Best Decibel Reader Free Apps

222+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated June 2026

Finding the right decibel reader free app can be overwhelming with so many options. We've analyzed 222+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Decibel Reader Free

Decibel Meter Sound Detector#1

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Editor's Choice
📊 Productivity
4.7😊(48K ratings)
FreeIn-App Purchases
Decibel Meter Sound Detector screenshot 1
Decibel Meter Sound Detector screenshot 2
Decibel Meter Sound Detector screenshot 3
Decibel Meter Sound Detector screenshot 4

Monitor your surroundings with this decibel meter app. It measures sound levels in real-time, providing clear visual analysis and advanced filtering options. Easily share your readings for documentation or further analysis.

What We Love

  • 👍 No bloatware
  • 👍 Quite useful
  • 👍 Excellent and useful app
  • 👍 Easy to use

Room to Improve

  • 🐛 Ads block settings
  • 🐛 Inaccurate readings
  • 🐛 Not sensitive at all
Sound Meter (Decibel)#2

Sound Meter (Decibel) by Unicom TOV

Measure the noise level
Strong Contender
🔧 Utilities
4.6😐(2.6K ratings)
FreeAds
Sound Meter (Decibel) screenshot 1
Sound Meter (Decibel) screenshot 2
Sound Meter (Decibel) screenshot 3
Sound Meter (Decibel) screenshot 4
Sound Meter (Decibel) screenshot 5
Sound Meter (Decibel) screenshot 6

This application measures and displays environmental noise levels in decibels. It offers various visual representations of the data, including gauges, graphs, and numerical readouts. Users can also save their measurement history.

What We Love

  • 🚀 Works perfectly
  • 👍 Easy to use and free
  • 👍 Good simple UI
  • 👍 Good basic sound level meter

Room to Improve

  • 🐛 Spelling mistake ('quiet' spelled as 'quite')
  • 🐛 Inaccurate readings compared to other apps
  • 🐛 Requires a subscription for basic recording
Decibel X:dB Sound Level Meter#3

Decibel X:dB Sound Level Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer
Worth Considering
🔧 Utilities
4.7😐(156K ratings)
FreeIn-App Purchases
Decibel X:dB Sound Level Meter screenshot 1
Decibel X:dB Sound Level Meter screenshot 2
Decibel X:dB Sound Level Meter screenshot 3
Decibel X:dB Sound Level Meter screenshot 4
Decibel X:dB Sound Level Meter screenshot 5
Decibel X:dB Sound Level Meter screenshot 6

This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.

What We Love

  • ⭐ Excellent app
  • 👍 Easy to use and understand
  • 🔍 Useful for various applications
  • 🎓 Helpful for hearing protection

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads

More Decibel Reader Free apps to explore

4
NIOSH Sound Level Meter
NIOSH Sound Level Meter
NIOSH Sound Level Meter
by EA LAB d.o.o.
Free

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.

Sound level measurementNoise dosimetryHearing hazard information
🔧 Utilities
(16K)
free
5
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Real-time decibel (dB) sound level monitoringIntegrated Spectrum Analyzer (FFT, spectrogram)Sleep tracking with sound recognition
🔧 Utilities
(36K)
freemium
6
Decibel Meter Master
Decibel Meter Master
Decibel Meter Master
Tool for measuring sound level
Free

This tool transforms your iPhone into a professional sound level meter. It accurately measures ambient noise levels, providing real-time decibel readings directly on your device.

Measures sound levelActs as a decibel meterUses iPhone as a meter
🔧 Utilities
(2.9K)
free
7
SoundLevel: Decibel Reading
SoundLevel: Decibel Reading
SoundLevel: Decibel Reading
by Smudge Apps Ltd
Free

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.

Quick sound level measurementsCalibrated dBA readingsComparison values
🔧 Utilities
(4)
free with in-app purchases
8
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
ReadEra – book reader pdf epub
Read books & PDF files easily!
Free

This app allows you to read and listen to books and documents in various formats, including PDF and EPUB. It offers text-to-speech functionality, customizable reading settings, and a built-in book manager for your library. Enjoy an ad-free and registration-free reading experience.

Multi-format ebook support (EPUB, PDF, MOBI, DOCX, etc.)Text-to-Speech (TTS) for listening to booksAd-free and registration-free experience
📚 Books
(222)
free
9
eBoox - fb2 ePub book reader
eBoox - fb2 ePub book reader
eBoox - fb2 ePub book reader
Read books comfortably
Free

This application provides a comfortable and customizable reading experience for a wide variety of e-book formats. It offers features like bookmarks, highlights, dark mode, and offline reading, with seamless online synchronization. Books can be easily uploaded from various sources, including cloud storage and email.

Supports EPUB, MOBI, FB2, DOC, TXT, and moreCustomizable fonts, text size, and brightnessDark mode and offline reading
📚 Books
(2.9K)
free
10
Voice Dream - Natural Reader
Voice Dream - Natural Reader
Voice Dream - Natural Reader
Text to Voice - Read Aloud TTS
Free

Transform digital and scanned text into natural-sounding speech with advanced AI. Listen to PDFs, web pages, emails, and books with customizable voices and reading styles. Supports numerous document formats and cloud services.

