Looking for free sound level adjust apps? 19 of our 232+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
Measure ambient noise levels with calibrated dBA readings that mimic human hearing. Compare current sound levels to familiar benchmarks and review historical data with intuitive graphs. Export your findings for further analysis with optional pro features.
This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.
What We Love
🚀 Free and ad-free
👍 Simple and intuitive interface
⚖️ Accurate and reliable measurements
💡 Useful for monitoring noise levels in various environments
Room to Improve
🐛 Occasional bugs and crashes
🔌 Issues with external microphone support
🔋 Can drain battery when running for extended periods
Measure, record, and analyze sound levels in your environment. This app offers precision metering, noise elimination tools, hearing protection features, and home audio calibration. It provides detailed reports and can be used with device microphones or external ones.
What are the best sound level adjust apps for iPhone?
SoundLevel: Decibel Reading tops our sound level adjust apps ranking as of May 2026, with a 3.0-star average from 4 App Store ratings, and it's free to download.
Are there free sound level adjust apps for iPhone?
Yes — 19 of the top sound level adjust apps we rank are free to download, including SoundLevel: Decibel Reading and NIOSH Sound Level Meter.
Does SoundLevel: Decibel Reading have ads or in-app purchases?
SoundLevel: Decibel Reading has no ads and offers in-app purchases, according to its App Store listing as of May 2026.
How many sound level adjust apps are on the App Store?
We track 232+ sound level adjust apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
What does the Sound Level app do?
This app provides a simple yet powerful tool to measure the current sound level of your environment. It displays readings calibrated to dBA, which is a weighting that closely matches how the human ear perceives sound. You can also see comparison values to understand what the measured sound is equivalent to.
What are the key features of Sound Level?
Key features include quick sound level measurements, a beautiful and intuitive user interface, tracking of peak and maximum volume counts, and baseline sound comparisons. All results are graphed, allowing you to review past measurements.