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
ThriftLens: AI Thrift Profit
HOW TO USE THRIFTAI:
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
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 included18 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 ThriftLens: AI Thrift Profit: 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
Incorporate user feedback to refine analysis algorithms.
Assumption to check: Users may find difficulty in accurately analyzing item values.
Validate with people who use this workflow before building.
Hypothesis 2
Expand categories and include more comprehensive databases.
Assumption to check: Limited item categories might restrict user choices.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize image processing and analysis algorithms for faster performance.
Assumption to check: The app can be slow during image upload and analysis.
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
HOW TO USE THRIFTAI: After onboarding, use your camera to scan any item you’re interested in reselling. Our AI instantly analyzes the image and provides a detailed report on brand recognition, resale value, and profit potential. View your results in your personal dashboard, where all your scans are automatically stored and organized for easy tracking. Stay ahead by regularly scanning new finds to discover trends, monitor value shifts, and make smarter thrifting decisions. ThriftAI is your intelligent resale assistant—helping you identify, price, and profit with confidence. From quick item scans to in-depth value insights, ThriftAI makes reselling smarter, faster, and more accurate. Your data stays secure and private on your device. NOTE: ThriftAI provides estimates based on market data and trends. Always verify prices independently before listing or purchasing. ** ALL FEATURES OF THIS APP REQUIRE A MONTHLY OR WEEKLY SUBSCRIPTION ** https://thriftlens-website.vercel.app/privacy https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 Navigation
Axios
React Native Image Picker
Zustand
Expo
BUILD KIT DIFFICULTY
Advanced
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.
