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© 2026 MARLVEL.AIv1.165.1

JM Custom Builds — Apps, positioning, trajectory | Marlvel

Marlvel
Publisher intel
JM Custom Builds

JM Custom Builds

For dIY enthusiasts, woodworkers, and craftspeople interested in epoxy resin projects and maker culture.

Known for

Epoxy River Calculator

2apps3.9(29)ProductivityEntertainment

The Builder Bunker screenshot

The Builder Bunker screenshot

Epoxy River Calculator screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

Epoxy River Calculator screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

Epoxy River Calculator screenshot

The Builder Bunker screenshot

Epoxy River Calculator screenshot

Epoxy River Calculator screenshot

The Builder Bunker screenshot

Epoxy River Calculator screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

Snapshot
Publisher DNA
Portfolio
User Sentiment
Rivals
So What?

Snapshot

At a Glance

Last updated 2mo ago

JM Custom Builds operates as a creator-led brand, leveraging a personal digital ecosystem to bridge the gap between educational content and utility-based tooling. By anchoring their mobile presence in a community-subscription model, they effectively convert audience engagement from social channels into a recurring, platform-specific experience. The primary strategic tension lies in balancing a niche, creator-centric community app with standalone utility tools that serve a broader, non-subscriber audience.

Who is JM Custom Builds?

Supporting DIY woodworkers and makers with community-driven content and precision project calculation tools.

Target audience

DIY enthusiastsWoodworkersCraftspeople interested in epoxy resin projects

Rivals analysis in progress

Portfolio

Free 1

2

apps

Entertainment1

Productivity1

Last updated

Epoxy River Calculator

v1.0

2.2y ago

Active

Publisher DNA

Publisher DNA

Primary focus

DIY woodworking and maker community tools

Scale

indie

Target audience

DIY enthusiasts, woodworkers, and craftspeople interested in epoxy resin projects and maker culture.

Signature Patterns

•Direct integration with creator-led DIY content and digital plans
•Mixed monetization strategy combining free community access with paid utility tools
•Focus on niche-specific productivity tools for woodworkers
•Community-centric feature sets including live Q&A and exclusive content

Active

Portfolio momentum

Released 6 updates across 2 apps in the last 6 months, with the most recent major release occurring 23 days ago.

Last release 23d agoActive apps 1Abandoned 1

Portfolio

Apps

2 apps analysed

Sort by

Epoxy River Calculator icon

Epoxy River Calculator

John Malecki's Epoxy River Calculator

3.3(6)

Epoxy River Calculator screenshot 1

Epoxy River Calculator screenshot 2

Epoxy River Calculator screenshot 3

The Builder Bunker icon

The Builder Bunker

4.4(23)

The Builder Bunker screenshot 1

The Builder Bunker screenshot 2

The Builder Bunker screenshot 3

User sentiment

User-sentiment analysis coming soon.

Rivals

Rival analysis coming soon.

So what?

Strategic outlook coming soon.

Frequently asked questions

How many apps does JM Custom Builds publish?

JM Custom Builds has 2 apps tracked by Marlvel, primarily in the Entertainment category.

What kind of apps does JM Custom Builds make?

JM Custom Builds's portfolio is concentrated in Entertainment and Productivity, with an average rating of 3.9/5 across rated apps.

What is JM Custom Builds's top app?

Based on user sentiment and following across the portfolio, Epoxy River Calculator stands out as JM Custom Builds's flagship app tracked by Marlvel.

What fed this analysis

Apps analyzed:: 2
With full intel:: 0
With overview:: 2
Website scraped:: yes
Social presence:: yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by JM Custom Builds, 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. “JM Custom Builds intelligence.” Updated 2026-05-07. https://marlvel.ai/publishers/jm-custom-builds-llc

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Data licensed under CC-BY-NC 4.0

Epoxy River Calculator screenshot

Epoxy River Calculator screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot

The Builder Bunker screenshot