---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "PitchVox - Vocal Pitch Monitor"
developer_entity: "SiU Ahn"
bundle_id: "com.siwooeo.pitchvox"
app_store_id: "6790088487"
category: "Music"
primary_platform: "ios"
primary_monetization: "Free"
offline_capable: false
market_region: "US"
platforms: "iOS & Android"
app_last_updated: "2026-10-03"
report_date: "2026-10-13"
last_verified: "2026-10-13T00:00:00.000Z"
report_version: "1.2.1"
total_reviews: 0
sentiment: "Frustrated"
sentiment_score: 25
confidence: "medium"
confidence_score: 0.45
top_praise_theme: "Previous recording quality remains high for users who enjoy the core audio capture functionality"
top_complaint_theme: "Pitch and voice modulation settings cause female users to sound like males after the latest update"
review_sample_size: 1
total_review_count: 1
analyzed_review_count: 1
data_age_days: 32
momentum_velocity: "maintenance"
intelligence_version: 2
tags: ["music", "free", "frustrated sentiment", "mobile app", "app review", "app analysis", "singers,", "vocal", "students,"]
canonical_url: "https://marlvel.ai/apps/pitchvox-vocal-pitch-monitor"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# PitchVox - Vocal Pitch Monitor Intelligence Report

## TL;DR {#tldr}

- **Category**: Music · Free
- **Signal**: Sentiment Frustrated
- **Recent focus**: Pitch and voice modulation settings cause female users to sound like males after the latest update (top complaint) · Previous recording quality remains high for users who enjoy the core audio capture functionality (top praise)

> **TL;DR:** PitchVox - Vocal Pitch Monitor is a music app by SiU Ahn, with Frustrated user sentiment (25/100), available on iOS & Android.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** PitchVox - Vocal Pitch Monitor is a music app by SiU Ahn.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **User Mood** | Frustrated |
| **Category** | Music |
| **Developer** | SiU Ahn |
| **Pricing** | Free |
| **Platforms** | iOS & Android |
| **Confidence** | Medium (0.45/1.0) |
| **Data Age** | 32d |

## Metadata & Market Performance
- **Publisher:** SiU Ahn
- **Category:** Music
- **Target Audience:** Singers, vocal students, and individuals focused on ear training who require visual feedback for pitch accuracy.
- **Platforms:** iOS & Android
- **Version Reviewed:** 1.2.1
- **Report Date:** 2026-10-13
- **Signal Count:** 1 review analyzed
- **Confidence:** Medium (0.45/1.0)
- **App Store ID (iOS):** 6790088487
- **Bundle ID:** com.siwooeo.pitchvox
- **Google Play ID:** com.siwooeo.pitchvox
- **Data Window:** Analysis based on signals collected up to 2026-10-13

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** PitchVox is a vocal pitch monitoring tool for singers and students that visualizes pitch accuracy in real-time on iOS and Android.
**Why users hire it:** The app removes the need for subjective ear training by providing objective, cent-level visual feedback during practice sessions.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] Real-time pitch graph:** Visualizes vocal pitch as a neon line with color-coded accuracy indicators, expanding ad-inventory per active user.
- **[Differentiator] Practice history and analytics:** Logs session data including average pitch and stability, encouraging repeat sessions to track progress.
  * *User Intent:* Users seek enhanced value through premium features.
- **[Standard] Live note read-out:** Displays current note in solfege or letter names with cent-level deviation from target pitch.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

PitchVox occupies a niche in the Music category as a privacy-focused, free vocal training aid. The lack of monetization beyond basic ad-support limits the resources available for technical maintenance, as evidenced by the recent vocal distortion regression.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Free
- **Tiers:** Fully free, ad-supported application
- **Analysis:** The app is currently free and ad-supported with no in-app purchases or subscription tiers identified.

<!-- section:sentiment -->
## 🔴 User Sentiment (Medium Confidence: 1 of 1 review analyzed) {#user-sentiment}
- **Overall Sentiment:** Frustrated

### Top Praises
- **Previous recording quality remains high for users who enjoy the core audio capture functionality**

### Top Complaints (Impact Areas)

- **Pitch and voice modulation settings cause female users to sound like males after the latest update**

<!-- /section:sentiment -->
<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- On-device audio processing ensures user privacy, serving as a barrier against cloud-dependent competitors.

**Growth Levers:**
- Adding a subscription-based 'Pro' tier for advanced analytics could monetize the existing user base.


<!-- /section:swot -->
<!-- section:whats-new -->
## What's New

- **Latest (v1.2.1, 1 weeks ago):** Improved pitch detection accuracy and resolved audio playback, UI display, and theme styling issues.
<!-- /section:whats-new -->

<!-- section:momentum -->
## App Momentum (Maintenance) {#momentum}

- Ships ~2 releases per year.
- Last major release July 2026.

> **Cadence:** 2 total versions · 0 majors in last 6 months · 10 days since last update · 37 days avg between updates

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

PitchVox - Vocal Pitch Monitor is a music app that is completely free.

