FishWeather: Marine Forecasts icon
HeatAlert: Heat Stress Index icon
iKitesurf: Weather & Waves icon
+7

WeatherFlow

For marine professionals and high-stakes outdoor enthusiasts, including sailors, kitesurfers, and anglers, who require precise wind data for safety and performance.

10apps4.0(18.9K)Weather

Snapshot

Who is WeatherFlow?

Providing hyper-local, hardware-backed weather intelligence for marine and outdoor enthusiasts through a proprietary global sensor network.

Target audience

Marine professionalsHigh-stakes outdoor enthusiastsIncluding sailors

Active nemesis

Windy Weather World

Other rivals

Portfolio

Free 10
10
apps
Weather10

Last updated

SailFlow: Sailing Forecasts

v6.38

9mo ago

Intense

Publisher DNA

What defines WeatherFlow?

Publisher DNA

Primary focus

Hyper-local marine and wind weather intelligence

Scale

indie

Target audience

Marine professionals and high-stakes outdoor enthusiasts, including sailors, kitesurfers, and anglers, who require precise wind data for safety and performance.

Signature Patterns

  • •Integration of proprietary Tempest Weather System hardware data across all flagship titles
  • •Niche-specific branding targeting distinct maritime sports like sailing, kitesurfing, and windsurfing
  • •Freemium monetization model with tiered 'Plus', 'Pro', and 'Gold' subscription levels
  • •Heavy reliance on the proprietary Tempest Rapid Refresh Model (TRRM) for predictive data
  • •Consistent high-frequency update cycle across the entire active portfolio
Intense

Portfolio momentum

The publisher maintains an exceptionally high development cadence with 33 updates across 9 active apps in the last six months and a recent release within 14 days.

Last release 14d agoActive apps 9Abandoned 1

Portfolio

What does WeatherFlow ship?

Apps

10 apps analysed

FishWeather: Marine Forecasts icon
FishWeather: Marine Forecasts

Marine forecasts, tides, waves, wind conditions, along with alerts & radar

4.7(4.8K)

AI-enhanced Nearcast model enables hyper-local accuracy

  • Highly accurate marine weather forecasting provides essential safety data for offshore fishing and boating
  • Persistent advertisements remain visible even after purchasing the most expensive annual subscription tier
HeatAlert: Heat Stress Index icon
HeatAlert: Heat Stress Index

Stay Informed: Your personal heat stress monitor w/ WBGT conditions and forecast

3.6(13)
iKitesurf: Weather & Waves icon
iKitesurf: Weather & Waves

iKitesurf is your most trusted Kiteboarding & Kitesurfing weather source.

4.7(1.8K)
iWindsurf: Weather and Waves icon
iWindsurf: Weather and Waves

iWindsurf is your most trusted Windsurfing weather source with Waves & Tides.

4.8(1.5K)
SailFlow: Sailing Forecasts icon
SailFlow: Sailing Forecasts

Wind, tides, waves for sailing and boating with maps, alerts, and forecasts

4.7(5.3K)

Distributed across 10 markets, strongest in Americas.

Based on 4 of 10 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (3)

  • United States4 / 4
  • Brazil1 / 4
  • Mexico1 / 4

Europe (5)

  • France1 / 4
  • Germany1 / 4
  • Italy1 / 4
  • Portugal1 / 4
  • Spain1 / 4

Asia-Pacific (2)

  • Japan1 / 4
  • South Korea1 / 4

Core markets (4/4 apps)

United States

User Sentiment

How do users feel about their apps?

1

Positive apps

1

Neutral / mixed

0

Negative apps

70/100

Avg sentiment score

Rivals

Who does WeatherFlow compete with?

The rivals identified

Nemeses(3)

Windy Weather World

known forWindy.app - Enhanced forecast

3 apps4.8Weather

Directly serves the same wind sports and maritime audience as FishWeather.

PredictWind

known forPredictWind — Marine Forecasts

2 apps4.8Weather

Both apps target marine enthusiasts with freemium weather forecasting tools, creating direct competition for users seeking precise wind and routing data.

