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
E! News
Stay ahead of all things pop culture with the Emmy®-nominated E! News app
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
48,287 ratings · Top 5%
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 included15 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 E! News: 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
Allow users to set preferences for specific news topics and notification frequency.
Assumption to check: Notifications can be overwhelming and not easily customized.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more organized bookmarks section with categories.
Assumption to check: Users often find it difficult to locate saved articles.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance algorithm to suggest articles based on user reading history.
Assumption to check: Content can become repetitive and lacks personalized recommendations.
Validate with people who use this workflow before building.
Hypothesis 4
Optimize performance for better speed and stability, especially with large feeds.
Assumption to check: App may crash or slow down with heavy loads.
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
Stay ahead of all things pop culture with the Emmy®-nominated E! News app. Get the latest celebrity gossip, breaking news, red carpet moments, and exclusive videos, personalized just for you, all in one place. Stay in the know. • Get real-time updates on the hottest stories in celebrity news and entertainment. • Instantly find any celebrity, show, or topic with our easy-to-use search tool. • Browse curated galleries of stunning celebrity photos – couples, fashion, and more. • Personalize your experience with My News to follow only what interests you and set alerts to stay updated. Watch live and on-demand. • Access Live from E! livestreams of award shows, movie premieres, and more, featuring your favorite stars. • Experience entertainment news in a fresh, social media-inspired video format. • Unlock behind-the-scenes clips of top E! shows like Keeping Up with the Kardashians and Dirty Rotten Scandals. Get exclusive red carpet access. • Get up close with the biggest stars at the Oscars, Emmys, Grammys, and more. • Watch E! not just report the news but create moments with your favorite celebrities. • See the hottest Glambots and star-studded red carpet looks live. With the E! News app, you’ll never miss a beat in the world of pop culture, entertainment news, and fashion trends. Download now to stay updated on everything Hollywood, wherever you are. This app features Nielsen proprietary measurement software which will allow you to contribute to market research, like Nielsen’s TV Ratings. To learn more about our digital measurement products and your choices in regard to them, please visit http://www.nielsen.com/digitalprivacy for more information. Your Privacy Choice: https://www.versantprivacy.com/privacy CA Notice: https://www.versantprivacy.com/privacy/california-consumer-privacy-act
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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
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Axios
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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.
