Best Frequency Detector Radio Apps

247+ iOS apps curated and reviewed

4.4 avg rating

20 free apps

Updated September 2026

Out of 247+ frequency detector radio apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Frequency Detector Radio Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	RF Signal Detector	Free	4.3★ (91)	Yes	Yes	Sep 2026
2	SwR - Global Radio	Free	5.0★ (1)	No	Yes	Sep 2026
3	Frequency Detector Analyzer	Free	4.5★ (17)	No	Yes	Sep 2026
4	Echo: Global SDR Receiver	Free	5.0★ (30)	No	No	Sep 2026
5	Spectral Bands: SDR Client	Free	—	No	No	May 2026
6	Nearby Device Detector: Scan	Free	4.5★ (2.4K)	No	Yes	Sep 2026
7	EMF Detector-Radiation Reader	Free	4.3★ (319)	No	Yes	Sep 2026
8	HamSphere 5.0	Free	3.9★ (7)	No	Yes	Aug 2026

Top Picks for Frequency Detector Radio

#1

RF Signal Detector by NEURASYNC

RF Signal Detector Analyzer

Editor's Choice

4.3(91 ratings)

FreeAdsIn-App Purchases

RF Signal Detector screenshot 1

RF Signal Detector screenshot 2

RF Signal Detector screenshot 3

This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.

#2

SwR - Global Radio by Kruen s.r.o.

Worldwide online SDR receivers

Strong Contender

5.0(1 ratings)

FreeIn-App Purchases

SwR - Global Radio screenshot 1

SwR - Global Radio screenshot 2

SwR - Global Radio screenshot 3

SwR - Global Radio screenshot 4

SwR - Global Radio screenshot 5

SwR - Global Radio screenshot 6

Access a global network of shortwave radio receivers from your phone. Tune into live broadcasts, amateur radio frequencies, and utility stations worldwide with real-time spectrum analysis and intuitive controls.

#3

Frequency Detector Analyzer by NEURASYNC

Spectrum Analyzer EMF Decibel

Worth Considering

4.5(17 ratings)

FreeIn-App Purchases

Frequency Detector Analyzer screenshot 1

Frequency Detector Analyzer screenshot 2

Frequency Detector Analyzer screenshot 3

This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.

More Frequency Detector Radio apps to explore

Echo: Global SDR Receiver

Echo: Global SDR Receiver

Echo: Global SDR Receiver

SDR Tuner, Shortwave & Scanner

Tune into thousands of remote radio servers worldwide from your iPhone or iPad. Explore shortwave broadcasts, aviation communications, and more with a global interactive map and advanced tuning features. Enjoy uninterrupted background audio and a privacy-first experience.

Global interactive map and searchSupport for multiple SDR architecturesScanner mode and OpenMHz archives

Spectral Bands: SDR Client

Spectral Bands: SDR Client

Spectral Bands: SDR Client

RTL-SDR & WebSDR Signal Client

Nearby Device Detector: Scan

Nearby Device Detector: Scan

Nearby Device Detector: Scan

Device Detector and Spy Finder

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.

Detect suspicious devices on Wi-FiAI-powered spy device detectionFetch device details

EMF Detector-Radiation Reader

EMF Detector-Radiation Reader

EMF Detector-Radiation Reader

iemf,frequency detector

Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.

EMF monitoringElectromagnetic field detectionRadiation level measurement

free with in-app purchases

Virtual Ham Radio Transceiver

This virtual ham radio transceiver simulates HF bands from 10-160m, including 6m, 2m, and 70cm. It features USB, LSB, and CW modes, power settings, and built-in audio filters. Additional instruments can be unlocked via in-app purchases.

Virtual HF bands (10-160m)6m, 2m, and 70cm bandsUSB, LSB, and CW modes

🌐 Social Networking

free with in-app purchases

Radio : FM Music Player

Radio : FM Music Player

Radio : FM Music Player

Radio Spotifi Connect

Listen to popular radio stations worldwide in high quality, even with a slow internet connection. This battery-efficient app offers an elegant player with visualizers and lock screen controls, making it easy to find, save, and share your favorite AM and FM stations.

Listen to popular radio stations worldwideHigh quality audio with low internet speedBattery efficient and headset controllable

EMF Radiation Detector Reader

EMF Radiation Detector Reader

EMF Radiation Detector Reader

Detect Magnetic Field Meter

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.