BARVINENKO SERGEY VLADIMIR, IE

known forWeather app - eWeather HDF

1 app4.8Weather

eWeather HDF competes for the same power-user segment that demands granular, multi-source meteorological data and historical context.

Contenders(14)

Windyty, SE

known forWindy.com

2 apps4.7Weather

Both apps target marine enthusiasts with professional-grade weather data, creating direct competition for users seeking high-resolution wind and coastal observations.

Chavazoem Potenutme

known forLive Weather: Forecast & Radar

1 app0.0Weather

Offers general weather planning tools for users who need to track temperature shifts and precipitation.

Corporate Smalltalk Consulting

known forWorldPulse Earth Weather Clouds & Temperature

1 app5.0Weather

This app competes for the visual-data enthusiast by offering global-scale weather visualization and 3D modeling.

Forum Communications Company

known forSt. Cloud Live StormTRACKER

2 apps4.7Weather

This app targets the same regional safety-conscious audience by prioritizing severe weather alerts and high-resolution radar.

Good To Forecast

known forUAV Forecast for Drone Pilots

1 appWeather

Both applications serve niche outdoor hobbyists requiring hyper-local wind and weather data for safety-critical operations, creating overlap in the utility-focused weather market.

This contender competes for the daily-utility user by offering lifestyle-integrated weather data and air quality monitoring.

Igoox

known forNautide: Tides, Wind, Waves +

2 apps4.4Weather

Both apps target maritime enthusiasts by providing localized weather and wind data, competing directly for the same user base of sailors and fishermen.

Meteo365

known forSnow-Forecast.com

3 apps4.8Weather

Provides mountain-specific weather data that serves as a seasonal alternative for sailors who participate in winter sports.

Mosaic S.r.l.

known forClime: NOAA Weather Radar Live

2 apps4.5Weather

Offers specialized tracking modules for hurricanes and wildfires that provide safety-critical data for sailors in storm-prone regions.

Photo & Video Editors - Instant Solution

known forWeather Hi-Def Radar Forecast

1 app4.6Weather

Both apps compete for the same location-based weather monitoring audience, though SailFlow targets marine-specific needs while Weather Hi-Def focuses on general radar tracking.

Pipi Chick Studio

known forNOAA Marine Weather & Forecast

1 app4.6Weather

Both apps target the same maritime audience of boaters and fishermen, competing directly through freemium models that provide marine weather and buoy data.

Ventusky s.r.o.

known forVentusky: Weather Forecast

1 app4.8Weather

Both apps target outdoor enthusiasts requiring high-precision weather data, with Ventusky competing for the same user base through professional-grade visualization tools and multi-model comparison.

WeatherFront

known forWeatherFront - Radar & Models

1 app4.8Weather

WeatherFront competes through advanced visualization tools that appeal to the technical professional user base.

Windfinder

known forWindfinder: Wind & Weather map

1 app4.7Weather

Both apps target the same marine-focused audience with hyper-local wind and weather data, creating direct competition for daily active usage among sailors and kitesurfers.

Same space(41)

Neave Interactive

known forZoom Earth - Weather Forecast

2 apps4.7Weather

Appeals to the same enthusiast audience as FishWeather by providing high-fidelity satellite imagery for storm tracking.

Provides general weather utility for Android users who need persistent notifications for daily planning.

Deep Orbit

known forTiempo, Radar Lluvia y Alertas

1 app4.7Weather

Provides general rain and storm tracking for users who need broader weather context than marine-specific data.

Enjoy Life Studio

known forLocal Weather:Weather Forecast

1 app4.8Weather

Serves general weather needs for users who may also require marine data for coastal travel.

Fillog Studio

known forWeather Forecast, Live Radar

1 app4.5Weather

Targets users needing real-time storm tracking and hurricane data for safety planning.

RODRIGUEZCASTILLO FABIOLA

known forWeather Forecast - Live Alerts

1 app4.0Weather

Provides general severe weather alerts that complement marine safety data for coastal residents.

