the 7-day weather forecast and sunrise/sunset times. It provides a variety of practical tools, including temperature measurement, humidity measurement, air quality measurement, and decibel detection. The compass helps you clearly distinguish directions and avoid getting lost when checking the tides. Subscription Instructions: -- Subscription Types: Monthly Subscription, Semi-annual Subscription, Weekly Subscription, Quarterly Subscription. -- Subscription Price: Please refer to the subscription page within the app for specific subscription prices. -- Subscription Payment: When you confirm the purchase of a subscription, the payment will be deducted and charged to your iTunes account. -- Subscription Renewal: The subscription will be automatically renewed and charged within 24 hours before the current period expires. After the charge is successful, the subscription period will be extended to the next cycle. -- Subscription Cancellation: If you need to cancel the renewal service, you must do so at least 24 hours before the end of the current subscription period. The specific steps are: open your mobile phone → enter Settings → click "Apple ID" → select the "Subscriptions" page → choose the subscription you want to cancel. Privacy Policy: https://www.yuque.com/jiangdiwangjide/iwnktm/wys3zw46efxxixfb?singleDoc# Terms of Service: https://www.yuque.com/jiangdiwangjide/iwnktm/fgfc5ghovdgo9he4?singleDoc#

This is an efficient and practical noise measurement tool that allows you to accurately measure noise anytime, anywhere. It provides recording, photography, and video recording to help you easily manage noise. [Function Introduction] Professional decibel monitoring: Dynamic real-time monitoring of decibel data. Photo recording data: Decibel watermark shooting recording data Real time video recording: detecting decibel changes at each time interval Monitoring Record Report: Downloadable Decibel Detection Record Form Decibel monitoring record: Detailed record of the detection data at that time 1.Payment: The user deducts the payment through their iTunes account and makes the payment upon confirmation of the purchase 2.Renewal: The user's iTunes account will be charged within 24 hours before expiration, increasing the corresponding subscription period 3.Cancel Renewal: To cancel the renewal, go to "iTunes Store and App Store" ->click on "App ID", enter the "Account Settings" page, click on "Subscription", and select "Cancel Subscription" 4.Privacy Policy: https://docs.qq.com/doc/DRkdDZUVKdUpMR1da 5.Terms of Use: https://docs.qq.com/doc/DRktSRXB2TnlqYlBY