# PhaseChecker — user reviews

> 19 indexed App Store user reviews of PhaseChecker by Rick Peacock, rated 2.00/5 from 3 ratings.

- Source: https://appshunter.io/ios/app/phasechecker/id1160400348/reviews
- App overview in markdown: https://appshunter.io/ios/app/phasechecker/id1160400348.md
- Rating breakdown: 5★ 0 · 4★ 1 · 3★ 0 · 2★ 0 · 1★ 2

## Newest reviews (5 of 19)

### 1/5 — Doesn’t work

*2018-04-06*

Says it doesn’t know if out of phase. Useless 👎🏿👎🏿👎🏿

### 1/5 — Does not work with newer cars.

*2018-03-18*

My car is usb or bluetooth only and this app will not work. Car needs an aux jack. And a phone with headphone 3.5mm output

### 1/5 — Misleading

*2018-01-06*

This app requires a physical connection between your phone and your audio system and then the ability to place the phone between the speakers at a suitable distance.  Any kind of decent app at this time would use a Wifi connection.

### 1/5 — Simply doesn't work

*2017-04-15*

It wasn't able to detect the phase of either channel, right or wrong. Would just give the message "unable to determine phase". I even wired my speakers incorrectly to test the app, still couldn't determine the phase.

### 1/5 — Doesn't output audio through Bluetooth

*2017-01-17*

Wish the description had said this. Would have saved me a buck. Plays tones out through phone speakers. That doesnt do any good.

## Most critical reviews (10 lowest-rated)

### 1/5 — ใช้ไม่ได้จริง

*2025-11-02, version 2.1*

ใช้ไม่ได้ วัดไม่ได้ผลอะไร ไม่สามารถใช้งานได้จริง

### 1/5 — Doesn’t work for me

*2023-11-07*

iPhone 14 connected via Bluetooth, both music player and amazon music and also key clicks coming through system. Not this app though, it keeps coming out of the phone speaker so can’t check phases. Wouldn’t mind so much but paid for an app that doesn’t work.

### 1/5 — Useless

*2023-09-25*

It just plays tones through your phone speakers. 100% useless. What a waste of money.

### 1/5 — Doesn’t work

*2023-01-22*

As other reviewers have pointed out, this doesn’t emit a signal over Bluetooth or airplay. Worthless app

### 1/5 — Does not work at all

*2022-06-22*

Tried to reverse the phase on purpose and still said in phase!

### 1/5 — Sad face

*2020-06-07*

Sadly just doesn’t work. I even changed the wires on one of the speakers round, still told me it was phased correctly.

### 1/5 — Not worth any stars unfortunately

*2019-06-24*

Only outputs sound from the headphone jack, and my iphoneX doesn’t have one of those, nor does my car have an aux input connection.  How hard would it have been to output sound over the Bluetooth connection???

### 1/5 — ไม่ผ่าน

*2019-04-08, version 1.0*

ใช้ยาก ลดเสียงรอบข้างไม่ได้ ไม่เหมือน polarity speaker ของแอนดรอย ปรับได้ง่ายกว่า แถมยังโหลดฟรีอีกด้วย

### 1/5 — Really not a good way to spend 99p!

*2018-09-09*

Very poor

### 1/5 — Not work

*2018-06-12, version 1.0*

I ‘m connect by Bluetooth to alpine cde-148ebt do not  sound anything for check phase can’t scan auto function not work 
Thank you

## Most praised reviews (4 highest-rated)

### 5/5 — Excellent

*2025-04-09*

Excellent. Thank you.

### 5/5 — Microphone mastery

*2022-09-06*

I have been able to improve my hifi listening in this unconventional room set up thanks to this app, a bit of fiddling, and my phone’s microphone.  Remember, people, that the “out-of-phase” read should end up quieter than the “in-phase” read to get the benefit of proper set up.  The developer explains this on (his) website.

Witness that equivalent old-school media is many times the price.

### 4/5 — Use mirroring to make it work

*2024-01-20*

To everyone that can’t figure this out, turn on screen mirror to your Apple TV.

### 2/5 — Poor instructions

*2019-12-05*

Poor user interphase, and ambiguous instructions. 

It’s not clear whether the standard tone is meant to be softer than the phase tone or vice versa. Instructions need to be much more clear on what to expect. 

At the moment this app is borderline useless until the instructions and UI are clearer with the user.

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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 2026-09-06.*