The Weather Channel

known forThe Weather Channel - Radar

1 app4.8Weather

Serves a mass-market audience that requires precise, hyper-local meteorological data for safety and planning.

Vitality App Studios

known forLocal Weather Forecast - Radar

2 apps4.8Weather

Provides a broader, general-purpose weather utility that overlaps with WindAlert's user base for daily planning.

Weather Forecast & Widget & Radar

known forWeather Radar, Live Radar

1 app4.6Weather

Offers broad weather coverage for users who need both minute-by-minute rain updates and long-range outlooks.

wetter.com Group

known forweather24: Forecast & Radar

1 app4.7Weather

Provides general weather planning for users who need to know if conditions suit outdoor activities.

WetterOnline

known forWeather & Radar Forecast

1 app4.8Weather

Serves commuters and outdoor enthusiasts who require real-time radar visualization alongside their marine weather checks.

ZANKHANA PTE

known forWeather Forecast - Local Radar

1 app4.7Weather

Functions as a general utility for users needing multi-city tracking alongside marine forecasts.

Meteored

known forWeather Radar - Meteored News

1 app4.7Weather

High-accuracy models serve users who prioritize precision over general forecasts.

Weather 365 Days

known forWeather Forecast & Live Radar

1 app4.7Weather

Offers general weather planning tools that overlap with the needs of casual coastal visitors.

Weather Underground

known forWeather data & microclimate :

1 app4.7Weather

Directly overlaps with FishWeather's hyper-local focus by using personal weather station data.

weawow

known forWeather & Widget - Weawow

2 apps4.9Weather

Multi-source comparison helps water sports enthusiasts validate wind data when conditions are unstable.

5660 BA

known forGreat Weather

1 app3.9Weather

Provides general daily weather planning for users who need lifestyle-focused indices.

7th Gear

known forTide Charts

1 app4.8Weather

Focuses on tidal and lunar data that provides essential context for sailors using SailFlow's wind and weather forecasts.

AccuWeather International

known forAccuWeather: Weather Forecast

1 app4.6Weather

Provides hyperlocal forecasting indices that act as a general-purpose alternative to SailFlow's marine-specific wind reports.

ACME AtronOmatic

known forMyRadar Weather Radar

1 app4.8Weather

Specialized radar and aviation data serve professional users.

AirGradient

known forAirGradient Map

1 app5.0Weather

This peer competes in the professional environmental monitoring space by integrating open-source hardware data.

Alpred, S.L.

known forMeteored - Weather Radar

1 app4.7Weather

Offers official severe weather alerts and cross-platform accessibility that complements the specialized marine focus of SailFlow.

Aviation Data Systems

known forMyRadar Accurate Weather Radar

1 app4.8Weather

Functions as a radar-first utility for outdoor enthusiasts who require broader situational awareness than SailFlow's coastal focus.

BoatUS

known forBoatUS - Boat Weather & Tides

1 app4.8Weather

Combines emergency towing dispatch with marine weather, acting as a safety-critical companion to SailFlow's forecasting tools.

Daniel Lampe

known forSTORM-GPS Tornado Tracker

1 app4.9Weather

This peer focuses on the same niche of high-precision, event-driven weather tracking for safety and logistics.

DTN Germany

known forWeatherPro

1 app3.4Weather

Offers general-purpose global weather data and animated satellite imagery for outdoor planning, complementing SailFlow's marine focus.

East End Technologies

known forNOAA Live Weather Radar

1 app4.7Weather

Offers real-time radar and storm tracking that serves as a general-purpose safety tool for sailors monitoring severe weather.

Exovoid Sàrl

known forWeather XL PRO

1 app4.3Weather

General weather utility for daily planning.

Jeremy Barbet

known forHello Aurora:Alerts & Forecast

1 app4.4Weather

Targets the high-latitude enthusiast segment with aurora-specific tracking that serves as a niche companion to SailFlow's marine data.

MACHAPP Software

known forTransparent clock and weather

1 app4.2Weather

Serves general weather needs with a focus on visual widgets and live tracking.

