Crew Rest icon
CrewRest+ icon
Jet Fueling icon

Serge Ostrowsky

For pilots, cabin crew, and ground operations personnel requiring precise, offline-capable calculation tools for long-haul flight management.

Known forCrew Rest
3apps4.6(97)Utilities

Snapshot

Who is Serge Ostrowsky?

Providing aviation professionals with specialized tools for flight planning and fuel management. These utilities streamline complex operational calculations for pilots and crew.

Target audience

PilotsCabin crewGround operations personnel requiring precise

Active nemesis

Phoenix Flight Software

Other rivals

Portfolio

Free 1
3
apps
Utilities3

Last updated

Crew Rest

v6.2

6mo ago

Maintenance

Publisher DNA

What defines Serge Ostrowsky?

Publisher DNA

Primary focus

Aviation utility software

Scale

indie

Target audience

Pilots, cabin crew, and ground operations personnel requiring precise, offline-capable calculation tools for long-haul flight management.

Signature Patterns

  • •Focus on niche aviation-specific operational utilities
  • •Paid pricing model across all titles
  • •Emphasis on offline functionality and low device resource usage
  • •Timeline-based visualization for complex scheduling tasks
Maintenance

Portfolio momentum

With only one release in the last six months and one of two apps categorized as abandoned, the publisher operates on a low-frequency maintenance cycle.

Last release 16d agoActive apps 1Abandoned 1

Portfolio

What does Serge Ostrowsky ship?

Apps

3 apps analysed

Crew Rest icon
Crew Rest

Flight crew rest calculator.

4.4(89)

Analysis in progress

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

Based on 2 of 3 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (1)

  • United States2 / 2

Core markets (2/2 apps)

United States

Rivals

Who does Serge Ostrowsky compete with?

The rivals identified

Nemeses(1)

Phoenix Flight Software

known forMil Fuel Check

1 app4.5Utilities

Both apps target aviation professionals for fuel management, creating direct competition for the same user base despite different specific aircraft focuses.

Contenders(10)

Andrew McConn

known forAirline Fuel Helper

1 app5.0Utilities

Both apps target aviation professionals for fuel and payload calculations, creating direct competition for the same technical user base.

Christian van der Meij

known forAirro Aviation Fuel Calculator

1 app0.0Utilities

Both applications target aviation professionals for fuel uplift and payload calculations, creating direct competition for the same user base.

FLYT TOOLS

known forFuel Check Manager

1 app3.6Utilities

Both apps target aviation professionals with identical 1.99 dollar pricing and overlapping core utility in fuel calculation.

Hien Van

known forFuel Calc - HCM RMC

1 app0.0Utilities

Both applications target aviation personnel by providing specialized tools for fuel uplift calculations and unit conversions.

Jason Pirozzolo

known forAircraft Fuel Coach for Pilots

1 app5.0Utilities

Both applications target aviation professionals and hobbyists, competing for cockpit utility space by providing specialized fuel management tools.

Michael Gehringer

known forFuel Uplift

1 app2.5Utilities

Both apps target aviation professionals requiring fuel calculation tools, with direct overlap in unit conversion and fuel uplift computation functionality.

Michael Parsons

known forBD700 Fuel Tanker

1 app0.0Utilities

Both apps target flight crews and operators, focusing on aviation fuel management and operational decision-making.

Richard Montoya

known forFuel Density Calculation

1 app5.0Utilities

Both applications target aviation professionals requiring fuel calculation utilities, creating direct competition for cockpit-based flight planning tasks.

Stormwind Solutions

known forMission Fuel: Fuel Check

1 app5.0Utilities

Both apps target aviation professionals for fuel-related calculations, creating direct competition for cockpit utility space.

Thomas Oswald

known forAviation Fuel Calculator

1 app0.0Utilities

Both apps target pilots and ground crew with specialized fuel uplift and payload calculation tools, creating direct competition for the same professional aviation utility segment.

Same space(7)

Alex Weeser

known forSimple Fuel Calculator (USA)

1 app5.0Utilities

This tool focuses on U.S. automotive cost tracking, lacking the specialized aviation variables like APU consumption found in the source app.

George Richardson

known forFuel Calculator

1 app3.0Utilities

This utility provides basic automotive trip cost estimation, lacking the professional aviation constraints necessary for aircraft refueling.

International Air Transport Association

known forFuel Portal App

1 app0.0Utilities

This system provides global fuel industry alerts, serving a different operational segment than the source app's individual pilot utility.

Jakub Julis

known forThe Fuel Calculator

1 app0.0Utilities

This app targets general vehicle and electric vehicle cost estimation, lacking the aviation-specific constraints required for aircraft operations.

Jorge Gonzalez Galvan

known forAviation Tools

1 app0.0Utilities

This tool bundles multiple aviation utilities, directly competing with the source app's functional scope for pilots.

Occam Tech S.R.L.

known forAviation Converter

1 app1.0Utilities

This app provides aviation-specific unit conversion, overlapping with the source app's utility but lacking payload management features.

SHPAVDA, TOO

known forFuel Calculator App

1 app4.7Utilities

This app targets general automotive fuel tracking, contrasting with the aviation-specific payload calculations required by the source app.

The Analyst's Read

The bottom line on Serge Ostrowsky

Bottom line

This publisher serves a narrow, high-intent professional audience with functional, no-frills utilities. Their long-term viability depends on maintaining these tools to match evolving aviation operational standards.

Frequently asked questions

How many apps does Serge Ostrowsky publish?
Serge Ostrowsky has 3 apps tracked by Marlvel, primarily in the Utilities category.
What kind of apps does Serge Ostrowsky make?
Serge Ostrowsky's portfolio is concentrated in Utilities, with an average rating of 4.6/5 across rated apps.
What is Serge Ostrowsky's top app?
By review volume across the portfolio, Crew Rest is Serge Ostrowsky's best-known app tracked by Marlvel.
In how many countries are Serge Ostrowsky's apps available?
Marlvel has tracked Serge Ostrowsky's apps across 1 country.

What fed this analysis

Apps analyzed:
2
With full intel:
0
With overview:
2
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 Serge Ostrowsky, 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. “Serge Ostrowsky intelligence.” Updated 2026-05-07. https://marlvel.ai/publishers/serge-ostrowsky

See methodologyContact support

Data licensed under CC-BY-NC 4.0