Best Extensions Audio Apps

248+ iOS apps curated and reviewed

4.4 avg rating

18 free apps

Updated September 2026

The best extensions audio apps on iPhone average 4.4★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.

Compare top Extensions Audio Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Tone Generator: Frequency Hz	Free	—	No	Yes	Sep 2026
2	Pitch Changer · Transpose Tool	Free	3.4★ (5)	No	Yes	Sep 2026
3	Audio Booster Higher Volume EQ	Free	5.0★ (1)	No	No	Sep 2026
4	Export Audio	Free	4.8★ (315)	Yes	Yes	Sep 2026
5	WaveFolder - Audio Unit	$4.99	4.6★ (9)	No	No	Aug 2026
6	Audio Unit Player	Free was $0.99	3.9★ (30)	Yes	Yes	Sep 2026
7	Audio Editor - MP3 Cutter App	Free	5.0★ (5)	No	No	Sep 2026
8	Google Translate	Free	4.3★ (84K)	No	No	Sep 2026

Top Picks for Extensions Audio

#1

Tone Generator: Frequency Hz by extensions.ee

Instant Tuning & Ear Training

Editor's Choice

0.0(0 ratings)

FreeIn-App Purchases

Tone Generator: Frequency Hz screenshot 1

Generate precise audio tones for tuning instruments, testing sound equipment, or practicing ear training. This app offers a clean, focused experience with no ads or accounts, working offline for instant reference.

#2

Pitch Changer · Transpose Tool by extensions.ee

Shift Pitch, Edit Tune & Tone

Strong Contender

3.4(5 ratings)

FreeIn-App Purchases

Pitch Changer · Transpose Tool screenshot 1

Easily shift, transpose, and transform audio files without losing quality. This tool offers professional-grade pitch changing for beginners and experts alike, perfect for practice, remixing, or music production. It supports batch processing and works offline.

#3

Audio Booster Higher Volume EQ by AHMET KASIM NAZLI

Speaker Sound Amplifier Louder

Worth Considering

5.0(1 ratings)

Free

Audio Booster Higher Volume EQ screenshot 1

Audio Booster Higher Volume EQ screenshot 2

Audio Booster Higher Volume EQ screenshot 3

Easily increase the volume of any audio file, from podcasts to music, with a simple interface. Achieve studio-grade precision to boost audio up to 30 dB and export high-quality files for sharing.

More Extensions Audio apps to explore

Extract audio from videos

Easily extract audio from QuickTime (.mov) and MP4 videos. Select a video, specify the extraction time range, choose an output format, and save your audio clip. You can also add custom metadata and artwork to your audio files.

Extract audio from MP4 and MOV videosSelect start and end times for extractionChoose from multiple output audio formats

free with in-app purchases

WaveFolder - Audio Unit

WaveFolder - Audio Unit

WaveFolder - Audio Unit

Wave Folding Distortion Effect

This audio effect app adds harmonics to sound by folding waveforms. It's ideal for enhancing synth leads, transforming drum loops, and creating ambient drones. Customize folding thresholds and modulation for unique sound design.

Wave folding distortionHarmonic additionAdjustable folding thresholds

Audio Unit Player

Audio Unit Player

Audio Unit Player

AUv3 host / Export audio

$0.99 | 100% OFF

This music player offers real-time audio processing, including time stretching, pitch shifting, and a 31-band equalizer. It supports AUv3 effects and allows for A-B loop playback, making it ideal for practice, transcription, and performance adjustments.

Real-time time stretch (50-200%)Real-time pitch shift (-12 to +12 semitones)31-band equalizer with presets

Audio Editor - MP3 Cutter App

Audio Editor - MP3 Cutter App

Audio Editor - MP3 Cutter App

Convert, Merge & Trim Audio

This app offers comprehensive audio editing tools, including trimming, merging, format conversion, and ringtone creation. It also features AI-powered speech-to-text transcription, noise reduction, and text-to-speech capabilities for various audio projects.

Audio Cutter & TrimmerAudio MergerMP3 Converter

Google Translate

Google Translate

Google Translate

Text, Photo & Voice Translator

Instantly translate text, voice, and images between hundreds of languages. Features include offline translation, real-time conversation translation, and the ability to save frequently used phrases.

Text translationOffline translationInstant camera translation

free with in-app purchases

1Extn - Extensions & Shortcuts

1Extn - Extensions & Shortcuts

1Extn - Extensions & Shortcuts

Safari QR Code, PiP, Script

Enhance your browsing experience with multiple Safari extensions in one app. Features include picture-in-picture video, webpage translation, source code viewing, QR code generation, and custom script execution for automation.

Picture-in-Picture video playbackWebpage translationView and highlight source code

Volume Booster GOODEV

Volume Booster GOODEV

Volume Booster GOODEV

Audio EQ & Bass Booster

Enhance your audio experience with advanced sound controls and useful tools. Tailor music, videos, and podcasts with bass boost, virtualizer, and a 5-band equalizer. Includes audio analysis and device cleaning features.

