App Overview

Weathervane: Live Radar Map icon

Weathervane: Live Radar Map

Snoflo.org LLC · Weather

Weather apps got greedy

$5.99

PRICE
$5.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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

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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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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.

App evidence

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

App Store description

Weather apps got greedy. Subscriptions for radar. Ads on the forecast. Accounts to see if it will rain. Weathervane is the opposite: everything, for $5.99, once. RADAR THAT RESPECTS YOU Smooth, animated NOAA radar — the past two hours plus a 30-minute nowcast. Scrub it by hand or let it play. No trial wall between you and the storm, and if data ever goes stale, the app tells you instead of pretending. THE SENTENCE YOU ACTUALLY NEED "Light rain starting in ~15 min." Minute-scale rain forecasts for exactly where you stand — when it starts, when it stops. And honestly worded: every sentence is cross-checked against two independent forecast systems, and when they disagree, Weathervane says "possible" and shows you the probability instead of inventing false precision. WARNINGS, INSTANTLY Tornado, severe thunderstorm and flood warnings drawn live on the map the moment the National Weather Service issues them, with watches and advisories shaded beneath. Save home, the cabin, the kids' school — flip the bell and your phone checks in the background and notifies you when a warning covers a place you care about. MORE LAYERS THAN APPS TEN TIMES THE PRICE Forecast rain totals out to 72 hours. Snowfall, past and forecast. Temperature, wind and drought. Live river flow. Ocean wave heights. Active wildfires and smoke plumes. Tap anywhere and one popup reads out every active layer at that exact point, with an interactive forecast chart. A REASON TO OPEN IT ON CLEAR DAYS Sky Tonight scores the stargazing where you stand — light pollution, moon phase, and each night's cloud forecast — and watches NOAA's space-weather feed so you get an aurora alert when a geomagnetic storm can actually reach your latitude. ON YOUR HOME SCREEN AND LOCK SCREEN Widgets with current conditions and the rain sentence, and a Live Activity countdown when rain is minutes away. WHAT WEATHERVANE DOESN'T HAVE — ON PURPOSE - No subscription. Ever. $5.99 buys every feature and every future update. - No ads. Not even in a "free tier." There isn't one. - No account. Nothing to sign up for, nothing to leak. - No trackers. Your location goes to the National Weather Service, not to advertisers. We run no server and hold no data about you. Weathervane is built by the small team behind Snoflo, on the same federal data pipelines that power our forecasting site and eight outdoor apps. Severe-weather coverage is for the United States; radar and forecasts work worldwide. Weathervane is not an official warning service — always heed Wireless Emergency Alerts and local authorities.

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Screenshots

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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
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.