Magic Snail

known forWeatherly:Forecast&Radar

1 app3.3Weather

Serves as a general-purpose weather utility for daily planning that lacks the marine-specific sensor integration found in SailFlow.

Met Office

known forMet Office Weather Forecast

1 app4.6Weather

Provides UK-specific severe weather warnings and interactive maps that serve as a regional utility for sailors operating in British waters.

MeteoLab

known forRainViewer: Live Weather Radar

1 app4.6Weather

Provides general weather radar and precipitation tracking that serves as a broader meteorological context for sailors using SailFlow.

Paul Demers

known forMy PurpleAir

1 app4.2Weather

This app shares the same hardware-centric ecosystem model, focusing on local sensor network monitoring.

Rivolu

known forTide Alert (NOAA) - Tide Chart

1 app4.8Weather

Provides NOAA-sourced tide and current data that complements SailFlow's marine weather insights for coastal navigation.

Surfline/Wavetrak

known forSurfline: Wave & Surf Reports

1 app4.7Weather

Directly overlaps with SailFlow's audience by providing surf-specific environmental data and live camera feeds for coastal conditions.

The Weather Channel Interactive

known forThe Weather Channel - Radar

2 apps4.8Weather

Anchors its value in global forecasting accuracy, serving as a primary source for general weather alerts that sailors check alongside SailFlow.

Ventusky

known forVentusky: Weather Forecast

1 app4.7Weather

Directly competes for the professional outdoor and aviation audience by offering high-precision, altitude-stratified meteorological data.

Weather Forecast - WaiWao Studio

known forWeather Forecast: Live Weather

1 app4.8Weather

Offers global weather observations that complement marine-specific data for travelers.

wetter.com

known forweather 24: Forecast & Radar

1 app4.6Weather

Functions as a general weather planning tool for daily activities that lacks the specialized marine sensor network of SailFlow.

Provides specialized coastal and winter sports data that serves as a visual alternative to SailFlow's marine-focused interface.

New entrants(5)

Areabuzz

known forLive Weather Forecast - Radar

1 app0.0Weather

General weather utility for daily planning.

Brite Technologies

known forTurbulence Forecast - Flight+

1 app5.0Weather

This newcomer targets the professional aviation sector, overlapping with TempestOne's focus on high-accuracy, specialized data.

Deep Orbit B.V.

known forWeather & Rain Radar Forecast

1 app5.0Weather

Provides general rain radar and weather maps that serve as a broad-market alternative to SailFlow's marine-specific forecasts.

Michael Galliers

known forEarthWatch

1 app5.0Weather

EarthWatch targets the drone pilot and outdoor professional segment, competing for the same high-resolution environmental data market.

The App Tower

known forWeather Forecast

1 app0.0Weather

Acts as a minimalist weather utility for general forecasting that lacks the specialized marine sensor depth of SailFlow.

The Analyst's Read

The bottom line on WeatherFlow

Bottom line

WeatherFlow is a dominant niche player that has successfully commoditized proprietary sensor data into a suite of high-performing, sport-specific weather tools. Their hardware-software integration creates a significant barrier to entry for software-only competitors in the maritime weather space.

Frequently asked questions

How many apps does WeatherFlow publish?
WeatherFlow has 10 apps tracked by Marlvel, primarily in the Weather category.
What kind of apps does WeatherFlow make?
WeatherFlow's portfolio is concentrated in Weather, with an average rating of 4.0/5 across rated apps.
What is WeatherFlow's top app?
By review volume across the portfolio, SailFlow: Sailing Forecasts is WeatherFlow's best-known app tracked by Marlvel.
In how many countries are WeatherFlow's apps available?
Marlvel has tracked WeatherFlow's apps across 10 countries.

What fed this analysis

Apps analyzed:
10
With full intel:
1
With overview:
10
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 WeatherFlow, 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. “WeatherFlow intelligence.” Updated 2026-04-24. https://marlvel.ai/publishers/weatherflow

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Data licensed under CC-BY-NC 4.0