# Speaker Polarity — Speaker Pop Wiring tester

> Speaker polarity tester for correct audio wiring phase detection. (iPhone/iPad app by Andrew Smith.)

- Source: https://appshunter.io/ios/app/speaker-polarity/id293263027 (this page in markdown: same URL + `.md`)
- Developer: [Andrew Smith](https://appshunter.io/developer/291822462)
- Category: Music, Utilities
- Price: $4.99
- Rating: 3.60/5 from 18 App Store ratings · 55 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 35 MB
- Languages: American English, French (France), German (Germany), Japanese, Polish, Chinese (Simplified, China), European Spanish, Swedish, Chinese (Traditional, Taiwan)
- Released: 2008-10-14
- Data updated: 2026-08-31
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/speaker-polarity/id293263027/reviews.md

## What is Speaker Polarity?

This app is a speaker polarity tester. Find out if your speakers are wired correctly (in phase or out of phase). Test your surround speakers, stereo speakers, PA speakers, in fact any speaker with wiring terminals on the back.

This speaker polarity tester was designed by the same people who built the Audio Toolbox, and the polarity tester in that unit was known as the most accurate and reliable polarity tester available. Now that technology is available in your iPhone. 

Use this app to test your home speakers, recording studio monitors, home theater systems, car audio systems, or as part of your professional contractor work. Speakers wired backwards are the most common error in sound system setup, cause big problems, and are easily corrected. This app will give you the answers, no matter how difficult the wiring may be to trace. 

Speaker Pop works by watching for a proprietary "pop" sound from the speaker, and doing DSP analysis of the sound to determine if the speaker cone is moving in the correct direction.

For iOS devices with headset jacks, as long as you use a standard 1/8" stereo plug, you can use any normal 1/8" to RCA adapter to get the signal into your system. You can also to record the "pop" test signal to a CD, DVD, or another iPod, and play this signal through your speakers. 

We also support both Bluetooth and AirPlay streaming of the test signal to any device which supports one of these protocols.

If you are working on a home theater system, download our Apple TV app "Surround Generator". This app includes the Speaker Polarity signal, and can route the signal directly to any 5.1 or Atmos 9.6.1 speaker.

Speaker Polarity works with iAudioInterface and iTestMic2.

There is automatic adaptive technology to support any speaker type, Woofer, Midrange, or Tweeter, so you will get reliable readings. 

Once you have the test signal coming out of the speaker, position your phone near the speaker (we suggest you flip it over to point the internal mic directly at the speaker -- the display will flip). In a few seconds you will get the reading on the screen, either a Plus or a Minus. Plus indicates correct speaker polarity, Minus means you need to swap the wires coming into the speaker.

We also have stereo and surround test signals available for download from our web site which are ready for burning to USB stick, CD, or DVD. See our web site or for more information. 

See our other audio apps: AudioTools, our premier audio and acoustics test and analysis app, SPL, the professional grade sound level meter for the iPhone, SPL Graph, for recording SPL over time, RTA, a 1/3 octave real time analyzer, FFT, for detailed acoustic analysis, ETC, the Energy Time Curve app, RT60, for automated octave-band decay time analysis, and Generator, the iPhone signal generator. Watch for more coming soon.

## Key features

- Tests speaker polarity
- Detects in-phase or out-of-phase wiring
- Analyzes proprietary "pop" sound
- Supports various speaker types (woofer, midrange, tweeter)
- Provides Plus (correct) or Minus (reversed) readings
- Works with headset jacks and adapters
- Supports Bluetooth and AirPlay streaming

## Chart rankings

- #80 in Top Paid · Music (US App Store)

## Recent user reviews (10 of 55)

All indexed reviews: https://appshunter.io/ios/app/speaker-polarity/id293263027/reviews.md

### 1/5 — Keeps crashing after update

*2025-12-25*

Please update again it keeps crashing now

### 1/5 — Crashes on opening

*2025-12-23*

App won’t even open. It flashes then crashes. No way to get my money back either, apparently.

### 1/5 — Lame

*2025-05-21*

Pretty much the worst $5 I’ve ever spent. Does not matter if I’m Bluetooth, wired CarPlay, wireless CarPlay. Tells me “low sample rate detected” and then reads no signal when I play the sound. I restarted the iPhone, restarted the uconnect, turned off all other apps and radios on my phone. Don’t bother with this junk if you are trying to figure out polarity on a 2025 wrangler.

