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Best Free Tone Generator Apps

249+ iOS apps curated and reviewed

4.7 avg rating
19 free apps
Updated July 2026

Out of 249+ free tone generator apps on iOS, 19 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 Free Tone Generator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Tone Generator: Audio Sound HzTone Generator: Audio Sound HzFree4.7β˜… (2.6K)YesNoAug 2026
2Frequency: Sound GeneratorFrequency: Sound GeneratorFree4.7β˜… (340)YesNoAug 2026
3Tone Generator EXTone Generator EXFree4.8β˜… (439)YesNoJul 2026
4Audio Function GeneratorAudio Function GeneratorFree4.7β˜… (2.1K)NoYesAug 2026
5Tone generatorTone generatorFree4.0β˜… (152)YesYesAug 2026
6Tone Generate ProTone Generate ProFreeβ€”NoNoMay 2026
7Tone Generator: Frequency AppTone Generator: Frequency AppFree4.8β˜… (137)YesYesAug 2026
8Tone Generator: Frequency HzTone Generator: Frequency HzFreeβ€”NoYesJul 2026

Top Picks for Free Tone Generator

Tone Generator: Audio Sound Hz#1

Tone Generator: Audio Sound Hz by TMSOFT

Generate Audio Frequency Waves
Editor's Choice
🎡 Music
4.7😊(2.6K ratings)
FreeAds
Tone Generator: Audio Sound Hz screenshot 1
Tone Generator: Audio Sound Hz screenshot 2
Tone Generator: Audio Sound Hz screenshot 3
Tone Generator: Audio Sound Hz screenshot 4
Tone Generator: Audio Sound Hz screenshot 5
Tone Generator: Audio Sound Hz screenshot 6

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.

What We Love

  • πŸ‘ Simple and straightforward
  • πŸš€ Works as expected
  • πŸ’‘ Useful for testing and tuning
  • πŸ’‘ Helps identify hearing range

Room to Improve

  • πŸ› Ads can interfere with usage
  • πŸ”§ Difficulty fine-tuning frequency
  • πŸ”§ No amplitude/volume display
Frequency: Sound Generator#2

Frequency: Sound Generator by Lucija Jaksic

Strong Contender
πŸ”§ Utilities
4.7😊(340 ratings)
FreeAds
Frequency: Sound Generator screenshot 1
Frequency: Sound Generator screenshot 2
Frequency: Sound Generator screenshot 3

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.

What We Love

  • πŸ‘ Simple and easy to use interface
  • 🎡 Accurate frequency generation
  • πŸ’° Free application
  • 🧘 Helpful for meditation and stress relief

Room to Improve

  • πŸ“’ Intrusive and inappropriate advertisements
  • πŸ”Š Potential audio damage to speakers/hearing
  • πŸ”’ Privacy concerns and data collection issues
Tone Generator EX#3

Tone Generator EX by An-Che Lee

Worth Considering
πŸ”§ Utilities
4.8😊(439 ratings)
FreeAds
Tone Generator EX screenshot 1
Tone Generator EX screenshot 2
Tone Generator EX screenshot 3

Generate a wide range of audio tones with adjustable frequencies and waveforms. Control playback in the background, from your notification drawer, or lock screen. The app automatically pauses for calls and alarms, and allows you to save custom presets.

What We Love

  • πŸ‘ Clean, intuitive, and elegant interface design
  • 🎡 Precise frequency control with decimal accuracy
  • πŸ’° Completely free with no ads or subscriptions
  • βš™οΈ Customizable A440 tuning standard adjustment

Room to Improve

  • πŸ“‰ Limited frequency range (minimum 15Hz, maximum needs extension)
  • 🚫 No direct frequency input via typing
  • ⏸️ No export functionality for generated tones

More Free Tone Generator apps to explore

4
Audio Function Generator
Audio Function Generator
Audio Function Generator
Frequency and Signal Generator
Free

Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.

Generate sine, square, triangle, and sawtooth tonesFrequency and volume sweep generationNoise generation (white, pink, violet, etc.)
πŸ”§ Utilities
(2.1K)
free with in-app purchases
5
Tone generator
Tone generator
Tone generator
by michael heinz
Free

Create various periodic signals with adjustable frequency and amplitude for testing electronic circuits or tuning instruments. Features include a metronome, a real-time tuner, and options for generating different noise types and tone sequences. It also offers unique features for hearing tests and party games.

