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
NetGalley Shelf
NetGalley Shelf is a reading and listening app for NetGalley members
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.1
82 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 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 NetGalley Shelf: map the core Books 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 error handling and testing.
Assumption to check: Low rating due to bugs and crashes
Validate with people who use this workflow before building.
Hypothesis 2
Add more functionalities like sorting and filtering.
Assumption to check: Limited features for book tracking
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and improve layout.
Assumption to check: Cluttered UI and navigation
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance and loading times.
Assumption to check: Poor performance with large libraries
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
NetGalley Shelf is a reading and listening app for NetGalley members. NetGalley helps publishers and authors promote digital review copies and audiobooks to book advocates and industry professionals. Publishers make digital review copies and audiobooks available for the NetGalley community to discover, request, read, and review. NetGalley does not sell any content, including books or audiobooks. Each book on NetGalley is provided to specific members by the publisher directly, at no cost to the NetGalley member. Books on the NetGalley site are used for review and promotional purposes only. Users of the NetGalley Shelf app will need to register as NetGalley members on NetGalley.com or NetGalley.co.uk, then all your approved NetGalley books and audiobooks will automatically appear in this app. No need to press Download on the NetGalley website! Reading is easy and convenient using the NetGalley Shelf app. Download approved books for access on the go, or start listening right away with streaming for audiobooks.
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
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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.
