213+ iOS apps curated and reviewed
Looking for free frequency scanner apps? 20 of our 213+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | No | No | May 2026 |
| 2 |  | Free | 3.4★ (83) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.6★ (87K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.6★ (527K) | Yes | Yes | Aug 2026 |
| 5 |  | Free | 4.4★ (8) | No | No | Jul 2026 |
| 6 |  | Free | 4.5★ (2.4K) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.7★ (164K) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 4.5★ (101K) | Yes | Yes | Aug 2026 |
This is the native client for an open-source project that scans and identifies audio. It offers premium features through an annual subscription, which automatically renews unless canceled.
Access over 50,000 live audio feeds from police, fire, EMS, air traffic, and more. Stay informed about local and global events with real-time updates, recordings, and live chat features.
Listen to live police, fire, and emergency radio broadcasts from around the world. Receive breaking news alerts and stay informed about local events and major national incidents in real time.
Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.
Scan your current network for suspicious devices and identify hidden cameras or bugs using advanced AI and Wi-Fi scanning. Protect your privacy in hotels, public spaces, and more by ensuring your environment is safe.
Stay informed about live emergency events, breaking news, and public safety alerts. Access thousands of police, fire, and weather radio feeds from around the world. Receive real-time notifications for critical incidents and understand emergency codes.
Access over 100,000 free radio stations, including police, fire, EMS, and music. Listen live, record for later, set alarms, and customize your background. Connect with other listeners and share what you're enjoying.
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.
Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.
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.
Transform your device into a professional emergency radio. Hear and read live dispatch audio with AI transcription. Access thousands of live feeds, interactive maps, and 24-hour archives for real-time situational awareness.
Create pure sine wave audio tones across a wide frequency range. This tool is ideal for tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment. Easily adjust frequencies and volume, with support for AirPlay devices.
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 helps you scan and detect devices around you, including Wi-Fi and Bluetooth connections. It offers AI scanning for visual assurance and IP insights to monitor your network behavior. Results are saved for easy review, with integrated tips for all users.
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 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.
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.
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.
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.