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
Ember Feed
A calm, beautiful home for your feeds.
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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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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 Ember Feed: 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
Incorporate a wider variety of news sources to enhance diversity.
Assumption to check: Limited article sources lead to repetitive content.
Validate with people who use this workflow before building.
Hypothesis 2
Implement offline reading capabilities to improve user experience.
Assumption to check: No offline mode for reading articles.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize their feeds based on topics of interest.
Assumption to check: Lack of customization options for the news feed.
Validate with people who use this workflow before building.
Hypothesis 4
Add text-to-speech functionality for improved accessibility.
Assumption to check: No text-to-speech feature for 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
A calm, beautiful home for your feeds. Ember Feed is a modern RSS reader for macOS designed for people who want focus, clarity, and control over their news. No algorithms. No noise. Just the content you choose — presented beautifully. Designed to Feel Good Reading should feel calm. Ember Feed features soft pastel gradient themes, light and dark mode, and a curated selection of 20 beautiful fonts so you can create a reading space that feels uniquely yours. Seamless iCloud Sync Your feeds and reading progress stay in sync across your devices with iCloud. Start reading on your Mac and continue right where you left off. Stay Organized • Organize feeds into folders • Personalize folders with custom emoji icons • Mark articles as read or unread • Save articles for later Your feed structure is fully yours — simple, flexible, and intuitive. Import and Export with Ease Already using another RSS reader? Import your subscriptions instantly with OPML. You can also export anytime — your data always belongs to you. Offline-Ready Articles are cached for offline reading, so your feeds are available even without an internet connection.
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
Axios
React Navigation
Zustand
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.
