Sound Level Meter vs CarWidget

Measure noise like a pro — straight from your iPhone. Sound Level Meter: Decibel turns your iPhone into a precision SPL meter, engineered to the IEC 61672-1 international standard. Protect your hearing, document a noise complaint, tune a studio, or pre-check a workplace - reliable readings in seconds, clean A4 PDF reports in one tap. KEY FEATURES • Real-time dB readings with A, C and Z weighting — switch on the fly • Fast (125 ms), Slow (1 s) and Impulse time integration — the modes pros use • 1/3-octave frequency analysis • Multiple live visualizations: histogram, gauge, circle meter, applause meter, basic graph • All metrics in one place: LAeq, Min, Max, Avg, Peak • Save full measurement sessions with timeline, location and notes • Calibration screen for fine-tuning against any reference meter • Available in English, French, German, Spanish, Italian, Japanese, Chinese • Distraction-free dark interface focused entirely on your data DESIGNED FOR ACCURACY Sound Level Meter: Decibel follows the IEC 61672-1 sound level meter specification: • True biquad-cascade A and C weighting filters — not generic high/low-pass approximations • Exponential averaging on squared pressure (the correct method) • Per-device calibration based on the iPhone hardware actually in use • User-adjustable offset to align with any reference meter or calibrator IDEAL FOR • Audio engineers tuning studios, venues and rehearsal spaces • Workplace safety pre-checks before a formal acoustic survey • Musicians, DJs and podcasters watching their hearing exposure • Parents monitoring nursery or kids' bedroom noise levels • Tenants documenting noise from neighbors, traffic or construction • Anyone serious about long-term hearing health FAQ How accurate is it? After one-time calibration against a known reference, expect 2–3 dB of typical accuracy in the 40–95 dB range. Maximum measurable level is bounded by your iPhone hardware (around 104–110 dB). Does it replace a certified sound level meter? For monitoring, awareness and personal documentation: yes. For legally certified acoustic measurements, dedicated class 1/2 hardware remains the reference. Can I export my measurements? Every saved session generates an A4 PDF with full stats and the timeline graph. Print it, email it, AirDrop it — anywhere PDFs work. Why do I see different values than another decibel app? iPhone microphone sensitivity varies between models, and each app handles calibration differently. Use the built-in calibration screen to align with a trusted reference. How is my data handled? Sessions are stored locally on your iPhone. Nothing is uploaded — your acoustic data stays yours. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy: https://sonometredecibelmeter.blogspot.com

CarWidget 是一款精心打造的 iOS 桌面小组件工具箱，提供多种实用小组件，让你的主屏幕兼具美观与功能。 【日期天气小组件】 大字体实时时钟，公历农历双日期显示，搭配当前天气、气温和全天高低温，一眼掌握今日信息。 【天气预报小组件】 当前气温 + 未来 3 小时逐时预报 + 明后两天天气概览，出门前瞄一眼就够了。数据来自 Apple WeatherKit，准确可靠。 【停车定位小组件】 记录停车位置，桌面直接显示地图缩略图和地址。支持添加备注（如"B2 靠近电梯口"），还能一键导航到停车位，支持苹果地图、高德地图、百度地图三大导航。 【已保存位置】 地图/列表双视图切换，保存常去的地点，从小组件直接点击导航，分页浏览，快速找到目标位置。 【木鱼小组件】 桌面敲木鱼，每敲一次功德 +1。支持累计功德和今日功德两种显示模式，4 种木鱼音效可选，解压又有趣。 【照片轮播小组件】 从相册选取最多 10 张照片，自动轮播展示在桌面上。支持自定义轮播间隔（5/15/30/60 分钟），点击手动切换，让主屏幕时刻焕新。 【BMW 车辆信息】 绑定宝马账号后，桌面小组件实时显示车辆电量，方便新能源车主随时查看续航状态。 更多特性： · 所有小组件均为精致的小尺寸设计，不占用过多桌面空间 · 深色风格 UI，搭配任何壁纸都好看 · 点击小组件即可刷新数据，操作直觉化 · 天气数据自动缓存，省电省流量 · 坐标自动转换，中国地图定位精准无偏移 如果你正在寻找一款集实用与趣味于一体的小组件合集，CarWidget 正是你需要的。