Comparison

PhaseChecker vs EDGE DSP

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PhaseChecker

This utility app tests your sound system to ensure speakers are correctly wired and in-phase. It offers manual and automatic modes, with advanced waveform analysis for precise setup. Proper phasing is crucial for optimal bass response and stereo imaging.

Highlights
  • Speaker phase and polarity testing
  • Manual and automatic test modes
  • Microphone-based analysis
  • Waveform view for advanced users
  • In-app help and guidance
  • Audio output connection
Features
Read full description

The PhaseCheck app will run a test signal through your sound system to ensure your speakers are in-phase and wired with the correct polarity. It can be run either manually or automatically.  Manual mode allows you to run the test signal and flip the phase so you can listen yourself to ensure your sound system is setup correctly.  Automatic mode will run a series of test signals through your sound system and use the microphone on the device to analyse the results. New in version 2.0 is a waveform view mode for advanced use. It allows you to play an asymmetrical waveform (ramp waveform), record the sound from each speaker close up and capture the waveforms to then compare them. Phase is a difficult concept so full help is available in the app to ensure you get the best results. You should check the phase of your sound system whenever the wiring has been changed to ensure everything is the correct polarity. When a sound systems speakers are out of phase the sound quality is affected massively. Bass is reduced significantly and stereo imaging gives the illusion of the sounds pulling outside of the room. To run the check connect your iOS device to your sound system so it can play audio. If possible place the iOS device evenly between the speakers. Phase cancellation will not occur close to the speakers so ensure the device is not too close. Ensure the volume is at a comfortable listening level and if possible ensure there is no background noise to interfere with the scan.

About

EDGE DSP

Features
Read full description

EDGE Car audio was born from a desire to create cutting edge high performance car audio for the enjoyment of the many, not just the few. All EDGE products are built to deliver performance and value surpassed by no other brand. Utilising our experienced team of UK engineers and designers, we define and interpret the market needs of modern car audio consumers. The range is constantly evolving with new product ideas introduced directly from customer feedback and demand. Be part of the revolution and join us at the cutting EDGE of car audio. You’re not here for a long time, you’re here for a good time and if you’re not living on the EDGE then you’re taking up a little too much space.

Screenshots

PhaseChecker3 screens
EDGE DSP3 screens

Verdict

The call

The clearest difference is price: EDGE DSP at Free against PhaseChecker's $0.99. EDGE DSP also leads on update cadence (every 6 weeks vs every 43 months) and iOS requirement (9.0 vs 14.1). On ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

EDGE DSP is free to download; PhaseChecker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PhaseChecker ships an update every 43 months, EDGE DSP every 6 weeks. The most recent releases landed on September 17, 2026 and January 30, 2026 respectively.

Scorecard3 real differences · 7 level
PhaseChecker versus EDGE DSP: the parameters behind the verdict, then further details
ParameterPhaseCheckerEDGE DSP
Price$0.99Free — better
Rating2.0 (3 ratings) — better—
Positive reviews15.8% of reviews—
Number of ratings3 — better—
Update frequencyEvery 43 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.19.0 — better
Further details — not scored
Size1 MB6 MB
Age rating4+4+
DeveloperRick PeacockMidbass Distribution Limited

In-app purchases

None

PhaseChecker

No in-app purchases

None

EDGE DSP

No in-app purchases

Questions

Is PhaseChecker free?
PhaseChecker costs $0.99, with no in-app purchases.
Is EDGE DSP free?
EDGE DSP is free to download, with no in-app purchases.
Do PhaseChecker or EDGE DSP have ads?
Neither PhaseChecker nor EDGE DSP shows ads.
Which is updated more often, PhaseChecker or EDGE DSP?
PhaseChecker ships an update every 43 months, and EDGE DSP every 6 weeks. Most recently, PhaseChecker was updated on September 17, 2026 and EDGE DSP on January 30, 2026.

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