---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "E-Chorus"
developer_entity: "Shoma Kondo"
bundle_id: "com.SoundRave.EChorus"
app_store_id: "6778245467"
category: "Music"
primary_platform: "ios"
primary_monetization: "Paid"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2026-09-09"
report_date: "2026-11-10"
last_verified: "2026-11-10T00:00:00.000Z"
report_version: "1.0.0"
total_reviews: 1
overall_rating: 2
confidence: "low"
confidence_score: 0.3
data_age_days: 5
momentum_velocity: "maintenance"
intelligence_version: 2
tags: ["music", "paid", "mobile app", "app review", "app analysis", "musicians", "audio", "engineers"]
canonical_url: "https://marlvel.ai/apps/e-chorus"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

# E-Chorus Intelligence Report

## TL;DR {#tldr}

- **Category**: Music · Paid
- **Signal**: Rating 2

> **TL;DR:** E-Chorus is a music app by Shoma Kondo, rated 2/5 by 1 users, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** E-Chorus is a music app by Shoma Kondo.
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 2/5 (1 review) |
| **Category** | Music |
| **Developer** | Shoma Kondo |
| **Pricing** | Paid |
| **Platforms** | iOS |
| **Confidence** | Low (0.3/1.0) |
| **Data Age** | 5d |

## Metadata & Market Performance
- **Publisher:** Shoma Kondo
- **Category:** Music
- **Target Audience:** Musicians and audio engineers using iOS or iPadOS for synthesizer, guitar, or vocal production.
- **Platforms:** iOS
- **Version Reviewed:** 1.0.0
- **Report Date:** 2026-11-10
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.3/1.0)
- **App Store ID (iOS):** 6778245467
- **Bundle ID:** com.SoundRave.EChorus
- **Data Window:** Analysis based on signals collected up to 2026-11-10

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** E-Chorus is a four-voice ensemble chorus audio effect for iPhone and iPad, available as a standalone app and AUv3 plugin.
**Why users hire it:** It removes the need for complex desktop-based chorus chains by providing professional-grade modulation directly within mobile production environments like GarageBand.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] Four-Voice Ensemble Engine:** Layers four modulated delay voices with independent rate offsets for a dense, smooth chorus sound.
- **[Standard] AUv3 Audio Effect:** Enables plugin usage within compatible hosts like GarageBand, supporting professional production workflows.
  * *User Intent:* Users seek enhanced value through premium features.
- **[Standard] Try Before Unlocking:** Provides 10 minutes of active processing time to demonstrate value before the $14.99 paywall.
  * *User Intent:* Users seek enhanced value through premium features.
<!-- /section:features -->

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

E-Chorus occupies a specialized niche in the music production category, relying on its AUv3 integration to compete with broader audio utility apps. The $14.99 price point reflects a professional-grade positioning, though it lacks the lower-cost entry tiers common in the mobile audio market.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Paid
- **Tiers:** 10-minute free trial, $14.99 one-time non-consumable purchase
- **Analysis:** The app uses a time-limited trial to gate full functionality, requiring a single $14.99 payment for unlimited access.

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

**Core Strengths:**
- Four-voice ensemble engine creates dense modulation without obvious sweep artifacts

**Growth Levers:**
- Expansion into desktop AUv3 hosts to capture cross-platform production workflows


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

- Ships bug fixes at ~9-week cadence
- No new feature builds recently

> **Cadence:** 1 total versions · 0 majors in last 6 months · 61 days since last update

<!-- /section:momentum -->

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

E-Chorus is a music app that is a paid app.
It holds a 2/5 rating from 1 review.

<!-- speakable-start -->
> **Bottom Line:** E-Chorus provides professional-grade modulation, but the $14.99 entry price limits its funnel in a market increasingly dominated by subscription-based bundles. Pivoting to a tiered pricing structure would unlock the casual segment and improve conversion velocity.
<!-- speakable-end -->

**Best for:** Musicians and audio engineers using iOS or iPadOS for synthesizer, guitar, or vocal production.

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

- [ ] [PIVOT] Ship a tiered pricing model because the $14.99 entry barrier limits casual adoption → increase conversion velocity
<!-- /section:pm-actions -->

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

The mobile audio market is consolidating around subscription-based platforms that offer broad feature sets, leaving specialized tools like E-Chorus in a stable but niche position. E-Chorus must leverage its AUv3 plugin utility to maintain relevance, as the current maintenance-only cadence leaves it vulnerable to more active, feature-rich competitors.

- ⚪ The ~9-week update cadence indicates a maintenance-mode posture rather than active feature expansion, which limits the app's ability to respond to market trends.
- 🔴 The $14.99 one-time purchase model faces increasing pressure from subscription-based audio bundles, which may reduce E-Chorus's appeal to new users over time.
<!-- /section:outlook -->

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

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

| Metric | Value |
| :--- | :--- |
| Overall Rating | 2/5 |
| Total Reviews | 1 |
| Confidence | Low |
| Pricing Model | Paid |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **E-Chorus** (this app) | 2/5 | N/A | Shoma Kondo |
| [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:** Shoma Kondo
- **Website:** [https://plugin.soundrave.org/plugins/e-chorus/](https://plugin.soundrave.org/plugins/e-chorus/)

## Data Sources & Links
- **App Store ID:** 6778245467
- **Dev Site:** [Official Website](https://plugin.soundrave.org/plugins/e-chorus/)
- **Sources:** Developer website content, About us / company information, App store metadata.

## 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 E-Chorus compatible with GarageBand?

Yes, E-Chorus includes an AUv3 audio effect that functions within compatible hosts like GarageBand for iOS and iPadOS.

### How much does E-Chorus cost?

E-Chorus is free to download and includes a 10-minute trial of full features. Unlimited access requires a one-time $14.99 in-app purchase.

### What is the difference between E-Chorus and standard chorus plugins?

E-Chorus uses four independently timed ensemble voices with rate offsets to create a dense sound, avoiding the obvious sweep artifacts found in simpler chorus effects.

### Can I use E-Chorus on my desktop computer?

E-Chorus is designed as a standalone iOS and iPadOS app and an AUv3 effect for mobile hosts; it is not explicitly marketed as a desktop plugin.

## 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:** 0.3/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** developer website, company about page, 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:** 5 days since last refresh

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