AI Text-to-SpeechSupports PDF, Web, Email, eBooksCustomizable voices and languages
📚 Education
(14K)
free with in-app purchases
11
Decibel - Accurate dB Meter
Decibel - Accurate dB Meter
Decibel - Accurate dB Meter
by 祥祎 刘
Free

Transform your device into a professional sound meter to accurately measure ambient noise levels. Understand how loud your surroundings are, from quiet rooms to loud events, and learn about potential hearing risks.

Accurate sound pressure level measurementMeasures decibels (dB)Provides real-time sound intensity readings
🔧 Utilities
(470)
free
12
Decibel Meter°
Decibel Meter°
Decibel Meter°
dB Checker & Sound Analyzer
Free
🔧 Utilities
(0)
13
TotalReader - ePub, DjVu, MOBI, FB2 Reader
TotalReader - ePub, DjVu, MOBI, FB2 Reader
TotalReader - ePub, DjVu, MOBI, FB2 Reader
by LTD DevelSoftware
Free

This app is a versatile reader supporting a vast array of book, document, comic, and source code formats. It offers advanced customization for reading comfort, cloud integration, and file management tools.

Wide range of supported formatsCloud and network service integrationSpeech synthesizer
📚 Books
(371)
free with in-app purchases
14
Decibel Meter- dB Noise TT
Decibel Meter- dB Noise TT
Decibel Meter- dB Noise TT
Decibel Noise tool
Free

This utility app measures environmental noise levels using your device's microphone. It helps users monitor sound intensity for hearing protection at home, work, or outdoors.

Measures environmental noise levelsMonitors sound intensityAids in hearing protection
🔧 Utilities
(0)
ad-supported
15
Text to Speech - SayTXT Reader
Text to Speech - SayTXT Reader
Text to Speech - SayTXT Reader
Read Aloud, Voice Reader & TTS
Free

This app converts any text into natural-sounding audio, allowing you to listen to articles, PDFs, and more. It offers unlimited, free text-to-speech with customizable voices and playback speeds, acting as a helpful reading assistant for various needs.

Unlimited free text-to-speechReads PDFs, web pages, and pasted textHigh-quality natural voices
📰 Magazines & Newspapers
(257)
free
16
Decibelmeter - dB
Decibelmeter - dB
Decibelmeter - dB
Meet geluid met gemak
Free

Easily measure sound levels with this accurate and intuitive tool. It displays current, maximum, and average decibel values, along with a graphical overview for quick comprehension. This utility is completely free to use.

Simple and easy to useQuick and accurate dB measuringAll-in-one meter
🔧 Utilities
(706)
free with in-app purchases
17
ElevenReader: Read Books Aloud
ElevenReader: Read Books Aloud
ElevenReader: Read Books Aloud
Reader for Books, PDFs & Docs
Free

This app transforms any text into realistic, AI-powered audio narration. Listen to books, PDFs, documents, news, and blogs in over 32 languages with natural-sounding voices. Features include text highlighting, bookmarking, and flexible playback speeds.

AI-powered text-to-speechReads books, PDFs, and documents32+ languages with natural voices
📊 Productivity
(9.3K)
free with in-app purchases
18
PDF Voice Reader - Docs Aloud
PDF Voice Reader - Docs Aloud
PDF Voice Reader - Docs Aloud
Text to speech. Translation
Free

Convert documents like PDFs and Word files into natural-sounding audio. Listen on the go with background playback, customize your listening experience with adjustable speed and voices, and visually track spoken text with color highlighting. Supports cloud sync, translation, and scanning of paper documents.

Background audio playbackAdjustable speech speed and voiceColor highlighting of spoken text
📊 Productivity
(955)
free with in-app purchases
19
Decibel Meter: Sound dB
Decibel Meter: Sound dB
Decibel Meter: Sound dB
Accurate and convenient
Free

Transform your device into a professional decibel meter to measure and track sound levels in real-time. Save measurements, view history charts, and set custom alerts for excessive noise. Useful for documenting sound exposure or identifying noise sources.

Real-time decibel meterSave and export noise measurementsNoise history charts
🔧 Utilities
(283)
free with in-app purchases
20
Wonder Decibel - Voice Meter
Wonder Decibel - Voice Meter
Wonder Decibel - Voice Meter
Noise App & DB Reader
Free

This app transforms your device into a professional acoustic lab, offering precise sound environment analysis. It features noise level classification, multiple frequency weightings, and real-time visualizations. Capture data, create detailed logs, and generate professional reports with embedded media.

Noise Level ClassificationMultiple Frequency Weightings (dBA, dBC, dBZ)Triple Visualization System (Waveform, FFT, Spectrogram)
🔧 Utilities
(4)
free with in-app purchases