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
Feedster: RSS Reader
Feedster: Your Personalized RSS Reader
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.7
3 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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Feedster: RSS Reader: 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
Integrate more RSS feeds and sources.
Assumption to check: Limited article sources compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Focus on improving UI/UX design and navigation.
Assumption to check: Poor user reviews indicate usability issues.
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline reading capabilities.
Assumption to check: No offline reading functionality.
Validate with people who use this workflow before building.
Hypothesis 4
Add features for personalized feed settings.
Assumption to check: Limited customization options for users.
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
Feedster: Your Personalized RSS Reader Feedster is a powerful and intuitive RSS reader designed to streamline how you follow your favorite websites, blogs, and news sources, all in one convenient app. What is Feedster? Feedster offers a seamless, personalized content consumption experience. Whether you're tracking the latest news, staying updated on your favorite blogs, or following niche sites, Feedster organizes everything in one place, so you never miss a beat. Key Features - Customizable Feeds: Add and organize your preferred RSS feeds to tailor your content experience. - Effortless Synchronization: Keep your feeds updated across all your Apple devices with automatic cloud sync. - Reader View: Enjoy distraction-free reading with our built-in reader mode. - Save for Later: Bookmark articles and read them at your convenience (Coming Soon). - Search & Discover: Easily search for feeds and articles to find the content you care about. - Recent Articles Widget: Quickly view the latest articles through our convenient home screen widget. - Dark Mode: Switch to Dark Mode for a more comfortable reading experience at night. - Privacy-Focused: Your privacy is our priority—your data is securely saved through Apple iCloud, ensuring you maintain full ownership. Why Choose Feedster? Feedster was crafted with a user-first approach, focusing on creating a smooth and enjoyable experience. Happy reading! Your Feedback Matters I'm committed to continuously improving Feedster. Your feedback is invaluable in helping me make the app even better, so don’t hesitate to share your thoughts with me!
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
React Query
React Navigation
React Native Paper
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.
