Best Audio Function Generator Apps

217+ iOS apps curated and reviewed

4.6 avg rating
18 free apps
Updated July 2026

Audio Function Generator is the household name in audio function generator, but it's far from the only option. We track 217+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Audio Function Generator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Audio Function GeneratorAudio Function GeneratorFree4.7★ (2.1K)NoYesAug 2026
2Tone Generator: Audio Sound HzTone Generator: Audio Sound HzFree4.7★ (2.6K)YesNoAug 2026
3Audio Function Generator PROAudio Function Generator PRO$12.994.8★ (266)NoNoAug 2026
4MultiTone GeneratorMultiTone GeneratorFree4.6★ (354)NoYesJul 2026
5The OscillatorThe OscillatorFree4.3★ (55)NoNoMay 2026
6Tone Gen ProTone Gen ProFree4.5★ (45)NoYesJul 2026
7Tone Generator EXTone Generator EXFree4.8★ (439)YesNoJul 2026
8Frequency Sound Wave GeneratorFrequency Sound Wave GeneratorFree4.8★ (68)YesYesAug 2026

Top Picks for Audio Function Generator

Audio Function Generator#1

Audio Function Generator by Thomas Gruber

Frequency and Signal Generator
Editor's Choice
🔧 Utilities
4.7😐(2.1K ratings)
FreeIn-App Purchases
Audio Function Generator screenshot 1
Audio Function Generator screenshot 2
Audio Function Generator screenshot 3
Audio Function Generator screenshot 4
Audio Function Generator screenshot 5
Audio Function Generator screenshot 6

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.

What We Love

  • 👍 Great app
  • 🎶 Helps with Tinnitus
  • 💯 Best app I've paid for
  • 🔍 Highly recommended

Room to Improve

  • 🐛 Crashes
  • 💰 Deceptive/Money hungry
  • 🔒 Basic features paywalled
Tone Generator: Audio Sound Hz#2

Tone Generator: Audio Sound Hz by TMSOFT

Generate Audio Frequency Waves
Strong Contender
🎵 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

  • 👍 Simple and straightforward
  • 🚀 Works as expected
  • 💡 Useful for testing and tuning
  • 💡 Helps identify hearing range

Room to Improve

  • 🐛 Ads can interfere with usage
  • 🔧 Difficulty fine-tuning frequency
  • 🔧 No amplitude/volume display
Audio Function Generator PRO#3

Audio Function Generator PRO by Thomas Gruber

Frequency and Signal Generator
Worth Considering
🎵 Music
4.8😊(266 ratings)
$12.99
Audio Function Generator PRO screenshot 1
Audio Function Generator PRO screenshot 2
Audio Function Generator PRO screenshot 3
Audio Function Generator PRO screenshot 4
Audio Function Generator PRO screenshot 5
Audio Function Generator PRO screenshot 6

Generate various audio test tones, including sine, square, and sawtooth waves. Explore frequency and volume sweeps, custom presets, and different types of noise. Advanced settings allow for fine-tuning signal parameters and creating complex multi-tone sequences.

What We Love

  • ✨ Superb craftsmanship and work
  • 🚀 Excellent performance on older devices
  • 💡 History feature is a great addition
  • 👍 Versatile and powerful app

Room to Improve

  • 📉 Linear sweep is useless
  • ❓ Missing PWM functionality
  • ❓ Missing Terzrauschen (third-octave noise)

More Audio Function Generator apps to explore

4
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
5
The Oscillator
The Oscillator
The Oscillator
Tone and Noise Generator
Free

Generate tones and noise with adjustable lowpass filters and panning. Choose from sine, triangle, sawtooth, and square waveforms. Precisely tune frequencies in Hz or MIDI notes.

Two oscillatorsOne noise generatorIndividual lowpass filters
🎵 Music
(55)
paid
6
Tone Gen Pro
Tone Gen Pro
Tone Gen Pro
Advanced tone generator
Free

Create various audio signals, including single tones, sweeps, and merged sounds, with extensive parameter control. Ideal for students, musicians, educators, and audio professionals exploring sound.

Generate single type signals (sine, square, noise)Create sweep (chirp) signals (linear/exponential)Generate click signals with adjustable duty cycle
🔧 Utilities
(45)
free with in-app purchases
7
Tone Generator EX
Tone Generator EX
Tone Generator EX
by An-Che Lee
Free

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.

Frequency range 15Hz to 22KHzSine, Square, Sawtooth, Triangle waveformsAuto-off timer
🔧 Utilities
(439)
ad-supported
8
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Use frequency generator tools
Free

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.

Single and multiple frequency generationMusical notes presetsBinaural beats
🔧 Utilities
(68)
free with in-app purchases
9
Multiple Tone Generator
Multiple Tone Generator
Multiple Tone Generator
Sine, Triangle, Squire, Saw
Free

Generate multiple audio signals with adjustable waveforms, frequencies, and volumes for each channel. Offers presets for guitar and bass tuning, with options to expand channel support.

Multiple audio channelsAdjustable waveforms (Sine, Triangle, Squire, Saw)Precise frequency control (20Hz - 20000Hz)
🎵 Music
(58)
free with in-app purchases
10
WavePad Music and Audio Editor
WavePad Music and Audio Editor
WavePad Music and Audio Editor
by NCH Software
Free

Edit and record music, voice, and other audio with a professional suite of tools. Features include cut, copy, paste, and a variety of audio effects like echo and noise reduction. Supports numerous file formats and cloud storage integration.

