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
Gossamer Pro
Gossamer Pro is the paid edition of Gossamer, for people who already know they value a lighter, more intentional way to connect
$4.99 · In-app purchases
PRICE
$4.99
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 included14 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Gossamer Pro: map the core Social Networking 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 features like polls, Q&A, or events to boost interaction.
Assumption to check: Limited engagement features compared to competing apps
Validate with people who use this workflow before building.
Hypothesis 2
Implement a trending section or explore page to help users find new content.
Assumption to check: Lack of content discovery mechanisms
Validate with people who use this workflow before building.
Hypothesis 3
Introduce content moderation tools and user reporting features.
Assumption to check: Potential for spam or low-quality posts
Validate with people who use this workflow before building.
Hypothesis 4
Offer a free tier with limited features to attract more users.
Assumption to check: Subscription model may deter casual 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
Gossamer Pro is the paid edition of Gossamer, for people who already know they value a lighter, more intentional way to connect. It features QR Notes and better QR Code management functions Like Gossamer, Pro lets you start conversations without sharing your phone number or email. You connect through a simple code, talk privately, and decide when a connection deserves to become permanent. Gossamer Pro includes everything in the free app, with additional flexibility and control available immediately, without subscriptions or in-app purchases. Why Gossamer Pro • Everything included in Gossamer • Additional control and flexibility from day one • No subscriptions • No in-app purchases • One-time purchase Gossamer Pro is for creators, professionals, and anyone who prefers an upfront purchase and a calm, ad-free experience. Connection doesn’t have to be permanent to be meaningful. Gossamer Pro simply gives you more control over when it becomes so.
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.
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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.
