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
Journal Star
Your story lives in Lincoln
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.3
238 ratings · Below Average
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.
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 Journal 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
Offer extensive customization for user preferences.
Assumption to check: Limited customization options for notifications and categories.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a personalized feed algorithm to enhance content relevance.
Assumption to check: Poor user reviews regarding content quality and relevance.
Validate with people who use this workflow before building.
Hypothesis 3
Ensure offline reading capabilities for saved articles.
Assumption to check: Issues with offline access to saved articles.
Validate with people who use this workflow before building.
Hypothesis 4
Create a clearer, more intuitive navigation that guides users effectively.
Assumption to check: Unclear navigation structure leading to user confusion.
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
Your story lives in Lincoln. Get in-depth stories from Lincoln, Nebraska's No. 1 news outlet – including breaking news sports, opinion, obituaries, entertainment, and politics. From reporting on the Huskers to the news that matters most in your community, the state and beyond, we cover it all. Easily access the very latest news in an app built for you. Read, see, and hear exclusive commentary, stunning photography, video updates, and binge-worthy podcasts. Support local journalism by subscribing today for unlimited digital access. Our app features: * Your Stories – personalize your experience by selecting the local news topics that matter most to you * Get notified – stay in the loop by selecting alerts for news, sports, weather, and more * Easy navigation – see all the latest local stories by simply swiping up/down, and left/right * Read stories your way – either in the News Feed or via the E-edition * Breaking news updates – top banners let you know what’s happening right now * Continue watching – pause a video and pick up where you left off across devices * Bookmark for later – save stories to enjoy at your leisure * Listen to articles – press the play button to listen instead * Customize your text size – make the content bigger or smaller in your profile settings * Weather where you are – hourly, 10-day forecasts, and frequent video updates Free to download. Subscribers enjoy unlimited access to breaking news updates, analysis, and more. Get the Lincoln Journal Star in Your Inbox Get convenient, curated updates delivered to your Inbox. Sign up for Breaking News updates as they happen, the Afternoon Update for a roundup of the latest local top stories, Local Sports for the latest sports headlines, Food & Drink for foodies, Garage Sales for bargain hunters and many more. Visit https://journalstar.com/newsletters/ to view and subscribe to all of The Lincoln Journal Star Newsletters. Keep Up with The Lincoln Journal Star Follow us on Facebook and other social platforms: https://x.com/JournalStarNews https://www.pinterest.com/ljsfeatures/ https://www.instagram.com/journalstarnews/ https://www.facebook.com/LincolnJournalStar/ https://www.youtube.com/user/JournalStarNews https://www.linkedin.com/company/lincoln-journal-star/ About The Lincoln Journal Star The Lincoln Journal Star is the premier news and information source in Southeast Nebraska covering local news, government, sports and events on https://journalstar.com/. Along with the area’s leading daily newspaper and website, we publish several niche publications and provide full service digital advertising services. We'd love to hear what you think! For any technical issues or questions, contact us at [email protected] https://journalstar.com/terms The Lincoln Journal Star is part of Lee Enterprises.
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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
React Native
Expo
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react-navigation
@react-native-gesture-handler
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.
