# PhaseChecker vs FOH CALC

The clearest difference is review sentiment: FOH CALC at 100% against PhaseChecker's 16%. PhaseChecker's advantage is iOS requirement (14.1 vs 18.6). On price, ads, in-app purchases and monetization model there is nothing between them.

PhaseChecker costs $0.99 and FOH CALC $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | PhaseChecker | FOH CALC |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[2.0 (3 ratings)](https://appshunter.io/ios/app/phasechecker/id1160400348/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 15.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | — |
| Monetization | Paid | Paid |
| Size | 1 MB | 2 MB |
| Requires iOS | **14.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Rick Peacock](https://appshunter.io/developer/286052385) | [Atul Dahiya](https://appshunter.io/developer/6801656963) |

## What reviewers say

### PhaseChecker

[App page](https://appshunter.io/ios/app/phasechecker/id1160400348)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### FOH CALC

[App page](https://appshunter.io/ios/app/foh-calc/id6801656961)

A rapid and dependable calculator designed for audio professionals. Quickly switch between units like frequency, wavelength, and phase to streamline audio calculations before live events.

**Highlights:** Frequency to wavelength conversion, Phase calculations, Delay time conversion, SPL and voltage calculations, Designed for audio engineers, Fast and reliable

**In-app purchases:** none


## Frequently asked questions

### Is PhaseChecker free?

PhaseChecker costs $0.99, with no in-app purchases.

### Is FOH CALC free?

FOH CALC costs $0.99, with no in-app purchases.

### Do PhaseChecker or FOH CALC have ads?

Neither PhaseChecker nor FOH CALC shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*