235+ iOS apps curated and reviewed
If you already know Decibel X, this is the deeper bench. 235+ noise frequency apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of May 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (156K) | No | Yes | Jul 2026 |
| 2 |  | Free | 4.7★ (19K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | 4.6★ (36K) | Yes | Yes | Jul 2026 |
| 4 |  | Free | 4.5★ (4.8K) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.7★ (2.3K) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.7★ (340) | Yes | No | Jul 2026 |
| 7 |  | $69.99 | 4.7★ (6.9K) | No | No | Jul 2026 |
| 8 |  | Free | 4.5★ (1.8K) | Yes | Yes | Jul 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.
This app generates precise sine wave tones to help remove water and debris from your device's speakers. Easily adjust frequencies by swiping on the screen, and enjoy features like Apple Watch control and background operation. Premium subscribers gain access to advanced waveforms, unlimited sessions, and an ad-free experience.
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.
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.
This app offers science-inspired sound therapy to promote natural healing and restore balance to your mind, body, and brain. It utilizes specific frequencies to aid in sleep, reduce pain, and enhance mental clarity for a holistic wellness journey.
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 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.
Generate precise sound waves with adjustable frequencies and various waveform types. Use it for audio testing, insect repulsion, pet training, or as a prank tool. Features include a decibel meter and stereo sound tests.
This app provides a variety of calming sounds to help adults and children fall asleep faster. It also aids in focus and meditation by blocking distractions and creating a relaxing atmosphere. Enjoy a wide selection of free and premium ambient audio for better rest and concentration.
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.
Generate sound waves across a wide frequency range to test hearing limits. Explore potential uses like deterring pests or competing with friends to see who can hear higher pitches. An optional premium upgrade removes ads and unlocks additional waveform options.
This app generates a variety of sounds to help users sleep, relax, and focus. It masks distracting noises, soothes babies, and can even help with headaches and tinnitus. Enjoy over 50 looped sounds with advanced mixing and alarm features.
Generate sound waves from 1Hz to 40000Hz with various waveforms. Analyze audio frequencies, test hearing, and use for relaxation or speaker cleaning. Offers a sleep timer for peaceful rest.
Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.
This app provides a versatile toolkit for pet training and entertainment. It features a high-frequency dog whistle with adjustable settings, a training clicker with multiple sounds, and a variety of squeaky toy and animal sound effects. It also includes training guides and widgets for easy access.
Enhance sleep and focus with scientifically engineered sound frequencies. This app offers customizable modes for deep slumber and peak concentration, utilizing binaural and isochronic beats. Enjoy an intuitive interface and offline access to boost your well-being and productivity.
Measure sound levels with precision to understand your environment and protect your hearing. Identify loud noises, monitor noise pollution, and find quiet spaces for recording. Features include a decibel dosimeter, background noise measurement, and geo-tagged recordings.
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.
Test your device's audio output and microphone functionality. This app plays specific frequencies and measures decibel levels to help identify speaker issues or microphone obstructions. Upgrade for unlimited testing and an ad-free experience.
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.