Best Project 147 Apps

250+ iOS apps curated and reviewed

4.2 avg rating

20 free apps

Updated October 2026

Out of 250+ project 147 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 Project 147 Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Project 147	Free	—	No	Yes	Jul 2026
2	Reverse Audio & Reverse Voice	Free	—	Yes	Yes	Oct 2026
3	Wider by Infected Mushroom	Free	4.8★ (85)	No	No	Oct 2026
4	Reverse Singing: Play Audio	Free	—	Yes	No	May 2026
5	Detune: Learn Music Production	Free	4.8★ (20)	Yes	Yes	Oct 2026
6	BLE Controller – Arduino ESP32	Free	4.7★ (26)	No	No	Oct 2026
7	PRV DSP	Free	4.7★ (78)	No	No	Oct 2026
8	Reverse Audio - FlipSound	Free	—	No	Yes	Oct 2026

Top Picks for Project 147

#1

Project 147 by ProtoGolf

Editor's Choice

0.0(0 ratings)

FreeIn-App Purchases

Project 147 screenshot 1

Project 147 screenshot 2

Project 147 screenshot 3

Project 147 screenshot 4

Project 147 screenshot 5

#2

Reverse Audio & Reverse Voice by Anh Pham Thi Hoang

Fun Reverse Sing Challenge

Strong Contender

0.0(0 ratings)

FreeAdsIn-App Purchases

Reverse Audio & Reverse Voice screenshot 1

Reverse Audio & Reverse Voice screenshot 2

Reverse Audio & Reverse Voice screenshot 3

Reverse Audio & Reverse Voice screenshot 4

Reverse Audio & Reverse Voice screenshot 5

#3

Wider by Infected Mushroom by Polyverse Music

Stereo Expander

Worth Considering

4.8(85 ratings)

Free

Wider by Infected Mushroom screenshot 1

Wider by Infected Mushroom screenshot 2

This audio plugin expands the stereo width of mono signals to create a more immersive sound. It uses a unique algorithm to ensure phase coherence, preventing muddiness and maintaining signal integrity when summed to mono. Achieve up to 200% stereo width for an exaggerated, wide effect.

More Project 147 apps to explore

Reverse Singing: Play Audio

Reverse Singing: Play Audio

Reverse Singing: Play Audio

Record, Reverse and Play Audio

Detune: Learn Music Production

Detune: Learn Music Production

Detune: Learn Music Production

sounds, chords, synth & theory

Learn to design synthesizer sounds by ear with interactive lessons on a built-in wavetable synth. Progress through modules covering waveforms, filters, effects, and modulation to create your own unique patches. Practice ear-training challenges and daily patches to master sound design.

Interactive synth sound design lessonsBuilt-in wavetable synth engineEar-training challenges

free with in-app purchases

BLE Controller – Arduino ESP32

BLE Controller – Arduino ESP32

BLE Controller – Arduino ESP32

by CircuitMagic Inc.

This app enables wireless control of microcontrollers like Arduino and ESP32 via Bluetooth Low Energy. It features a customizable remote interface, a serial console for real-time data monitoring, and device management tools for makers and hobbyists.

Customizable button interfaceReal-time serial consoleDevice scanning and management

by PRV AUDIO GROUP

This application provides comprehensive control over a 4-channel digital signal processor for audio systems. It allows users to adjust EQ, crossovers, and other audio parameters for optimal sound quality. Designed for both professional installers and audiophiles, it offers a user-friendly interface to unlock the full potential of audio equipment.

Full DSP controlCrossover presetsChannel input limiter

Reverse Audio - FlipSound

Reverse Audio - FlipSound

Reverse Audio - FlipSound

by Valeriu Moiseev

Easily record any sound and play it backward with fun effects. Experiment with audio, create mysterious messages, or just have fun with quick and simple reverse playback, speed control, and pitch adjustments.

One-tap audio recordingReverse playbackSpeed control

DSP Sob seu Controle

Control your Taramps Pro 2.4 BT processor wirelessly via Bluetooth. Adjust sound system details like crossovers, equalizers, and time alignment with an intuitive interface. Manage multiple processors simultaneously for precise audio tuning.

Wireless Bluetooth Low Energy controlReal-time adjustmentsAdaptive vertical/horizontal interface

Video to MP3 - Reverse Audio

Video to MP3 - Reverse Audio

Video to MP3 - Reverse Audio

Video to Audio Converter

Extract high-quality MP3 audio from video files. Create ringtones from your favorite songs and even reverse audio playback. Offers a simple interface for fast video to MP3 conversion.

