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Invoice for Stripe icon
Sheet Music Scanner icon
+1

David Zemsky

For individuals managing chronic health conditions and small business owners or freelancers requiring lightweight, mobile-first administrative tools.

4apps4.6(7.5K)BusinessMusic

Snapshot

Who is David Zemsky?

Providing specialized health tracking and business utility tools for mobile users. Focused on data-driven management for personal health and professional workflows.

Target audience

Individuals managing chronic health conditionsSmall business owners or freelancers requiring lightweightMobile-first administrative tools

Top rival

Zoho

Other rivals

Portfolio

Free 4
4
apps
Business3
Music1

Last updated

Sheet Music Scanner

v6.10

7mo ago

Intense

Publisher DNA

What defines David Zemsky?

Publisher DNA

Primary focus

Medical health tracking and B2B business utilities

Scale

indie

Target audience

Individuals managing chronic health conditions and small business owners or freelancers requiring lightweight, mobile-first administrative tools.

Origin

Founded in 2010 by a group of industry professionals with experience in large-scale systems development.

Signature Patterns

  • Freemium monetization model across both medical and business categories
  • Strong emphasis on data portability and reporting (CSV, Excel, PDF exports)
  • Utility-first design focusing on specific, singular workflows
  • Integration with third-party ecosystems like Stripe for business tools
Intense

Portfolio momentum

Released 17 updates across the portfolio in the last 6 months, indicating high development activity despite a mix of active and legacy titles.

Last release 22d agoActive apps 3Abandoned 3

Company profile

medium confidence
Headquarters
Hong Kong
Founded
2010

Portfolio

What does David Zemsky ship?

Apps

4 apps analysed

No external hardware requirements

  • Functional Utility
  • Inaccurate Scanning Results

Streamlined B2B-centric 'Customer Assignment' workflow

  • High user rating (4.72) indicating product stability

Local customer database increases merchant switching costs

  • Responsive customer service team provides support across all days of the week including Sundays

User Sentiment

How do users feel about their apps?

Unlock the app dragging this portfolio down.

Access the full report for free

Rivals

Who does David Zemsky compete with?

The rivals identified

Contenders(1)

Zoho

known forZoho Invoice - Invoice Maker

1 app4.8Business

A powerful, completely free invoicing alternative that integrates with Stripe for payment processing without adding an extra 1% fee.

Differentiators

  • Massive global ecosystem of business software
  • Ability to offer high-quality tools for free to funnel users into their paid CRM/Accounting suites

Same space(1)

Eventbrite

known forEventbrite Organizer

1 app3.6Business

While focused on ticket scanning, it is used by the same event manager persona for entry control and attendance tracking.

Differentiators

  • Dominant platform in the global events market
  • Massive ecosystem of integrated marketing and payment tools

The Analyst's Read

The bottom line on David Zemsky

Bottom line

The publisher is a specialized indie developer with a proven ability to capture niche markets in health and B2B utilities. Success depends on their ability to maintain high-trust medical apps while resolving technical stability issues in their professional toolset.

Frequently asked questions

How many apps does David Zemsky publish?
David Zemsky has 4 apps tracked by Marlvel, primarily in the Business category.
What kind of apps does David Zemsky make?
David Zemsky's portfolio is concentrated in Business and Music, with an average rating of 4.6/5 across rated apps.
What is David Zemsky's top app?
By review volume across the portfolio, Sheet Music Scanner is David Zemsky's best-known app tracked by Marlvel.

What fed this analysis

Apps analyzed:
6
With full intel:
4
With overview:
6
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 David Zemsky, 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. “David Zemsky intelligence.” Updated 2026-05-08. https://marlvel.ai/publishers/david-zemsky

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Data licensed under CC-BY-NC 4.0