App Overview

Rain Maps icon

Rain Maps

ziad aljohani · Weather

Rain Maps shows you where it is raining right now, where the rain is heading and what your weather will do next, on a live map built for following rain.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
84 ratings · Top 30%

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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Build Kit

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A product spec, screen plans, and build steps for your coding agent.

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What's included18 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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Quick prompt

> SELECT BUILD PLATFORM:

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

// RORK SYSTEM PROMPT
Rork plan preview for Rain Maps: 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

Rain Maps shows you where it is raining right now, where the rain is heading and what your weather will do next, on a live map built for following rain. LIVE RAIN RADAR • Live radar from several sources, including Doppler radar, refreshed every few minutes • A short-term radar forecast for the minutes ahead • Play the last hours as an animation and share it as a video or GIF • Lightning strikes, storm cells and the direction storms are moving EVERY WEATHER MAP • Satellite clouds, dust and fog • Weather fronts and wind • Rain, temperature and wind forecasts on the map from several global models (some need a subscription) A NEW WEATHER PAGE • A living sky that shows the clouds, rain, thunder and moon you see outside • Rain in the next hour, minute by minute • Hour-by-hour and daily forecasts • Official weather warnings and a clear summary of what is coming • The moon, sunrise and sunset, UV, wind and more ALERTS BEFORE THE RAIN • A notification shortly before rain starts at your location or your saved places • Alerts for lightning nearby ON YOUR SCREEN AND YOUR WRIST • Home Screen and Lock Screen widgets • A Live Activity that follows approaching rain • An Apple Watch app with complications MORE • Turn-by-turn navigation with the weather on your map • Report the weather where you are and see what people nearby report Rain Maps is developed by Yanbu Weather. Terms of Use: https://www.yanbuweather.com/terms/Apps/rainMaps/termsofuse.html Privacy Policy: https://www.yanbuweather.com/terms/Apps/rainMaps/privacypolicy.html Website: https://www.yanbuweather.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 a more reliable weather API with real-time updates

Assumption to check: Users report inaccurate weather data

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to customize alert preferences and thresholds

Assumption to check: Limited customization options for alerts

Validate with people who use this workflow before building.

Hypothesis 3

Simplify the UI and streamline the user experience

Assumption to check: Cluttered interface with too many features

Validate with people who use this workflow before building.

Hypothesis 4

Optimize map rendering for faster loading and smoother interactions

Assumption to check: Slow loading times on radar maps

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
Supabase
Axios
React Navigation
React Native Reanimated
BUILD KIT DIFFICULTY
Intermediate

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.