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
AntiqueValue: Antique Identify
Identify & value antiques in seconds!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
587 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 included17 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 AntiqueValue: Antique Identify: map the core Reference 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
Implement advanced image recognition and AI features for better identification.
Assumption to check: Users find it difficult to identify antiques accurately.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance database with more detailed descriptions and historical context.
Assumption to check: Limited information on some antiques.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the navigation structure and add a tutorial for first-time users.
Assumption to check: Navigation can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 4
Provide clearer information about benefits of premium features before paywall.
Assumption to check: In-app purchases may be unclear.
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
Identify & value antiques in seconds! Powered by AI, we recognize furniture, ceramics, watches, paintings, and more. Just snap a photo to uncover hidden treasures. AntiqueValue is designed for collectors, resellers, and anyone curious about vintage and historical objects. Learn more about the items you discover and keep your collection organized in one place. What You Can Do — Photo-Based Antique Identification Take a photo to analyze antiques and vintage objects. AntiqueValue provides possible identifications along with helpful background information. — Estimated Market Value View estimated value ranges based on comparable market listings to better understand potential worth. — Condition Insights Receive general guidance on how condition may influence collectibility and value. — Personal Collection Management Save identified items and organize them into your own digital antique collection. — Learn About Antiques Discover articles and insights about notable artifacts, collecting tips, and the history behind antiques. Who AntiqueValue Is For - People who inherited antiques and want to learn more - Collectors organizing and documenting their collections - Sellers researching potential resale value - Anyone interested in vintage and historical objects Why People Use AntiqueValue - Quick and simple photo identification - Helpful market value references - Easy collection organization - A convenient way to explore antique knowledge Note: After confirming your purchase, payment will be charged to your iTunes Account. - Unless you turn off auto-renew at least 24 hours before the end of the current subscription period, your subscription will automatically renew. - Your account will be charged for renewal within 24 hours prior to the end of the current subscription period, and the renewal cost will be displayed. - You can manage your subscription and turn off auto-renewal at any time by accessing your iTunes Account settings after purchase. - If you have a free trial, any unused portion will be forfeited upon purchase of a subscription. - To avoid being charged, cancel your subscription or free trial at least 24 hours before it ends by turning off auto-renewal in your iTunes settings. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free version. Have feedback or questions? Reach out to our team at [email protected] Terms of Service：https://sites.google.com/view/antiquevalue-antique-identify/%E9%A6%96%E9%A1%B5 Privacy Policy：https://sites.google.com/view/antiquevalueprivacypolicy/%E9%A6%96%E9%A1%B5
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
Zustand
Supabase
React Navigation
@expo/camera
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.
