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
Princess Polly: Fashion Shop
Shop women’s clothing, trending styles and viral looks in one place
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
9,920 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.
Build your own version
Build Kit
Make this idea yours
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/
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 Princess Polly: Fashion Shop: map the core Shopping 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
Expand product range and introduce exclusive collections
Assumption to check: Limited product variety compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a live chat feature for real-time support
Assumption to check: Slow customer service response times
Validate with people who use this workflow before building.
Hypothesis 3
Provide detailed size guides and user reviews
Assumption to check: Inconsistent sizing information
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the checkout process with fewer steps and clearer instructions
Assumption to check: Complex checkout process
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
Shop women’s clothing, trending styles and viral looks in one place. Princess Polly makes online shopping easy, with fast shipping, exclusive drops and endless outfit inspo. The only fashion app you’ll ever need. TRENDING STYLES, ALL IN ONE PLACE Princess Polly is your go-to fashion shopping app for women’s clothing, trending styles and viral looks. Designed to make online shopping effortless, you’ll find the latest fashion trends, new arrivals and outfit inspiration, all in one place. VIRAL LOOKS YOU’LL ACTUALLY LOVE From going out outfits to party dresses, mini dresses, tops and everyday staples, Princess Polly has the viral pieces you’re seeing everywhere right now. Discover iconic looks worn by your favorite influencers, with collections that make styling your next look easier than ever. EASY, FAST & SEAMLESS SHOPPING Princess Polly is everyone’s go-to fashion destination for a reason. Seamless shopping, cool girl styles, quick checkout, Afterpay and Klarna available, plus fast and free shipping on orders over $50 USD. Changed your mind? We offer 30-day returns too! EXCLUSIVE DROPS & EARLY ACCESS Stay ahead of the latest fashion trends with early access to new drops, app-exclusive offers and real-time notifications. Whether you’re planning your next event or refreshing your wardrobe, Princess Polly makes fashion shopping easier, faster and more fun. APP PERKS • Easily shop the latest women’s clothing and trending styles • Get early access to drops, exclusive offers and influencer edits • Enjoy fast checkout with Afterpay, Klarna and express shipping options • Save your most wanted pieces and get back-in-stock alerts instantly Download now and start shopping your next look with Princess Polly.
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
Zustand
React Navigation
React Native Reanimated
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.
