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
Thrift - Find & Scan
Thrift helps you thrift smarter
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
161 ratings · Top 15%
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 included19 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 Thrift - Find & Scan: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Thrift helps you thrift smarter. Snap a photo of any clothing item to get instant resale value estimates, discover the best thrift spots near you, and shop one-of-one secondhand finds from real thrifters. SCAN & PRICE Point your camera at any clothing item — vintage tees, designer jackets, sneakers, denim, and more. Our scanner identifies the brand, style, and condition, then gives you a resale price range and a 1–100 resale score so you can make quick, confident decisions at the rack. SHOP SECONDHAND Browse a marketplace of hand-picked secondhand finds. Search by brand, save what you love, and check out securely in seconds with Apple Pay or card. Every order ships with tracking, and your payment is protected until your item arrives. SELL FOR FREE Turn your finds into cash. Scan an item and list it in seconds — photos, brand, and pricing are filled in for you. Listing is free, shipping labels are handled for you, and you get paid straight to your bank after delivery. No printer? Ship with a QR code at the Post Office. MAKE OFFERS & MESSAGE Negotiate like a real thrifter. Make an offer on any item, counter, and chat with buyers and sellers right in the app. FIND THRIFT STORES Discover thousands of thrift stores, goodwill bins, hidden gems, vintage shops, and fire picks — all on one map. Whether you're in a new city or exploring your own neighborhood, Thrift helps you find the best spots to shop. THRIFT PRO Unlock unlimited scans and full map access with fire picks and goodwill bins locations with a Thrift Pro subscription. Buying and selling are always free. Subscription options: • Yearly: $19.99/year with a 3-day free trial • Monthly: $4.99/month Payment will be charged to your Apple ID account at confirmation of purchase. Your subscription automatically renews unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscription anytime in your Apple ID account settings. Any unused portion of a free trial will be forfeited if you purchase a subscription. Privacy Policy: https://tabcreativestudio.github.io/policies/privacy Terms of Use: https://tabcreativestudio.github.io/policies/terms
Written user reviews are not shown here. Check current App Store reviews >
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 partnerships with local thrift stores to increase item listings.
Assumption to check: Limited item availability in some regions
Validate with people who use this workflow before building.
Hypothesis 2
Improve scanning algorithm and database accuracy for better results.
Assumption to check: Inaccurate item scanning results
Validate with people who use this workflow before building.
Hypothesis 3
Implement machine learning for tailored item suggestions.
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Optimize backend services and caching strategies for smoother performance.
Assumption to check: Slow app performance during peak times
Validate with people who use this workflow before building.
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
expo-camera
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.