Extract audio from videoCreate MP3 ringtonesReverse audio playback

📷 Photo & Video

free with in-app purchases

100+ Effects for any player!

Process audio from any app with a customizable chain of effects. Add built-in, AUv3, or custom JSFX plugins. Share your audio chains and scripts easily.

100+ built-in audio effectsJSFX script supportAUv3 plugin integration

by TARAMPS ELECTRONICS LTDA.

Control your Taramps audio processor remotely via Bluetooth. Adjust crossover, equalization, routing, and levels in real-time for precise sound system tuning. Features include a graphic equalizer, delay, and preset saving.

Complete adjustments via appReal-time control via smartphone15-band graphic equalizer

Spy Hearing - Super Hear Boost

Spy Hearing - Super Hear Boost

Spy Hearing - Super Hear Boost

Loud Clear Hear From Distance

Exhaust Note: Car Engine Sound

Exhaust Note: Car Engine Sound

Exhaust Note: Car Engine Sound

V8 & Motorcycle Rev Simulator

This app synthesizes realistic engine exhaust sounds from scratch, based on the physics of firing orders and cylinder layouts. Explore various engine configurations, adjust muffler settings, and experience dynamic features like pops, bangs, and flames. It also includes a detailed 3D engine animation and driving simulation elements.

Real-time synthesized exhaust soundsAdjustable muffler settingsDiverse engine presets

🎬 Entertainment

Engineered For Heavy Metal

Enhance your audio experience with this companion app for premium headphones. It offers seamless pairing, firmware updates, and upcoming features like adjustable EQ, ANC control, and personalized sound profiles. Unlock the full potential of your audio device.

Seamless headphone pairingFirmware updatesAdjustable EQ curve (upcoming)

free with in-app purchases

Engine Sounds: SuperRev

Engine Sounds: SuperRev

Engine Sounds: SuperRev

3D Tuning & Car Simulator

Experience authentic automotive audio with this simulator. Customize engine sound, throttle, RPM, and gear shifting for a realistic driving experience. Features a premium audio library and diverse engine architectures.

Authentic automotive audio simulationReal-time audio synthesis3D tuning simulator

🎬 Entertainment

KRK Audio Tools

KRK Audio Tools

KRK Audio Tools

Tools suite for monitor tuning

This application offers a suite of professional tools designed to optimize your studio monitor setup. It includes features for real-time frequency analysis, level calibration, EQ recommendations, and precise monitor alignment for an enhanced listening experience.

Spectrum RTA for real-time frequency analysisLevel Meter for monitor calibrationEQ Recommendation for room optimization

STETSOM DSPLAYER AMPLIFIER

STETSOM DSPLAYER AMPLIFIER

STETSOM DSPLAYER AMPLIFIER

by STETSOM ELETRÔNICA LTDA

This application provides comprehensive control over professional audio adjustments for car and speaker installations. It supports various input methods including RCA, optical, USB, and Bluetooth, along with FM radio functionality. Fine-tune audio settings like equalization, phase, and delay for optimal sound.

RCA and WIRE audio inputHigh-fidelity optical audio inputUSB and Bluetooth music playback

Microphone Amplifier: Live Mic

Microphone Amplifier: Live Mic

Microphone Amplifier: Live Mic

Sound Booster, Noise Reduction

This app enhances audio in real-time, acting as a powerful sound booster and digital hearing aid. It offers up to 5x volume boost, noise reduction, and bass enhancement for clearer listening in any environment.

Real-time audio amplification up to 5xBackground sound enhancementNoise reduction

SoundSlice - No Ads Audio Trim

SoundSlice - No Ads Audio Trim

SoundSlice - No Ads Audio Trim

Trim audio. No ads.

Easily trim audio files directly on your device. Precisely select audio segments using intuitive controls, zoom in for accuracy, and export in numerous formats. All processing happens offline with no ads or subscriptions.

Precise trimming with drag handlesZoom and timecode input for accuracyPreview cuts before committing

FAQ about Project 147

Are there free project 147 apps for iPhone?

Yes — 20 of the top project 147 apps we rank are free to download, including Project 147 and Reverse Audio & Reverse Voice.

Does Project 147 have ads or in-app purchases?

Project 147 has no ads and offers in-app purchases, according to its App Store listing as of October 2026.

How many project 147 apps are on the App Store?

We track 250+ project 147 apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.