Best High Frequency Highway Apps &amp; Games

Frequency range 1Hz to 25,000HzWave visualizationAdjustable sensitivity

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.

Generate any frequency

Generate sound waves up to 20,000 HzTest human hearing limitsDog whistle functionality

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.

🔧 Utilities

(595)

Tone Generator Speaker Cleaner

Sonic | Water Eject

Clears moisture from device speakersGenerates tones from 0 Hz to 25 kHzControl via Apple Watch

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.

🎵 Music

(21K)

freemium

Tone Generator: Audio Sound Hz

Generate Audio Frequency Waves

Generate sine wave tonesFrequency range 20Hz - 22,000HzInstrument tuning

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.

🎵 Music

(2.6K)

ad-supported

High Frequency Sounds

by Leafgreen

Listen to high frequency soundsTest hearing abilitiesUnderstand sound wave frequencies

Explore a range of high-frequency sounds, generated by rapid sound wave vibrations. This app can be used to test hearing abilities, as sensitivity to high pitches often decreases with age. Discover how well you or others can perceive these distinct noises.

🎬 Entertainment

(33)

Police Scanner Radio & Fire

Live Breaking News & Alerts

Live police and fire scanner broadcastsBreaking news alertsLocal and national event updates

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.

📡 News

(531K)

How many vehicles can you pass

Traffic Jam Fever

Draw new roadsManage vehicle flowPrevent traffic jams

Design new road networks to guide vehicles and prevent traffic jams. Strategically draw paths to ensure smooth passage for all cars.

🎮 Games

(28K)

Japan Highway: Car Racing Game

Traffic Driving: Drift & Race

Open World Free RoamHighway Traffic RacingOnline Multiplayer Racing

Experience high-speed open-world racing on real highways across multiple regions. Master traffic challenges, customize your cars, and compete with friends in thrilling online multiplayer races. Explore vast maps and enjoy a realistic driving simulator experience.

🎮 Games

(68)

Idaho 511

by IBI Group

Real-time highway and traffic informationZoomable map with road conditionsIncident and road closure alerts

Get up-to-the-minute highway and traffic updates for safe route planning. View road conditions, incidents, closures, and weather alerts on a zoomable map. Receive audio notifications for important road events.

🗺️ Navigation

(102)

Water Eject ‒ Speaker Cleaner

Clear Wave & Liquid Remover

Generate sound waves (0Hz-22,000Hz)Decibel meterUltrasonic frequency generator

This app offers audio tools to enhance your device's sound. Generate custom sound waves, measure decibel levels, and even use an ultrasonic frequency generator. It also features customizable themes and an ad-free experience.

🎵 Music

(30K)

Highway Code 2026 & Road Signs

UK Road & Traffic Signs

Full UK Highway CodeAll Road and Traffic SignsFlag rules for later review

This free app provides the complete UK Highway Code and all valid road and traffic signs for 2026. It's designed for all road users, especially those preparing for driving tests, offering features like voice-over reading and easy navigation.

This utility app helps engineers and students calculate and convert RF-specific values like impedance, wavelength, and return loss. It also includes a calculator for comparing RF cables and assemblies, and provides access to product catalogs and branch information.

RF value conversion (impedance, wavelength, return loss)RF assembly calculatordB calculator

Generate pure sine wave tones with precise frequency control up to 25 kHz, including ultrasonic ranges. Stream audio to external devices via Bluetooth or AirPlay. Ideal for audio testing, sound experimentation, and speaker cleaning.

Precise frequency control (0 Hz - 25 kHz)Ultrasonic frequency generationBluetooth and AirPlay streaming

PASSIVE HIGH/LOW FILTER

12 dB/octave low and high cut filtersRetro-tonal sculptingSpecial effects

This audio plugin offers broad tonal sculpting with 12 dB per octave low and high cut filters. It allows for precise frequency subtraction to enhance musicality in mixes, compensating for hardware signal loss with unity gain.

Construct and manage your own highway network. Expand your empire by building roads, collecting tolls, and upgrading your infrastructure to become the ultimate highway tycoon.

Build highwaysManage toll collectionExpand infrastructure

🎮 Games

(6)

Authenticator App - 2FA OTP

Authentication MFA & OTP

2FA OTP managementQR code scanning for account setupManual code entry

Secure your online accounts with this 2FA OTP manager. It offers easy account setup via QR code scanning or manual entry, and enhances security with biometric authentication. All one-time passwords are stored locally on your device for increased protection.

📊 Productivity

(86)

MagicSDR: SDR Radio Receiver

Shortwave, Ham Radio & KiwiSDR

$12.99

Explore the radio frequency spectrum with interactive visualizations like panadapters and waterfalls. Demodulate and listen to various radio signals, and collect frequencies. This flexible application supports numerous SDR hardware protocols and offers access to hundreds of global servers for listening without special equipment.

Panadapter and waterfall visualizationAM, SSB, CW, NFM, WFM demodulationFrequency collection

🔧 Utilities

(10)