# PhaseChecker vs Evresys App

The clearest difference is price: Evresys App at Free against PhaseChecker's $0.99. Evresys App also leads on update cadence (every 4 months vs every 43 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

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

PhaseChecker ships an update every 43 months, Evresys App every 4 months. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | PhaseChecker | Evresys App |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (3 ratings)](https://appshunter.io/ios/app/phasechecker/id1160400348/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 15.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 4 months** |
| Monetization | Paid | — |
| Size | 1 MB | 40 MB |
| Requires iOS | 14.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rick Peacock](https://appshunter.io/developer/286052385) | [Evresys B.V.](https://appshunter.io/developer/1678254097) |

## 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


### Evresys App

[App page](https://appshunter.io/ios/app/evresys-app/id1672614654)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is PhaseChecker free?

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

### Is Evresys App free?

Evresys App is free to download, with no in-app purchases.

### Do PhaseChecker or Evresys App have ads?

Neither PhaseChecker nor Evresys App shows ads.

### Which is updated more often, PhaseChecker or Evresys App?

PhaseChecker ships an update every 43 months, and Evresys App every 4 months. Most recently, PhaseChecker was updated on September 17, 2026 and Evresys App on September 20, 2026.

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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.*