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Next Batter Up: Walk-Up Music icon
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Joshua Hart

For youth sports coaches, parents, and amateur athletes (baseball, softball, drag racing) seeking professional-grade game-day enhancements.

7apps3.4(462) Multi-theme

Snapshot

Who is Joshua Hart?

Providing amateur coaches and athletes with professional-grade audio utilities and reaction training tools to elevate the local game-day experience.

Target audience

Youth sports coachesParentsAmateur athletes (baseball

Active nemesis

Contractor Pro Software

Other rivals

Portfolio

Free 4
7
apps
Sports3
Entertainment1
Finance1
Graphics & Design1

Last updated

Next Batter Up: Walk-Up Music

v5.4.9

6mo ago

Active

Publisher DNA

What defines Joshua Hart?

Publisher DNA

Primary focus

Sports-focused audio and training utilities

Scale

indie

Target audience

Youth sports coaches, parents, and amateur athletes (baseball, softball, drag racing) seeking professional-grade game-day enhancements.

Signature Patterns

  • •Focus on high-utility sports tools rather than gameplay-centric apps
  • •Monetization via a mix of one-time paid purchases and free utility versions
  • •Integration of specialized hardware/software features like AI voice synthesis and haptic feedback
  • •Targeting the 'Team DJ' or coach persona within the youth sports ecosystem
Active

Portfolio momentum

Maintains an active development cycle with 5 updates across 3 apps in the last 6 months, including a major release within the last 30 days.

Last release 29d agoActive apps 3

Portfolio

What does Joshua Hart ship?

Apps

7 apps analysed

Analysis in progress

Single-purchase model lowers barrier to entry versus subscription rivals

  • AI voice generator feature provides a professional and engaging experience for youth sports team introductions
  • Bluetooth playback instability causes audio delays or complete silence during player walk-up song transitions

Automated Census and FRED data integration minimizes manual entry friction during the initial setup.

  • Plain language explanations of complex financial terms help non-expert users make informed budgeting decisions

Privacy-first local storage removes cloud-dependency friction

  • Physics-driven Metal rendering creates a unique tactile experience

Americas-centric footprint across 3 markets.

Based on 4 of 7 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (2)

  • United States4 / 4
  • Mexico1 / 4

Europe (1)

  • Spain1 / 4

Core markets (4/4 apps)

United States

User Sentiment

How do users feel about their apps?

2

Positive apps

0

Neutral / mixed

0

Negative apps

78/100

Avg sentiment score

Rivals

Who does Joshua Hart compete with?

The rivals identified

Nemeses(1)

Contractor Pro Software

known forWalkout Song Creator DJ

1 app4.4Sports

Both apps target baseball coaches and parents needing stadium-style audio intros, competing directly for the same youth sports market segment.

Contenders(10)

Cedar Dynamics

known forWalkup Pro: Walk Up Songs DJ

1 app4.7Sports

Users report: Both applications target youth baseball coaches and parents needing stadium-style audio intros for players, directly competing for the same game-day utility market.

CraftingBase

known forWalk Up Hero: Player Intros

1 app3.7Sports

Users report: Both apps target youth sports coaches and parents for baseball and softball walk-up music, sharing the same core utility of Apple Music library integration for game-day audio.

Daniel Milner

known forWalk-Up Hype: DJ Walk Up Songs

1 app4.5Sports

Users report: Both applications target youth baseball and softball coaches by providing AI-generated stadium intros and Apple Music integration for player walk-up songs. They compete directly for the same user base of parents and coaches managing game-day audio.

David Herzog

known forDugout DJ - Walk Up Songs

1 app3.4Sports

Users report: Both apps target youth baseball and softball coaches with Apple Music-integrated walk-up song playback, creating direct competition for the same game-day utility.

Jacob Spurlock

known forWalkUp DJ

1 app2.2Sports

Users report: Both apps target youth sports coaches and parents by providing stadium-style audio management for baseball and softball lineups using Apple Music libraries.

James Browning

known forBaseball Lineup Helper

2 apps4.5Sports

Baseball Lineup Helper serves the same youth coaching audience by providing tools to manage batting orders and defensive positions.

JAMES RYAN SULLIVAN

known forWalk Up Song App

1 app3.7Sports

Users report: Both apps target youth baseball coaches and parents with specialized audio tools for player walk-up music, directly competing for the same game-day utility market.

Justin Sams

known forDugout Dude Walkout Intros

1 app4.7Sports

Users report: Both apps target youth sports coaches with AI-generated player intros and Apple Music integration, creating direct competition for the same game-day audio utility market.

Patrick Taylor

known forBaseball Walk-Up Songs

1 appSports

Users report: Both applications target youth sports coaches and parents with AI-generated announcer voiceovers and lineup management tools for game-day audio production.

振训 池

known forDugoutDJ: Walk-Up Songs

1 app0.0Sports

DugoutDJ competes directly for the same youth sports coach and parent demographic by providing specialized audio management tools for baseball and softball game-day at-bats.