Bass BoostVirtualizer5-Band Equalizer

Audio Joiner-Mix&Merge

Audio Joiner-Mix&Merge

Audio Joiner-Mix&Merge

Make custom mixes easily

Easily create custom audio mixes and music medleys with a simple interface. Combine multiple audio files, trim clips, and save your creations to personalized playlists for convenient playback.

Combine multiple audio filesTrim and edit audio clipsCreate custom music medleys

Lexis Audio Editor

Lexis Audio Editor

Lexis Audio Editor

Record & Edit Audio

This app offers comprehensive audio editing tools, including recording, playback, and advanced manipulation like cutting, pasting, and noise reduction. It supports various audio formats and allows for complex mixing and effects.

Audio recording and playbackCut, copy, paste, trim, delete audioNoise reduction and normalization

free with in-app purchases

Musiboot: Get Lossless Music

Musiboot: Get Lossless Music

Musiboot: Get Lossless Music

Volume Booster with HD Sound

Amplify your device's audio output by up to 500% for richer, lossless music and clearer sound. This app lets you exceed standard volume limits for an immersive listening experience, turning your phone into a powerful mini speaker.

Volume amplification up to 500%Enhances audio clarityLossless music playback

High End Car Audio Products

Browse and purchase high-end car audio equipment. Create a wishlist of your ideal sound system and get early access to new products and special offers. Check inventory status for all items.

Browse high-end car audio productsBuild a dream system wishlistEarly access to new products

🛍️ Shopping

Tivoli Audio ART App

Tivoli Audio ART App

Tivoli Audio ART App

by Tivoli Audio, Inc.

Customize your audio experience with Wi-Fi enabled speakers. Stream your personal music collection or favorite services. Easily set up speakers, update firmware, and manage zones for a unique home audio setup.

Wi-Fi speaker customizationPersonal music streamingStreaming service integration

Volume Booster: Bass Boost

Volume Booster: Bass Boost

Volume Booster: Bass Boost

EQ • Speaker Booster • Audio

Enhance your device's audio for music, movies, and games. This app amplifies sound beyond default limits, offering clearer and richer audio with a simple interface. Customize settings for a more immersive listening experience.

Boost volume instantlyClear and powerful sound enhancementSmart audio control with bass and treble tuning

free with in-app purchases

Volume Booster: Bass Boost EQ

Volume Booster: Bass Boost EQ

Volume Booster: Bass Boost EQ

Music Equalizer for Headphones

Enhance your audio experience with a powerful equalizer and bass booster. Adjust volume up to 800%, add surround effects, and customize sound profiles for headphones or speakers. Includes a built-in music player and live microphone amplification.

Volume boosting up to 800%10-band professional equalizerBass and treble boost

Audio Elements: Sound Editor

Audio Elements: Sound Editor

Audio Elements: Sound Editor

Record, Mix & Add Effects

This app offers a professional multi-track audio editor and real-time effect processor. Create, record, mix, and master audio with advanced tools and a variety of effects, all from your mobile device.

Multi-track recording and editingReal-time audio effects and live monitoringAdvanced mixing tools

Dayton Audio DSP Control

Dayton Audio DSP Control

Dayton Audio DSP Control

by Dayton Audio

This application enables control of a digital signal processor via Bluetooth. It allows users to adjust audio settings like crossovers, EQ, and input/output assignments from their mobile device for a customized sound experience.

Bluetooth controlCrossover adjustment10-band parametric EQ per channel

🎬 Entertainment

ByeNoise - Video Audio Editor

ByeNoise - Video Audio Editor

ByeNoise - Video Audio Editor

Noise Reducer, Audio Recorder

This app cleans unwanted background noise from audio and video files using AI. It also offers editing tools like trimming, volume boosting, voice changing, and subtitle embedding. An integrated recorder captures crystal-clear audio with noise reduction.

AI noise reduction for audio/videoTrim, cut, and edit audioVolume booster and equalizer

📷 Photo & Video

free with in-app purchases

FAQ about Extensions Audio

Are there free extensions audio apps for iPhone?

Yes — 18 of the top extensions audio apps we rank are free to download, including Tone Generator: Frequency Hz and Pitch Changer · Transpose Tool.

Does Tone Generator: Frequency Hz have ads or in-app purchases?

Tone Generator: Frequency Hz has no ads and offers in-app purchases, according to its App Store listing as of September 2026.

How many extensions audio apps are on the App Store?

We track 248+ extensions audio apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What is Tone Generator used for?

Tone Generator is used to produce precise audio tones. This is helpful for tuning musical instruments, performing sound checks on audio equipment, and practicing ear training with consistent pitches and intervals.

Can I use Tone Generator offline?

Yes, Tone Generator works offline. You do not need an internet connection to generate tones, making it a reliable tool for any situation.