Record and edit audioCut, copy, paste audioAdd audio effects (echo, amplify)
🎵 Music
(4.4K)
free with in-app purchases
11
Noise Generator: Full Spectrum
Noise Generator: Full Spectrum
Noise Generator: Full Spectrum
Generate Audio Color Noises
Free

Generate a variety of custom color noises, including brown, pink, white, blue, and violet. Fine-tune your audio experience with low and high cut filters. This app offers a simple interface that remembers your settings for quick, personalized sound generation.

Generate brown, pink, white, blue, and violet noiseLow and high cut filters for customizationSimple interface remembers settings
🔧 Utilities
(2K)
free with in-app purchases
12
Audio / Spectrum Analyzer
Audio / Spectrum Analyzer
Audio / Spectrum Analyzer
RTA (FFT / Spectrogram)
Free
$10.99 | 100% OFF

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

Simultaneous waveform and spectrum displayConfigurable display layoutsSelectable FFT size and averaging
🎵 Music
(983)
free with in-app purchases
13
iFunctionGenerator
iFunctionGenerator
iFunctionGenerator
by Black Cat Systems
$2.99

This utility transforms your iOS device into a versatile audio function generator. Create up to 20 independent generators producing various waveforms and noise types, with precise control over frequency, volume, and phase for each channel. Save and recall your settings for quick access.

Multiple waveform generation (sine, triangle, sawtooth, square)Pink and white noise generationUp to 20 independent generators
🔧 Utilities
(8)
paid
14
Pro Microphone: Voice Record
Pro Microphone: Voice Record
Pro Microphone: Voice Record
Acapella and karaoke recording
Free

Transform your device into a professional studio microphone for singing, recording, and practice. Explore various mic types with unique sound effects and enhance your audio with built-in tools like an equalizer and metronome. Perfect for aspiring singers, rehearsals, and karaoke.

Multiple microphone types with unique sound effectsVoice recording and loopingCustomizable equalizer
🎵 Music
(8.4K)
free with in-app purchases
15
AI Music - Generator
AI Music - Generator
AI Music - Generator
Song maker with video creator
Free

Effortlessly create original music and lyrics with AI. Generate professional-quality tracks from text prompts, choose vocal or instrumental, and explore diverse genres. All creations are royalty-free for your projects.

AI music creation from text promptsLyrics generation with custom subjectsVocal or instrumental track options
🎵 Music
(5.3K)
subscription
16
Voice recorder: Audio editor
Voice recorder: Audio editor
Voice recorder: Audio editor
Audio recorder & Audio editor
Free

Record high-quality audio for meetings, notes, lectures, and music with no time limits. This easy-to-use app offers background recording, adjustable sample rates, and editing capabilities. Save files to internal storage or an SD card and share them easily.

High-quality voice recordingRecord meetings, notes, lectures, songsBackground recording
🔧 Utilities
(7.5K)
free with in-app purchases
17
Frequency: Sound Generator
Frequency: Sound Generator
Frequency: Sound Generator
by Lucija Jaksic
Free

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.

Generate sine, square, sawtooth, triangle wavesAdjustable frequency (1Hz-22000Hz)Animated sound wave visualization
🔧 Utilities
(340)
free with in-app purchases
18
Moises: The Musician's App
Moises: The Musician's App
Moises: The Musician's App
Remove vocals or instruments
Free

This app uses AI to separate vocals and instruments from any song, allowing musicians to create custom backing tracks. It also offers features like pitch and speed adjustment, chord detection, and lyric transcription.

AI audio separation of stemsSmart metronomeAI lyric transcription
🎵 Music
(27K)
free with in-app purchases
19
Peech: Text to Speech Reader
Peech: Text to Speech Reader
Peech: Text to Speech Reader
Listen to Books, PDFs and Web
Free

Transform any text into lifelike audiobooks with an AI-powered reading companion. Scan physical books, PDFs, or web articles to listen on the go, with natural-sounding voices and high-speed playback. Supports over 60 languages.

AI voice matching for different genresNatural and lifelike AI voicesLightning-fast OCR for physical books
📊 Productivity
(7.8K)
freemium
20
ElevenLabs: AI Generator
ElevenLabs: AI Generator
ElevenLabs: AI Generator
Generate Speech, Video & Music
Free

Generate human-like AI voices from text for content creators. Quickly create and export high-quality audio for social media, podcasts, and more, supporting over 70 languages. Seamlessly integrate with your creative workflow.

Human-like AI voice generationHigh-quality text-to-speechSupports 70+ languages
📷 Photo & Video
(18K)
free with in-app purchases

FAQ about Audio Function Generator

What are the best audio function generator apps for iPhone?
Audio Function Generator tops our audio function generator apps ranking as of July 2026, with a 4.7-star average from 2.1K App Store ratings, and it's free to download.
Yes — 18 of the top audio function generator apps we rank are free to download, including Audio Function Generator and Tone Generator: Audio Sound Hz.
Audio Function Generator has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 217+ audio function generator apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as a powerful and intuitive tone and signal generator. It allows users to create and play various audio test tones, including sine, rectangular, triangular, and sawtooth waves. You can also generate frequency and volume sweeps, experiment with different types of noise, and save custom presets for quick access.
Key features include the ability to play standard test tones, perform frequency and volume sweeps, generate various noise types, and create/save custom presets. Advanced features, available with a PRO upgrade, extend the frequency range, sweep times, allow for individual channel selection, and enable multi-tone playback.

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