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.
App Overview
IndyStar: Indianapolis Star
IndyStar has been Central Indiana’s news source for more than 120 years
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
5,298 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 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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for IndyStar: Indianapolis Star: map the core News 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 better offline reading capabilities with caching.
Assumption to check: Limited offline access to articles
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize notification preferences by topic.
Assumption to check: Push notifications can be overwhelming
Validate with people who use this workflow before building.
Hypothesis 3
Introduce a premium ad-free experience for subscribers.
Assumption to check: Ads can disrupt reading experience
Validate with people who use this workflow before building.
Hypothesis 4
Enhance search functionality with advanced filters.
Assumption to check: Difficulty finding specific articles
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
IndyStar has been Central Indiana’s news source for more than 120 years. From in-depth investigations that hold the powerful to account to authoritative coverage of Indianapolis sports, culture and entertainment, we cover the news that shapes our communities. Our mobile app lets you personalize how you get the news that’s most important to you. Watchdog reporting and expert analysis on Indianapolis government and Indiana’s political scene? It’s in the app. Insider access to the Colts, Pacers, Fever, and college and high school sports? It’s in the app. Your best options to take in Central Indiana’s arts and entertainment scene? It’s in the app. Local news from Central Indiana’s trusted news source, plus national news from across the USA TODAY Network are all in the palm of your hand with the IndyStar app. APP FEATURES: • Real-time breaking news alerts • A personalized feed on the all-new For You page • The eNewspaper, a digital replica of our print newspaper Subscription Information: • The IndyStar app is free to download and all users can access a sampling of free articles every month. • Subscriptions are charged to your account at confirmation of purchase and automatically renew each month or year, unless turned off in your account settings at least 24 hours before the end of the current period. See "Subscription Support" in the app's Settings for more details and customer service contact information. MORE INFORMATION: • Privacy Policy: https://cm.indystar.com/privacy/ • Terms of Service: https://cm.indystar.com/terms/ • Help Center: https://help.indystar.com
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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
React Navigation
BUILD KIT DIFFICULTY
Expert
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.