### 5/5 — EXCELLENT

*2025-02-12*

Worked for my Jeep , Found out my Jeep Grand Cherokee front 2 door speaker were wired backwards, and all 3 dash tweeters also 🤦🏽‍♂️, After only reversing the the 2 front door speakers the sound system sounds so much better. Once I receive my adapters from Crutchfield I will replace the Tweeters. FOR THOSE OF YOU WHO DONT LIKE TO READ INSTRUCTIONS,HOLDING YOUR CLOSE TO THE SPEAKER EITH TEST TONE PLAYING IF THE PHONE READS A NEGATIVE IT MEANS THAT SPEAKER US OUT OF PHASE/POLARITY. All speakers should read + and not -

### 5/5 — Chuchero testing

*2025-01-22*

Used this app after I found my channels for my chuchero setup and it was accurate on the phase when I switched it on my drivers, mids, and tweeters.

### 5/5 — Must have

*2024-05-05*

This app accurately identified the speakers out of phase. Bluetooth connected, turned on the test tone, held my phone in front of each of the speakers.

### 5/5 — Now my sound is great

*2024-02-18*

My speakers really sounded bad. Somehow flabby. The app showed different polarity, so I changed the polarity of one speaker. Afterwards the sound was as expected. Thank you for this nice and simple app!

### 1/5 — Didn’t work…

*2024-02-10*

Follower instructions, Bluetooth and wired. I tested it on car speakers, my TV and the speaker I bought from the store. Even the speaker that was intentionally crossed wired

### 1/5 — Non functioning

*2023-01-22*

Designed very poorly and doesn’t seem to work via blueooth or irony. Playing the sound manual had no effect. Broken app

### 5/5 — Best money spent on an app

*2022-06-10*

Works great with Bluetooth, (doesn’t work when Apple Car Play is running, but does with Bluetooth) Within 2 minutes I was done. Found out 3 speakers were backwards, literally the most useful app I’ve ever downloaded.

## Frequently asked questions about Speaker Polarity

### What does this app do?

This app functions as a speaker polarity tester. It helps you determine if your speakers are wired correctly, meaning they are in phase or out of phase. By analyzing a proprietary "pop" sound emitted by the speaker, it can detect if the speaker cone is moving in the correct direction, identifying reversed wiring.

### How do I use this app to test my speakers?

Once the test signal is coming from your speaker, position your phone near it, ideally with the internal microphone pointed directly at the speaker. The app will then analyze the sound and display a reading of either "Plus" for correct polarity or "Minus" if the wires need to be swapped.

### What kind of speakers can I test with this app?

This app is designed to work with any speaker that has wiring terminals on the back. It includes automatic adaptive technology to support all speaker types, including woofers, midranges, and tweeters, ensuring reliable readings regardless of the speaker component.

### How can I connect the app's test signal to my speakers?

For iOS devices with headset jacks, you can use a standard 1/8" stereo plug and an appropriate adapter to connect to your system. Alternatively, you can record the test signal to a CD, DVD, or another device and play it through your speakers. The app also supports Bluetooth and AirPlay streaming to compatible devices.

### Is this app free to use?

Yes, this application is available for free. There are no in-app purchases or advertisements mentioned in the provided description, indicating a completely free user experience.

## Version history (last 5 releases)

### 5.2 — 2026-07-09

-Bug fixes and stability improvements

### 5.1 — 2025-12-26

-Fixed a possible crash on launch

### 5.0 — 2025-12-22

-Bug fixes and stability improvements

### 4.9 — 2025-11-24

-Updated for new iOS devices
-Bug fixes and stability improvements

### 4.8 — 2025-05-07

-Added Bluetooth and AirPlay support
-Improved UI display on large-screen devices

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## More apps by Andrew Smith

- [SPL](https://appshunter.io/ios/app/spl/id293573990)
- [RTA](https://appshunter.io/ios/app/rta/id298839433)
- [FFT](https://appshunter.io/ios/app/fft/id298840058)
- [RT60](https://appshunter.io/ios/app/rt60/id298840320)
- [Generator](https://appshunter.io/ios/app/generator/id298840802)

All apps by Andrew Smith: https://appshunter.io/developer/291822462

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*