App Overview

Partly Sunny icon

Partly Sunny

Joseph Hribar · Weather

Partly Sunny shows your weather in quick glances and detailed looks.

$2.99 · In-app purchases

PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.6
778 ratings · Top 15%

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 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 Partly Sunny: 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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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 broader range of location services and support for international cities.

Assumption to check: Limited locations for weather data

Validate with people who use this workflow before building.

Hypothesis 2

Create clearer explanations and onboarding for premium features.

Assumption to check: In-app purchase confusion

Validate with people who use this workflow before building.

Hypothesis 3

Utilize multiple weather APIs for improved accuracy.

Assumption to check: Occasional data inaccuracies

Validate with people who use this workflow before building.

Hypothesis 4

Allow users to customize their dashboard and notifications based on preferences.

Assumption to check: Limited customization options

Validate with people who use this workflow before building.

App evidence

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

App Store description

Partly Sunny shows your weather in quick glances and detailed looks. Need to check if it will rain today? Or see the humidity or UV index over the next few hours? Or look at a radar view of the approaching storm? Partly Sunny has you covered. Quick Glances Get an overview of what’s happening in the sky at your current location and your favorite locations. Detailed Looks Get more details about what’s happening throughout the hour, the day, and the week at your locations. Hourly Graphs See how your selected conditions change over the next several hours. Choose from temperature, precipitation, cloud cover, humidity, UV index, wind, and more. Tap the graph to change the plotted condition. Touch & hold the graph and drag left & right for a detailed look at each hour. Week View Get a quick glance at the week’s forecast. Tap any day for a detailed look at that day. With a monthly or yearly subscription, join the Partly Sunny Club and unlock more: Interactive Weather Map See approaching storms and more on an interactive map. Map layers available: • Precipitation radar • Severe-weather warnings (US, Canada, & Europe) • Storm cells (US) • Tropical storms • Temperatures • Wind Speeds • Radar & Clouds (US) • Clouds Pull-to-Refresh Pull down in Location View to refresh the location’s forecast on demand. More Locations Save more locations in your locations list. Custom App Icon & Theme Customize the Partly Sunny icon on your Home Screen and the theme color in the app. Whether or not you’re part of the Club, there’s still more: • Forecasts powered by Apple Weather • Precipitation-intensity graph when it’s raining or snowing • Show actual or “feels like” temperatures throughout the app and quickly switch with a handy gesture • Customizable condition below hourly graphs • Customizable condition for daily forecasts • Links to pollen forecasts and NOAA weather offices (US locations) • Location renaming and fine-tuning Thank you for using and supporting Partly Sunny! Even when the weather isn’t enjoyable, I hope you enjoy checking the weather with Partly Sunny! – Joe ——— Partly Sunny has been featured by Apple, MacStories, AppAdvice, and Lifehacker. Partly Sunny “introduces a robust, beautiful new way to view weather information. […] What’s immediately striking about Partly Sunny’s design is that it feels designed to belong in iOS. It’s an app that feels built by Apple if the company decided to make a massive iterative change to its own stock Weather app.” – Jake Underwood, MacStories “If you are looking for minimalism in your weather app, then Partly Sunny will satisfy your cravings. […] Partly Sunny offers the information you need in a concise and flexible way.” – Christine Chan, AppAdvice ——— Subscription Details • Payment will be charged to your Apple ID account at confirmation of purchase. • Your subscription will automatically renew unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. • Privacy policy: https://partlysunnyapp.com/privacy.html • Terms of Use: https://partlysunnyapp.com/terms.html

Written user reviews are not shown here. Check current App Store reviews >

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.

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BUILD KIT DIFFICULTY
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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.