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
Knitwise by Feral Scene
Knitwise is the fiber arts project management app built by a maker, for makers.
$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 included15 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 Knitwise by Feral Scene: map the core Lifestyle 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 social sharing and collaboration features.
Assumption to check: Lack of community features for sharing projects
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize project categories and tags.
Assumption to check: Limited customization options for project tracking
Validate with people who use this workflow before building.
Hypothesis 3
Add reminder functionality for project timelines.
Assumption to check: No reminders for project deadlines
Validate with people who use this workflow before building.
Hypothesis 4
Enhance UI with modern design trends and animations.
Assumption to check: Basic UI without modern design elements
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
Knitwise is the fiber arts project management app built by a maker, for makers. Community Discover local fiber arts groups, yarn shops, farms, mills, and fiber businesses near you. Share resources — blog posts, tutorials, project guides — with the fiber arts community. Search over 40,000 knitting, crochet, weaving, and spinning patterns powered by Ravelry and our community resources . Save your favorites, track your project status, and organize patterns into collections — all in one beautiful, ad-free app. Your Library Save patterns from Ravelry, add notes, track status from Not Started to Completed, and organize into custom collections. Use the Stash Buster to match your yarn yardage and weight to patterns you already own. Explore Search Ravelry's entire pattern database with advanced filters — yarn weight, yardage, needle size, difficulty, craft type, price, and rating. Save any pattern to your library with one tap. Favorite Designers Follow your favorite Ravelry designers, view their profiles, and browse their pattern catalogs. One $4.99 purchase. No subscription. No ads. Ever. — Erin James, Feral Scene LLC
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
React Navigation
Zustand
Axios
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.
