515

Known for

METRO X: Metronome & Pro Tuner

1app

Active nemesis

forScore

Other rivals

Publisher DNA

AI intelligence is not yet available for 515. The portfolio data below is up to date.

Top niches they play in

Music Production Readers1 app

Explore the Music Production Readers niche

See every app competing in 515's strongest niche.

Go deeper

Portfolio

Apps

1 app analysed

Sort by

METRO X: Metronome & Pro Tuner

4.2(5)

View Intel →

All-in-one architecture reduces cognitive load for beginners

SYNC ensemble technology creates a unique multi-device coordination mechanism
4.2 rating on only 5 reviews signals unproven market fit

Single-market publisher — every app ships only to United States.

Based on 1 of 1 app with localized market data · last scanned Jun 2026.

Americas (1)

User sentiment

Positive apps

Neutral / mixed

Negative apps

70/100

Avg sentiment score

Top performer

METRO X: Metronome & Pro Tuner

Mixed sentiment

Rivals

The rivals identified

Nemeses(1)

forScore

known forforScore

1 app

So what?

Strategic outlook coming soon.

Frequently asked questions

How many apps does 515 publish?

515 has 1 app tracked by Marlvel, primarily in the Music category.

What kind of apps does 515 make?

515's portfolio is concentrated in Music, with an average rating of 4.2/5 across rated apps.

Last updated

METRO X: Metronome & Pro Tuner

v1.1.9

2mo ago

Core markets (1/1 apps)

United States

forScore is the industry-standard sheet music reader that dominates the professional musician workflow, directly competing with METRO X's goal of being an all-in-one practice hub.

Contenders(4)

Ghostdust

known forSongSheet Pro: Setlist helper

1 app4.7Music

View Intel →

This app focuses on the intersection of chord chart editing and setlist management, directly challenging METRO X's utility for live performers.

Jonathan Salmon

known forSongbookPro - Digital Songbook

1 app4.5Music

View Intel →

Monash University

known forDecibel ScorePlayer

1 app4.0Music

View Intel →

Torsten Ecke

known forLivePrompter 2

1 app4.0Music

View Intel →

Same space(4)

Angisoft

known forrooWatch

1 app3.4Music

View Intel →

rooWatch competes by offering specialized playback control, targeting the hardware-centric workflow of Roon users.

CASIO COMPUTER CO.

known forLyric Creator

1 app2.4Music

View Intel →

Lee Gaskell

known forSetlist Carrot - Setlist.fm

1 app3.9Music

View Intel →

Simon Lang

known for7III Tap: Live MIDI Controller

1 app4.6Music

View Intel →

New entrants(2)

Adam Baker

known forGrip: Control Ableton Live

1 app5.0Music

View Intel →

Grip is a new competitor targeting the electronic music production and live performance market with voice control.

Wei Te Hsu

known forScoreFlow -Sheet Music Reader

1 app0.0Music

View Intel →

What is 515's top app?

Based on user sentiment and following across the portfolio, METRO X: Metronome & Pro Tuner stands out as 515's flagship app tracked by Marlvel.

In how many countries are 515's apps available?

Marlvel has tracked 515's apps across 1 country.

SongbookPro is a major contender in the chord-chart and setlist management space, appealing to the same gigging musician demographic as METRO X.

This app targets the academic and experimental music space, competing for users who require synchronized score playback and rehearsal tools.

LivePrompter 2 competes by offering advanced stage-performance features like MIDI control and master-slave synchronization for live bands.

Lyric Creator overlaps with METRO X by providing specialized tools for lyric management and hardware-integrated performance.

This app serves the organizational side of the music workflow, focusing on setlist generation and music library integration.

7III Tap competes for the musician's screen real estate by providing advanced MIDI control tools for live performance environments.

A new entrant focusing on the core sheet music reading experience with modern Apple Pencil support.

Snapshot

Publisher DNA

Top niches they play in

Portfolio

Apps

Americas (1)

User sentiment

Rivals

The rivals identified

Nemeses(1)

So what?

Frequently asked questions

Core markets (1/1 apps)

Contenders(4)

Same space(4)

New entrants(2)