<!-- speakable-start -->
> **Bottom Line:** Restoring the pitch-correction algorithm is the only path to stabilizing the user base, as the current vocal distortion regression invalidates the primary utility of PitchVox for female vocalists.
<!-- speakable-end -->

**Best for:** Singers, vocal students, and individuals focused on ear training who require visual feedback for pitch accuracy.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [PIVOT] Rebuild pitch-correction algorithm because the latest update distorts female vocal pitch → restore accuracy and stop churn.
<!-- /section:pm-actions -->

<!-- section:outlook -->
### Outlook: Declining

The vocal training market is consolidating around apps that provide stable, high-fidelity feedback; PitchVox is currently exposed due to technical regressions in its latest release. Without a rapid fix to the pitch-correction algorithm, the app will likely lose its remaining user base to more reliable alternatives.

- 🔴 The recent pitch-correction regression creates an inaccurate user experience that contradicts the app's value proposition, leading to immediate churn.
- 🔴 The lack of a clear monetization path leaves PitchVox vulnerable to better-funded competitors who can afford to maintain higher technical stability.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Total Reviews | 0 |
| Sentiment | Frustrated (25/100) |
| Confidence | Medium |
| Pricing Model | Free |
| Platforms | iOS & Android |
| Key Features | 3 analyzed |
| Outlook | Declining |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **PitchVox - Vocal Pitch Monitor** (this app) | N/A/5 | Frustrated | SiU Ahn |
| [SyncTimer - Ensemble Stopwatch](https://marlvel.ai/apps/synctimer-ensemble-stopwatch) | 5.0/5 | Thrilled | Sebastian Suarez-Solis |
| [ヨルシカ](https://marlvel.ai/apps/com-yorushika-sp) | 4.8/5 | N/A | Fanplus, Inc. |
| [あいみょん](https://marlvel.ai/apps/net-aimyong-sp) | 4.5/5 | N/A | Fanplus, Inc. |
| [イントリズム](https://marlvel.ai/apps/jp-rc-into-rhythm) | 3.5/5 | N/A | RedinC |
| [クリープハイプ](https://marlvel.ai/apps/creephyp-sp-browsingapp) | N/A/5 | N/A | Fanplus, Inc. |

## Company Profile
- **Developer:** SiU Ahn
- **Website:** [https://www.reactiveworks.dev](https://www.reactiveworks.dev)

## Data Sources & Links
- **App Store ID:** 6790088487
- **Google Play ID:** com.siwooeo.pitchvox
- **Dev Site:** [Official Website](https://www.reactiveworks.dev)
- **Sources:** Developer website content, App store metadata, User reviews.

## Related Intel Reports
- [*SyncTimer - Ensemble Stopwatch*](https://marlvel.ai/apps/synctimer-ensemble-stopwatch) (Sebastian Suarez-Solis) · 5.0/5 Rating | Excellent Sentiment
- [*ヨルシカ*](https://marlvel.ai/apps/com-yorushika-sp) (Fanplus, Inc.) · 4.8/5 Rating
- [*あいみょん*](https://marlvel.ai/apps/net-aimyong-sp) (Fanplus, Inc.) · 4.5/5 Rating
- [*イントリズム*](https://marlvel.ai/apps/jp-rc-into-rhythm) (RedinC) · 3.5/5 Rating
- [*クリープハイプ*](https://marlvel.ai/apps/creephyp-sp-browsingapp) (Fanplus, Inc.) · N/A Rating
- [*マカロニえんぴつ*](https://marlvel.ai/apps/com-macaroniempitsu-fc) (Fanplus, Inc.) · 3.1/5 Rating
- [*¼ learn sight read music tutor*](https://marlvel.ai/apps/learn-sight-read-music-tutor) (Alain Kong) · 4.5/5 Rating
- [*100.1 Jack FM*](https://marlvel.ai/apps/100-1-jack-fm) (NRG Media) · 1.0/5 Rating
- [*100.1 WJRZ*](https://marlvel.ai/apps/100-1-wjrz) (Beasley Broadcast Group) · 4.8/5 Rating | Excellent Sentiment
- [*100.3 The Wolf*](https://marlvel.ai/apps/100-3-the-wolf) (SummitMedia, LLC) · 4.1/5 Rating

## Frequently Asked Questions {#faq}

### Is PitchVox free to use?

Yes, PitchVox is currently a fully free, ad-supported application with no in-app purchases or subscription tiers.

### Does PitchVox record my voice?

PitchVox uses your voice only for on-device pitch analysis. Audio is never stored, recorded, or uploaded to any server, ensuring your privacy.

### What is the difference between PitchVox and other vocal trainers?

PitchVox focuses on privacy and simplicity by keeping all audio processing on-device, whereas many competitors rely on cloud-based analysis.

### Is there an alternative to PitchVox for vocal training?

There are many vocal training apps available, but PitchVox is unique in its focus on a simple, privacy-first, on-device pitch graph.

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.45/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 1
- **Data Sources:** user reviews, developer website, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 32 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/pitchvox-vocal-pitch-monitor)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.