0+ iOS apps curated and reviewed
If you already know Decibel X, this is the deeper bench. 0+ frequency measurement tool apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (161K) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.3★ (907) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.5★ (14K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (340) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.2★ (2.6K) | Yes | Yes | Aug 2026 |
| 6 |  | $69.99 | 4.7★ (6.9K) | No | No | Aug 2026 |
| 7 |  | Free | 4.4★ (2.1K) | No | Yes | Aug 2026 |
| 8 |  | $1.99 | 4.5★ (241) | No | No | Aug 2026 |
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.
Transform your phone into a professional-grade decibel meter for real-time noise detection. Features advanced algorithms, noise visualization, and recording capabilities for comprehensive sound analysis.
Transform your device into a versatile toolkit with a comprehensive suite of measuring instruments. This app offers a metronome, stopwatch, timer, ruler, level, and various sensors to assist with a wide range of tasks.
Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.
This app offers precise measurements using augmented reality and on-screen tools. It caters to both professional and everyday needs with features like a flexible measuring tape, bubble level, and photo ruler. Save and manage your measurements within projects for easy access.
This application transforms your device into a professional sound level meter, offering precise dBA and dBC measurements. It features advanced analysis tools like frequency spectrum analysis and data export, making it ideal for audio professionals and anyone interested in sound environments.
Calculate distances between points and areas of polygons on a map. Supports metric and imperial units, GPS location, and freehand drawing. Altitude calculation is also available, with or without data connectivity.
Measure sound levels with your phone. This tool offers accurate decibel readings for private use, featuring a user-friendly design and detailed charts for understanding sound impact. It's a convenient way to gauge audio volumes around you.
Generate sound frequencies from 1Hz to 25,000Hz with a simple interface. Features include wave visualization, adjustable sensitivity, and multiple waveform options. Use it for hearing tests, pet training, or as a prank tool.
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.
Transform your device into a versatile measuring toolkit. It offers a comprehensive suite of 13+ tools including a barometer, altimeter, compass, metronome, stopwatch, timer, and various levels for diverse applications.
This app uses AR and device sensors to provide digital measurement tools. Measure distances, heights, and areas with a virtual ruler and level. Save and share your measurements easily.
Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.
Transform your device into a precise bubble level, angle gauge, and measuring tool. Ideal for home improvement, construction, and DIY projects, it offers real-time tilt readings and surface alignment for professional accuracy.
This tool transforms your device into a precise angle measurement instrument. It's ideal for DIY projects, construction, and renovations, offering real-time readings in various formats. Get professional-grade accuracy for all your angled surface needs.
Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.
Analyze audio frequencies in real-time using your device's microphone. Visualize audio levels, noise, and frequency ranges with a spectrum analyzer and oscilloscope. Export data for further analysis.
This app transforms your iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.
This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.
Transform your phone into a versatile measuring toolkit. Accurately measure length, height, area, and create floor plans using augmented reality. Includes a screen ruler and level tool for various tasks.