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
Yardly - Find Garage Sales
Yardly is the easiest way to find garage sales, estate sales, and yard sales near you.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
1,511 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 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 Yardly - Find Garage Sales: 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
Yardly is the easiest way to find garage sales, estate sales, and yard sales near you. Browse every sale on one map. Tap any pin to see exact hours, directions, and what's for sale. From vintage furniture and sports cards to baby gear and antiques! Why people use Yardly: • See every sale near you on a live map • Filter by what you're hunting i.e. kids, furniture, collectibles, tools, and more • Get exact start times and directions, so you arrive first • Discover estate sales for higher-end finds • Save your favorites and plan your weekend route Whether you're a weekend bargain hunter, a reseller, or just love the thrill of the find, Yardly puts every sale in your neighborhood at your fingertips. Stop driving in circles looking for handwritten signs. Open Yardly, find a sale, and go score the deal! Note that an in-app subscription is required to access the content and utilize our services! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Implement advanced filtering options for sale categories, distance, and dates.
Assumption to check: Difficulty in finding specific sales due to lack of filters
Validate with people who use this workflow before building.
Hypothesis 2
Add features like user reviews, ratings, and sharing options.
Assumption to check: Limited user engagement features
Validate with people who use this workflow before building.
Hypothesis 3
Implement push notifications for nearby sales based on user preferences.
Assumption to check: Poor notification system for new sales
Validate with people who use this workflow before building.
Hypothesis 4
Optimize map loading and data retrieval for better performance in less populated regions.
Assumption to check: Inconsistent map performance in rural areas
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
react-navigation
react-native-maps
axios
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.
