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+39

Leonid Gefter

For aspiring real estate agents preparing for state-specific licensing exams and mobile developers seeking portable coding environments.

42apps1.1(504) Multi-theme

Snapshot

Who is Leonid Gefter?

Providing specialized exam preparation for real estate licensing and mobile-first development tools for Python programmers.

Target audience

Aspiring real estate agents preparing for state-specific licensing examsMobile developers seeking portable coding environments

Active nemesis

Andromeda Corp

Other rivals

Portfolio

Free 2
42
apps
Education39
Business1
Developer Tools1
Games1

Last updated

Python Sandbox

v1.0

9mo ago

Active

Publisher DNA

What defines Leonid Gefter?

Publisher DNA

Primary focus

Real estate exam prep and developer productivity tools

Scale

studio

Target audience

Aspiring real estate agents preparing for state-specific licensing exams and mobile developers seeking portable coding environments.

Signature Patterns

  • •High-volume deployment of state-specific educational apps using a consistent 14-module structure
  • •Monetization of educational apps via upfront paid pricing models
  • •Use of color-coded feedback systems to track user progress in study modules
  • •Focus on utility-driven, single-purpose mobile applications
Active

Portfolio momentum

Released 8 updates across 42 apps in the last 6 months, indicating a focus on maintaining existing educational titles while iterating on newer developer-focused tools.

Last release 2d agoActive apps 22Abandoned 20

Portfolio

What does Leonid Gefter ship?

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

Based on 25 of 42 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States25 / 25

Core markets (25/25 apps)

United States

Rivals

Who does Leonid Gefter compete with?

The rivals identified

Nemeses(1)

Andromeda Corp

known forPython Editor App

1 app4.1Developer Tools

Both applications target mobile Python developers with overlapping script editing and execution functionality on iOS devices.

Contenders(5)

Develobile S.p.A.

known forPyto IDE

1 app3.7Developer Tools

Both apps target mobile developers needing portable Python environments, creating direct competition for users seeking coding tools on iOS.

Ketan Appa

known forPython Programming Interpreter

1 app3.1Developer Tools

Both applications target mobile developers with free Python coding environments, creating direct competition for users seeking portable development tools.

Phoenix Lab Technology Co.

known forPython3 Charm - AI Leaning

1 app4.4Developer Tools

Both applications target mobile developers requiring portable Python environments, creating direct competition for users seeking efficient coding workflows on handheld devices.

Rational Matter

known forJuno – Python and Jupyter

1 app4.6Developer Tools

Users report: Both applications target mobile Python developers, with Juno capturing data scientists via Jupyter notebook support while Python Sandbox focuses on general script editing.

婉媚 邵

known forPython Coding

1 app4.5Developer Tools

Both applications target mobile Python developers with free, portable coding environments, creating direct competition for users seeking on-the-go script development.

Same space(20)

ABDESSAMAD EL MOGHIR

known forPython QuickStart

1 app0.0Developer Tools

Provides a structured, progressive learning path for beginners, focusing on curriculum-based skill acquisition.

Alexander Blach

known forTextastic Code Editor

1 app4.7Developer Tools

Focuses on professional file management and remote server connectivity rather than just local Python execution.

Carlos Samuel dos Santos

known forRemoteCode: Mobile AI Coding

1 app0.0Developer Tools

Connects mobile users to local AI coding agents, providing a remote-access workflow for professional developers.

Cloudbit d.o.o.

known forPython Coding Editor & IDE App

1 app4.3Developer Tools

Serves as a direct substitute for mobile Python script execution with an integrated offline interpreter.

Codeliber

known forLearn Python

1 appDeveloper Tools

Combines lessons with a built-in compiler, targeting students who need both theory and practice in one app.

Firas Moussa

known forNode.js Lab

1 app3.8Developer Tools

Provides a specialized Node.js runtime for web developers, serving as a niche alternative for server-side testing on mobile.

FREE AI UTILS COMPANY

known forPython Coding Editor 3 IDE App

1 app4.5Developer Tools

Offers an AI-powered assistant for troubleshooting, directly competing with the sandbox's coding assistance features.

HurryApp

known forHTML Viewer ++

1 app4.5Developer Tools

Serves web developers needing Swift and HTML editing, acting as a specialized alternative for mobile web-focused workflows.

Mimo

known forMimo: Learn Coding/Programming

1 app4.9Developer Tools

Targets the same beginner demographic through gamified learning paths rather than the sandbox's open-ended IDE focus.

Mobibean

known forCodeSnack IDE

1 app4.3Developer Tools

Offers full-stack project management and AI-driven debugging, positioning itself for more advanced mobile development than the sandbox.

Muhammad Mubeen

known forLearn Python Programming [Pro]

1 app4.3Developer Tools

Targets students with offline learning and certification, serving as a paid alternative for focused curriculum completion.

Ocean Float Mobile

known forLearn Python・Coding-AI Compile

1 app4.8Developer Tools

Focuses on structured curriculum and certification for students rather than the sandbox's general-purpose coding environment.

Parewa Labs PVT

known forLearn Python: Programiz

1 app4.7Developer Tools

Uses a gamified, bite-sized lesson structure to attract beginners, contrasting with the sandbox's focus on project-based coding.

salih berkay kokesmer

known forMobile for Claude Code

1 app3.0Developer Tools

Bridges mobile devices to desktop AI agents, offering a remote-first workflow rather than local-only execution.

Shahbaz Khan

known forLearn Python Coding Offline

1 app4.8Developer Tools

Provides an integrated compiler for students, overlapping with the sandbox's core functionality for learners.

Start App

known forVisual Code

1 app4.3Developer Tools

Expands beyond Python to multiple languages, targeting a broader developer base with a desktop-like mobile interface.

sutheesh sukumaran

known forPython 3

1 app4.4Developer Tools

Targets data science students by gating advanced libraries behind premium tiers, unlike the sandbox's general-purpose focus.

Thinkabout

known forCoding game: Python Java Learn

1 app4.7Developer Tools

Targets beginners through gamified challenges, serving as a top-of-funnel educational tool for the same user base.

Tito Idicula

known forLearn Python Coding: Python X

1 app4.7Developer Tools

Provides a certification-focused path for students, though its maintenance-mode status limits its competitiveness against active tools.

文禄 张

known forPython IDE - Code & Run

1 app5.0Developer Tools

Combines local Python execution with professional SSH server management, targeting power users and DevOps engineers.

The Analyst's Read

The bottom line on Leonid Gefter

Bottom line

The publisher effectively leverages a template-based model to dominate niche state-level education markets. Their long-term viability depends on whether the Python Sandbox can scale as a primary revenue driver to offset the low engagement of their legacy exam prep catalog.

Frequently asked questions

How many apps does Leonid Gefter publish?
Leonid Gefter has 42 apps tracked by Marlvel, primarily in the Education category.
What kind of apps does Leonid Gefter make?
Leonid Gefter's portfolio is concentrated in Education and Business, with an average rating of 1.1/5 across rated apps.
What is Leonid Gefter's top app?
By review volume across the portfolio, Python Sandbox is Leonid Gefter's best-known app tracked by Marlvel.
In how many countries are Leonid Gefter's apps available?
Marlvel has tracked Leonid Gefter's apps across 1 country.

What fed this analysis

Apps analyzed:
42
With full intel:
0
With overview:
42
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 Leonid Gefter, 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. “Leonid Gefter intelligence.” Updated 2026-04-30. https://marlvel.ai/publishers/leonid-gefter

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Data licensed under CC-BY-NC 4.0