Detect EMF radiationMeasure EMF levelsIdentify risk zones

free with in-app purchases

AI Detector: Find Spy Camera

AI Detector: Find Spy Camera

AI Detector: Find Spy Camera

Secret Tracking Device Finder

Detect hidden devices and connections in your surroundings using Bluetooth, Wi-Fi, and infrared scanning. Gain digital awareness in any space, from hotels to co-working environments, and receive guidance on identifying suspicious electronics.

Bluetooth and Wi-Fi signal scanningInfrared scanning with cameraDevice detection

free with in-app purchases

Intelligent Walkie-talkie

This app simplifies walkie-talkie management with features like facility management, configuration scheme management, and community management. It offers one-click sharing of frequency schemes for convenient intelligent communication.

Walkie-talkie facility managementConfiguration scheme managementCommunity management

Radio App - Simple Radio Tuner

Radio App - Simple Radio Tuner

Radio App - Simple Radio Tuner

FM & AM Radio around the World

Stream local and international FM/AM radio stations from around the world. Access over 100,000 stations covering music, sports, news, and more. Save favorites and listen in the background.

Stream radio from over 200 countriesAccess 10,000+ US radio stationsOver 100,000 worldwide stations

free with in-app purchases

See the Space Station

Easily track the International Space Station and other satellites. Receive timely alarms before passes and get weather condition checks for optimal viewing. Enhance functionality with optional in-app purchases to discover more celestial objects.

ISS tracking and alertsWeather condition checksAlarm notifications

free with in-app purchases

Hidden Camera Detector: Finder

Hidden Camera Detector: Finder

Hidden Camera Detector: Finder

Detect Hidden Device: Spy Cam

This app helps you find hidden cameras and spy devices using your phone's sensors and network scanning. It also offers features to track your Bluetooth devices, mask private conversations, and secure evidence of suspicious findings.

Detect hidden cameras with filtersTrack Bluetooth devicesScan for suspicious devices

free with in-app purchases

Bug Cam Detector - Detect Pro

Bug Cam Detector - Detect Pro

Bug Cam Detector - Detect Pro

Listening Device Secret Finder

Scan public spaces for hidden electronics and unauthorized network connections. Identify unfamiliar devices and use AI visual analysis to enhance your privacy awareness. Review past scans and stay protected wherever you go.

Wi-Fi and Bluetooth device scanningAI visual inspectionScan result history

free with in-app purchases

Live & recorded scanner audio

Access live and recorded public-safety, marine, and railroad radio transmissions from a global network. Browse by activity, decoded paging tones, or save your favorite channels for quick access. Listen in the background with lock screen controls.

Live and recorded audio playbackBrowse by decoded paging tonesBrowse by recent transmissions and activity heatmap

Ham Radio US Band Plan

Ham Radio US Band Plan

Ham Radio US Band Plan

Frequency Guide and Handbook

Listen to Police & Fire radio

Access live police and fire radio broadcasts from across the United States. Enjoy an ad-free experience with a 30-day archive to review past transmissions. Explore over 225 city, county, and state radio systems.

Live police and fire radio streams30-day transmission archiveOver 225 US radio systems

Police Fire Radio Scanner Jail

Police Fire Radio Scanner Jail

Police Fire Radio Scanner Jail

Radio Detector Traffic Alert

Access live police scanner audio and public safety alerts in real-time. Stay informed about emergencies, crimes, and weather warnings with this user-friendly application. Explore feeds from nearby regions and receive instant notifications for critical events.

Live police scanner audio feedsPublic safety alertsNearby region feeds

free with in-app purchases

FAQ about Frequency Detector Radio

What are the best frequency detector radio apps for iPhone?

RF Signal Detector tops our frequency detector radio apps ranking as of September 2026, with a 4.3-star average from 91 App Store ratings, and it's free to download.

Are there free frequency detector radio apps for iPhone?

Yes — 20 of the top frequency detector radio apps we rank are free to download, including RF Signal Detector and SwR - Global Radio.

Does RF Signal Detector have ads or in-app purchases?

RF Signal Detector shows ads and offers in-app purchases, according to its App Store listing as of September 2026.

How many frequency detector radio apps are on the App Store?

We track 247+ frequency detector radio apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What is RF Signal Detector used for?

RF Signal Detector is used for real-time radio frequency signal detection and analysis. It helps monitor signal strength, analyze frequency bands, and identify interference sources to optimize wireless environments.

What frequency bands does RF Signal Detector analyze?

RF Signal Detector analyzes both 2.4 GHz and 5 GHz frequency bands simultaneously. This allows for comprehensive monitoring of your wireless spectrum.