Noise Decibel Meter vs KeepKnow

Introducing the professional "Noise Decibel Meter" app, now officially available! Curious about the noise levels in your surroundings? Want to check if the noise in your home, office, or outdoor environment exceeds safety standards? The "Noise Decibel Meter" is your perfect choice! Key Features: • Real-Time Noise Measurement: Accurately measure environmental noise using your phone’s microphone and display the real-time decibel level. • Noise History Records: Easily view past noise measurements and track long-term trends. • Data Watermark Camera: Add noise data as a watermark to photos or videos for easy documentation of current noise conditions. • Noise Reference Analysis: Analyze the current noise levels with detailed explanations, helping you understand the potential impact on your health. • Easy Sharing: Share your measurement results via social media or email with friends and colleagues. • User-Friendly Interface: Simple and intuitive design that’s easy to use, no technical expertise needed. Recommended Use Cases: • Detect noise pollution in homes, schools, or workplaces. • Measure noise levels at concerts, in traffic, or on construction sites. • Help manage noise levels for a better living and working environment. Pro Version Features: • Unlimited access to all features. • Add decibel data watermarks to photos. • Unlimited noise data export. • Extended measurement duration. When you confirm your purchase or start a new subscription period, your Apple iTunes account will be charged within 24 hours before the subscription expires. Upon successful payment, your subscription will be renewed for the next period. Subscriptions that include a free trial will automatically convert to a paid subscription. You can cancel your subscription or free trial in your iTunes settings at least 24 hours before the free trial ends. Subscription cancellation will take effect the day after the current subscription period ends, and your access to the subscription features will be revoked. User Agreement: https://docs.qq.com/doc/DUHdIdEVRRkhRTEl3 Privacy Policy: https://docs.qq.com/doc/DUEpyaWVjVUhkbFhT

The KeepKnow App connects to smart battery systems via Bluetooth and Wi-Fi, enabling real-time monitoring, remote control, and multi-battery management for energy storage applications