Twelve-Tone Tuner

Twelve-Tone Tuner

By 小军 王

Twelve-Tone Tuner is a free utility app for iOS that provides pitch-tuning interfaces for guitar, violin, bass, ukulele, and erhu.

The App DNA

What makes this app unique?

Musicians hire this app to achieve precise instrument tuning via a visual dial, serving the job of maintaining pitch accuracy for practice and performance.

For Musicians and students playing string instruments who require a versatile, multi-instrument tuning tool.

What does it look like?

Key features

Numbered Musical Notation Dialedge

Visualizes pitch data using a numbered musical notation overlay on the tuner dial.

Multi-Instrument Tuningstandard

Supports tuning interfaces for guitar, violin, bass, ukulele, and erhu.

A4 Frequency Fine-Tuningstandard

Allows manual adjustment of the A4 reference frequency for professional tuning accuracy.

How much does it cost?

freeFree access to all tuning modes and instruments

The app is distributed as a free utility with no visible subscription or IAP gates.

Velocity

Dormant developmentnew contentShow more...

The app has not received an update in over 9 months, indicating a lack of active development. The latest release, which added numbered musical notation to the dial, is the only version in the provided history. Given the significant gap since the last update, the development momentum is classified as dormant.

See all version history

Who built it?

小军 王

2 apps tracked · Music

Metria: AR Tape MeasureMetria: AR Tape Measure
Explore the full publisher profile

User Sentiment

What do users think recently?

How are ratings & reviews evolving?

App Store
5.00 · 1

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for Twelve-Tone Tuner

How's the Music market?

Twelve-Tone Tuner maintains a 5-star rating on the App Store, but the single review count indicates minimal market penetration. The lack of updates for nine months suggests the app is currently in a maintenance-only state.

Read the market outlook

The rivals identified

Unlock the deeper market read.

Access the full report for free

The Analyst's Read

Key takeaways for Twelve-Tone Tuner

Where is it heading?

The music utility market is consolidating around apps with frequent feature updates and social integration. Twelve-Tone Tuner remains in maintenance mode, which will result in a loss of chart relevance as more active competitors capture the student-musician segment.

  • The nine-month update silence suggests the developer has deprioritized the app, which will likely lead to a slow decline in visibility.

The SWOT

Core Strengths
  • Numbered musical notation dial provides a niche visual interface for traditional string instrument students.
  • Multi-instrument support covers five distinct string instrument types in one interface.
Critical Frictions 2 weaknesses inside
Growth Levers
  • Integration of pedagogical content could convert the existing student-focused tool into a broader learning platform.
Market Threats 1 threat identified

Next best moves

1 Invest

Audit user-acquisition channels because the app has only one review → increase install velocity.

The counter-intuitive read

The app's lack of monetization is not a strength…

Read the full take

Since the last report: The analysis shifted from a focus on monetization to a focus on user acquisition and market visibility, reflecting the app's continued stagnation.

Bottom line

Twelve-Tone Tuner provides a functional utility for string players, but its lack of recent feature investment makes it a low-priority tool for users who value consistent performance, so the PM should prioritize acquisition before further development.

Unlock 2 critical frictions, 1 market threat and the analyst’s take.

Access the full report for free

Sources

  1. [1] App Store

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Twelve-Tone Tuner, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

What's new

The analysis shifted from a focus on monetization to a focus on user acquisition and market visibility, reflecting the app's continued stagnation.

shifted

Strategic focus on acquisition

shifted

SWOT analysis update

Cite this report

Marlvel.ai. “Twelve-Tone Tuner Intelligence Report.” Updated Aug 12, 2026. https://marlvel.ai/apps/twelve-tone-tuner

Agent Markdown (.md)See methodologyContact support

Data licensed under CC-BY-NC 4.0