# PhaseChecker vs Kumu.

The clearest difference is update cadence: Kumu. at weekly against PhaseChecker's every 43 months. PhaseChecker's advantage is device support (3 vs 1) and iOS requirement (14.1 vs 26.0). On price, ads and in-app purchases there is nothing between them.

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

PhaseChecker ships an update every 43 months, Kumu. weekly. The most recent releases landed on October 4, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | PhaseChecker | Kumu. |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Weekly** |
| Monetization | Paid | — |
| Size | 1 MB | 40 MB |
| Requires iOS | **14.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Rick Peacock](https://appshunter.io/developer/286052385) | [Alon Malev](https://appshunter.io/developer/6812031769) |

## 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


### Kumu.

[App page](https://appshunter.io/ios/app/kumu/id6812031767)

**In-app purchases:** none


## Frequently asked questions

### Is PhaseChecker free?

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

### Is Kumu. free?

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

### Do PhaseChecker or Kumu. have ads?

Neither PhaseChecker nor Kumu. shows ads.

### Which is updated more often, PhaseChecker or Kumu.?

PhaseChecker ships an update every 43 months, and Kumu. weekly. Most recently, PhaseChecker was updated on October 4, 2026 and Kumu. on October 13, 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.*