App Overview

Ventusky: Weather Forecast icon

Ventusky: Weather Forecast

Ventusky s.r.o. · Weather

Ventusky All-in-One Weather is a fusion of 20+ of the world's best models, live radar, satellite and 40,000+ webcams, delivering industry-leading accuracy for planning everything from morning jogs to transatlantic flights.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
35,279 ratings · Top 5%

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Ventusky: Weather Forecast: map the core Weather workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Ventusky All-in-One Weather is a fusion of 20+ of the world's best models, live radar, satellite and 40,000+ webcams, delivering industry-leading accuracy for planning everything from morning jogs to transatlantic flights. WE BRING A UNIQUE SET OF FEATURES LIKE: - Hyperlocal 14-days weather forecast with up to hourly resolution - 80+ weather maps - Live radar and lightnings detection - 40,000+ worldwide webcam coverage - Lock and home screen widgets with forecasts, webcams, or radar - Integration with Watch OS - 3D interactive globe - Customizable push notifications for: wind, waves, freezing rain, pressure, lightning strikes, umbrella reminder or morning/evening summary. - Professional features like isolines or weather fronts - Dual wind animations for 2 different altitudes - Extensive air quality information - Hurricane and storm tracking - compare tracks from multiple models and stay safe Use Ventusky everyday to plan your activities and stay ahead of the weather:   1) Joggers & Outdoor Athletes: Plan with Microscale Precision For runners, cyclists, and hikers, Ventusky provides updates critical for avoiding sudden weather shifts. Hyperlocal Wind Gust Maps: Visualize wind speed changes at high resolution, ideal for route planning in mountainous regions. Lightning Strike Alerts: Receive push notifications for strikes within selected distance, synced to wearable device haptics for hands-free safety. Feels-Like Temperature: Combines humidity, wind chill, and solar radiation to advise on heatstroke risks during summer runs.   2) Vacation Planners: Verify Conditions in Real Time Travelers leverage global webcam network and 14-day forecasts to optimize itineraries. Live Cams: Compare real-time footage from 40K+ coastal, ski resort, and urban cameras to assess conditions before departure. Tropical Storm Preparedness: Track hurricanes predicting storm paths and landfall in advance. Air Quality Indexes: Plan trips using SILAM model data on PM2.5, NO2, ozone levels and more.   3) Meteorologists & Professionals: Industrial-Grade Tools Ventusky serves as a field toolkit for pilots, sailors, and researchers needing altitude-stratified data: Aviation Wind Layers: Animate wind patterns at 16 altitudes (0m–13km) for flight path optimization. Marine Forecasting: Access ocean current models and surge predictions for offshore operations. Agricultural Planning: Display the monthly anomaly in precipitation in easy to use map.   MULTI-MODEL FUSION FOR UNMATCHED ACCURACY Why Does Ventusky Outperform Competitors? Ventusky’s algorithms integrate data from the world’s most advanced numerical weather prediction (NWP) systems, each renowned for specialized applications. In addition to the well-known ECMWF and GFS models, it also displays data from the German ICON model, which stands out for its high resolution covering the entire world. A wide range of high-precision local models is available. Some are updated as frequently as every 10 minutes based on radar and satellite readings, providing highly accurate real-time precipitation data. Ventusky automatically selects the most precise model for your location, but you can also compare them yourself.   LIST OF WEATHER LAYERS: Temperature (16 altitude levels) Feels like temperature Precipitation (1 hour, 3 hours, cumulated, monthly anomaly, Freezing rain, Rain, Snow) Radar and lightnings Satellite Wind gusts Air Quality (PM2.5, PM10, NO2, SO2, O3, CO, Dust, AQI) UV-index Probability of Aurora LIST OF WEATHER LAYERS (PREMIUM) Cloud coverage (High, Mid, Low, Base, Total cover, Fog) Wind speed (16 altitude levels) Air pressure Thunderstorms (CAPE, CAPE*SHEAR, Wind shear, CIN, Lifted index, Helicity) Sea (Significant, wind and swell waves period and height, Currents, Tidal currents, Tide, surge) Humidity (4 altitude levels) Dew Point Snow cover (Total, New) Freezing level Visibility The app is completely free of ads or tracking scripts. Do you have questions or suggestions? Visit my.ventusky.com.

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement AI-driven weather forecasts for better accuracy.

Assumption to check: Inaccurate weather predictions

Validate with people who use this workflow before building.

Hypothesis 2

Add automatic location detection and updating.

Assumption to check: Limited location updates

Validate with people who use this workflow before building.

Hypothesis 3

Simplify the UI design for better user experience.

Assumption to check: Cluttered interface

Validate with people who use this workflow before building.

Hypothesis 4

Enable caching of weather data for offline access.

Assumption to check: Poor offline functionality

Validate with people who use this workflow before building.

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
React Navigation
Axios
React Native Maps
Zustand
BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.