Generate periodic signalsAdjustable frequency and amplitudeIntegrated instrument tuner
πŸ”§ Utilities
(152)
free with in-app purchases
6
Tone Generate Pro
Tone Generate Pro
Tone Generate Pro
Audio Tone Generator
Free
πŸ”§ Utilities
(0)
7
Tone Generator: Frequency App
Tone Generator: Frequency App
Tone Generator: Frequency App
Hearing Test, Speaker Cleaner
Free

Generate various audio tones like sine, square, sawtooth, and triangle waves across a wide frequency range. Adjust frequencies by swiping and utilize built-in features for fun hearing tests or to clean your device's speaker.

Sine, square, sawtooth, triangle wave generationAdjustable frequency via swipeBuilt-in hearing test sweep
πŸ”§ Utilities
(137)
free with in-app purchases
8
Tone Generator: Frequency Hz
Tone Generator: Frequency Hz
Tone Generator: Frequency Hz
Instant Tuning & Ear Training
Free
🎡 Music
(0)
9
MultiTone Generator
MultiTone Generator
MultiTone Generator
Frequency and Signal Generator
Free

Generate a wide range of audio test tones, including sine, rectangular, triangular, and sawtooth waves. Explore frequency sweeps, noise generation, and customizable settings. Upgrade for advanced features like creating multiple tone combinations and extended frequency ranges.

Generate sine, rectangular, triangular, and sawtooth wavesPlay frequency sweep test tonesSweep repeat/wobble function
🎡 Music
(354)
free with in-app purchases
10
Telescada NeXGen REMS
Telescada NeXGen REMS
Telescada NeXGen REMS
by Peter Battelino
Free
πŸ”§ Utilities
(0)
11
Wave Generator
Wave Generator
Wave Generator
by Ben Taylor Ltd
Free
πŸ”§ Utilities
(0)
12
Tone Generator: Harmoniq
Tone Generator: Harmoniq
Tone Generator: Harmoniq
Frequency Generator
Free
πŸ”§ Utilities
(0)
13
Golden Tone Generator
Golden Tone Generator
Golden Tone Generator
Golden Ratio Tone Generator
Free

Generate tones using various frequency systems like Golden Ratio, Fibonacci, and Solfeggio. Offers precision playback, custom playlists, and export options. Ideal for musicians, sound designers, and relaxation.

Multiple frequency systems (Golden Ratio, Fibonacci, Solfeggio, 12-TET)Precision playback with adjustable A4 referenceAdvanced playback controls with fade in/out
🎡 Music
(1)
free with in-app purchases
14
Energy Spark Tone Generator
Energy Spark Tone Generator
Energy Spark Tone Generator
by Energy Spark Inc
Free

This utility app generates single or multiple audio tones. It can be used with specific hardware to detect, ingest, and visualize sound frequencies.

Single tone generationMultiple tone generationCompatibility with Energy Necklaceβ„’
πŸ”§ Utilities
(1)
free
15
Frequency Generator: Tone HZ
Frequency Generator: Tone HZ
Frequency Generator: Tone HZ
Binaural beats & pure waveform
Free
🌟 Lifestyle
(0)
16
Tone Generator
Tone Generator
Tone Generator
by Rick Peacock
$0.99
🎡 Music
(0)
17
Tone Generator - Clean Speaker
Tone Generator - Clean Speaker
Tone Generator - Clean Speaker
Frequency Sound Generator
Free

This app allows users to generate various audio tones and test speaker performance. It offers automatic and manual frequency sweeps, different wave modes, and stereo/mono options for comprehensive audio exploration and device verification.

Automatic frequency generationManual frequency controlLinear, Swing, and Burst wave modes
πŸ”§ Utilities
(0)
free with in-app purchases
18
SignalGeneratorApp
SignalGeneratorApp
SignalGeneratorApp
This App generate audio wave
Free
🎡 Music
(0)
19
SignalProof: Tone Generator
SignalProof: Tone Generator
SignalProof: Tone Generator
Test Tones, Noise, Sweeps
Free
πŸ”§ Utilities
(0)
20
Freq'n Awesome Tone Generator
Freq'n Awesome Tone Generator
Freq'n Awesome Tone Generator
Speaker & Audio Test Tones
Free
πŸ”§ Utilities
(0)

FAQ about Free Tone Generator

What are the best free tone generator apps for iPhone?
Tone Generator: Audio Sound Hz tops our free tone generator apps ranking as of July 2026, with a 4.7-star average from 2.6K App Store ratings, and it's free to download.
Tone Generator: Audio Sound Hz shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 249+ free tone generator apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app generates pure sine wave audio tones at frequencies ranging from 20Hz to 22,000Hz. It's designed for various applications like tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment.
Key uses include performing hearing tests to determine the lowest and highest frequencies you can hear, tuning musical instruments like guitars to specific frequencies (e.g., 440 Hz for Low E), conducting science experiments such as finding the resonant frequency of a wine glass, and testing audio systems like subwoofers.