Sound Meter Plus vs DayNote

Sound Meter is a utility tool that shows decibel values by measuring the environmental noise, displaying dB values in various forms. Features: • Toggle tap to start or stop recording sound data • Save dB sound data image into Camera Roll • Save recorded sound into the Files app • Copy dB sound data to Clipboard for advanced operations • Show average, minimum, and maximum decibel values per second • Indicate decibel levels with a graph line • Display the current noise reference • Display decibel levels with a graph line • Display elapsed time of decibel readings • Calibrate the decibel readings A sound level meter is used for acoustic measurements. It is commonly a hand-held instrument with a microphone. The diaphragm of the microphone responds to changes in air pressure caused by sound waves. That is why the instrument is sometimes referred to as a Sound Pressure Level Meter. The decibel is a unit of measurement used to express the ratio of one value of a power or field quantity to another on a logarithmic scale. This logarithmic quantity is called the power level or field level, respectively. It can be used to express either a change in value or an absolute value. A noise level chart showing examples of sounds with dB levels ranging from 0 to 180 decibels: 180 – Rocket launch 140 – Jet engine at takeoff 120 – Thunderclap 110 – Rock band 100 – Motorcycle 90 – Lawn mower 80 – Alarm clock 70 – Shower 60 – Conversational speech 50 – Light traffic 30 – Whisper 20 – Rustling leaves 10 – A pin dropping 0 – Healthy hearing threshold Sample Sound Data: \[50.256, 51.245, ..., 65.359] You can calibrate your device with an actual sound meter (dBA). Microphones in most devices are limited and should be used as auxiliary tools. For more accurate dB values, we recommend using a dedicated sound level meter. Thanks for your support! Visit nitrio.com for more apps for your iOS devices.

DayNote is an elegant journaling application that helps you record life's moments, capture inspiration, and cherish beautiful memories. DayNote is ad-free, account-free and server-free. Your data stays on your device and syncs across your devices via Apple iCloud. We cannot access or view your information. Core Features: Journal Management Create and edit journal entries with rich text formatting, add tags for categorization, drag-and-drop sorting, and easily organize your thoughts. Media Support Insert photos, videos, and other multimedia content to record more vivid life moments, with support for image recognition and voice input. Calendar View An intuitive calendar interface to view and manage journals by date, easily review past entries, and support quick navigation. Data Statistics Detailed writing data analysis with visual charts showing writing frequency and word count statistics, supporting daily/weekly/monthly/yearly views to track your writing habits. Smart Features CloudKit synchronization ensures real-time data sync across multiple devices, never losing your precious memories. Suitable For: Students: Record study notes and cherish campus life Professionals: Document work reflections and organize thought processes Creators: Capture inspiration and accumulate creative materials Anyone who loves life and enjoys recording moments Start your journaling journey and let every precious moment be properly cherished. Auto-Renewal Membership Service Description [Subscription Period] - Annual Subscription (1 year) - Monthly Subscription (1 month) [Subscription Price] - Annual Membership auto-renewal price: $9.9 per year - Monthly Membership auto-renewal price: $0.9 per month [Payment] Upon confirmation of purchase, payment will be deducted from your iTunes account. [Auto-Renewal] The renewal fee will be deducted from your iTunes account 24 hours before the end of the current subscription period. Upon successful payment, the subscription period will extend by one cycle. [Cancel Auto-Renewal] To cancel your subscription, manually open "Settings" on your iOS device -> tap your "Apple ID", select "View Apple ID", enter the Account Settings page, tap "Subscriptions", then cancel the subscription. If you do not turn off the subscription at least 24 hours before the end of the subscription period, it will automatically renew. 【Subscription Terms 】 https://docs.qq.com/doc/DVWZwYmpvWWhoWHJw