Same space(20)

Baseball App

known forBallplayer - Scorekeeping

1 app4.0Sports

Users report: Ballplayer targets the same youth baseball audience by providing a social platform for sharing live game stats and activity feeds.

Blast Motion

known forBlast Baseball

1 app2.9Sports

Users report: Blast Baseball serves the same serious youth sports audience but focuses on biomechanical data capture rather than audio presentation.

Brian Harper

known forLineup Assistant

1 app2.3Sports

Users report: Lineup Assistant targets the same youth coaching audience by automating the creation of compliant game-day rosters.

Chad Payne

known forBallparkDJ Walkout Intros

1 app4.8Sports

BallparkDJ competes for the same youth sports audio market by providing professional voice-over services and a soundboard interface for game-day music.

Dan Machado

known forLeadoff: Walk-Up & Lineups

1 app4.8Sports

Leadoff serves the same niche of youth baseball coaches by combining walk-up music management with lineup and rotation planning.

Daniel McCarthy

known forGameDay Music

1 app5.0Sports

GameDay Music competes directly by providing a dedicated DJ board for sports coaches to trigger walk-up songs and voice intros.

Dominate The Diamond

known forDominate the Diamond

1 app3.1Sports

Dominate the Diamond serves the same youth coaching demographic by providing structured practice plans and training content.

Elie Lamoureux

known forBaseball Legacy Manager 24

1 app2.5Sports

Baseball Legacy Manager 24 serves the same sports-focused audience by providing a deep simulation experience for franchise management.

GameChanger Media

known forGameChanger

1 app4.9Sports

GameChanger is an adjacent utility that dominates the youth sports management space, capturing the same coaches and parents through live scorekeeping and video streaming.

Hammer of the Gods Software

known forSports Audio DJ

1 app4.0Sports

Sports Audio DJ provides a similar stadium-atmosphere utility for the same sports-parent and announcer audience.

Josh Ryan

known forPost9 - Lineup Graphics

1 app5.0Sports

Post9 serves the same youth sports audience by focusing on the visual presentation of starting lineups for social media.

Kevin Hammond

known forLineup Card

1 app4.4Sports

Lineup Card competes for the same youth coaching audience by offering a digital interface for roster management and defensive rotations.

Marco Sowa-Israel

known forBaseball Soundboard

1 app1.9Sports

Baseball Soundboard provides a simplified version of the stadium-audio utility found in Next Batter Up.

Masterplay Sweden AB

known forOnCue Audio

1 app2.8Sports

OnCue Audio competes for the same live-event audio market by providing a professional-grade triggering system for stadium DJs.

Play Ball Apps

known forPlay Ball Lineup - Youth Baseball and Softball Lineup Maker

1 app2.5Sports

Users report: Play Ball Lineup targets the same youth coaching demographic by automating the administrative task of roster and lineup creation.

Postage Saver Software

known forBaseball Fielding Rotation App

1 appSports

Users report: Baseball Fielding Rotation App targets the same youth coaching demographic by automating fair fielding rotations for games.

SO-KUMA Labs

known forBaseball Lineup Maker

1 appSports

Baseball Lineup Maker serves the same youth coaching audience by providing tools for building batting orders and fielding positions.

United States Baseball Federation

known forUSA Baseball

1 app3.8Sports

USA Baseball acts as the governing body for the amateur community, providing the safety and certification infrastructure that coaches and parents must navigate.

Walkup Music

known forWalk-up Songs

1 appSports

Users report: Walk-Up targets the same youth sports programs by integrating music controls with broader team management and communication tools.

Yasuhiro Kunisada

known forBaseball Lineup Cards

1 app4.4Sports

Baseball Lineup Cards serves the same youth coaching audience by providing a digital tool for roster and batting order management.

New entrants(1)

EMJAY747 Enterprises

known forNext Inning: Baseball Lineups

1 app4.8Sports

Users report: Next Inning targets the same youth coaching demographic by providing a grid-based interface for planning fielding rotations and batting orders.

The Analyst's Read

The bottom line on Joshua Hart

Bottom line

Joshua Hart is a disciplined indie developer dominating a specific 'stadium-as-a-service' utility niche. The high weighted rating and consistent update cadence suggest a strong product-market fit among youth sports organizers.

Frequently asked questions

How many apps does Joshua Hart publish?
Joshua Hart has 7 apps tracked by Marlvel, primarily in the Sports category.
What kind of apps does Joshua Hart make?
Joshua Hart's portfolio is concentrated in Sports and Entertainment, with an average rating of 3.4/5 across rated apps.
What is Joshua Hart's top app?
By review volume across the portfolio, Next Batter Up: Walk-Up Music is Joshua Hart's best-known app tracked by Marlvel.
In how many countries are Joshua Hart's apps available?
Marlvel has tracked Joshua Hart's apps across 3 countries.

What fed this analysis

Apps analyzed:
3
With full intel:
1
With overview:
3
Website scraped:
yes
Social presence:
no

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 Joshua Hart, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Joshua Hart intelligence.” Updated 2026-04-24. https://marlvel.ai/publishers/joshua-hart

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Data licensed under CC-BY-NC 4.0