250+ iOS apps curated and reviewed
Decibel Meter Sound Detector is the household name in decible reader, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (54K) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.6★ (161K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.7★ (17K) | No | No | Aug 2026 |
| 4 |  | Free | 4.5★ (3.1K) | Yes | No | Aug 2026 |
| 5 |  | Free | 5.0★ (1) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.7★ (3) | No | Yes | Aug 2026 |
| 7 |  | Free | 5.0★ (1) | No | No | Jul 2026 |
| 8 |  | Free | 4.6★ (36K) | No | Yes | Aug 2026 |
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.
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.
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.
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.
This app allows you to open, read, scan, and manage various document types like PDFs, Word, Excel, and TXT files. Convert images to PDF and scan paper documents into digital files using your phone's camera.
Access your entire book collection from various sources in one beautiful app. Enjoy a customizable reading experience with synced progress, bookmarks, and highlights across devices. Organize your library with series info, search, and collections.
This app offers a private and ad-free reading experience for fanfiction from Archive of Our Own (AO3). It features offline reading, customizable text and layouts, text-to-speech functionality, and iCloud synchronization across devices.
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.
A native iOS reading application for various content formats including ebooks, manga, and RSS feeds. It offers stable pagination, text-to-speech, and customization options for a comfortable long-session reading experience.
This app transforms your reading into an audio experience with natural voices and synced highlighting. It offers AI-powered explanations for complex passages, making difficult texts easier to understand. Listen to books, documents, and web pages while on the go.
This app pairs with a hardware dongle to enable barcode and RFID scanning on iPhones and iPods. It facilitates data capture by connecting directly to the device via a lightning connector, allowing users to read information through the dongle's trigger buttons or an in-app "Read" button.
Transform scanned book pages into optimized eBooks for your iPhone or iPad. Enjoy reading with features like bookmarks, memos, and brightness adjustments. Access your library anytime, anywhere.
A versatile reader for ebooks, PDFs, and comics. Supports numerous file formats including EPUB, MOBI, and CBZ. Offers a clean reading experience with privacy in mind.
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.
An intuitive e-book reader supporting EPUB, PDF, TXT, RTF, and DOCX. Customize fonts, text size, and themes. The Pro version offers night mode, unlimited books, and easier importing.
This app allows you to view, organize, and share PDF documents. It supports encrypted files, custom folders, and easy transfer from computers. Export your PDFs to various cloud storage and email services.
Access and read your personal digital library of comics, manga, and ebooks from your self-hosted server. Enjoy offline reading, customizable viewing options, and seamless progress syncing across devices.
This app transforms any PDF document into natural-sounding audio, allowing you to listen hands-free. It prioritizes privacy by processing all files offline on your device, with adjustable speech speed and an organized library for easy access.
This reading app offers multiple modes to enhance focus and reduce eye strain. It supports PDF and EPUB files with adjustable speeds and customizable backgrounds for a distraction-free experience.
