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.
Stone’s Throw is a private, map-first home for every place worth remembering
$1.49
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Stone's Throw: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Affiliate link: CloneChart may earn a commission at no extra cost
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Stone’s Throw is a private, map-first home for every place worth remembering. Save restaurants, shops, landmarks, trip ideas, and hidden gems; organize them into collections; and turn a group of stops into your next route. SAVE PLACES YOUR WAY • Share a place directly from Google Maps or Apple Maps • Paste a maps link • Add a place manually • Import Google My Maps KML and KMZ exports ORGANIZE AND EXPLORE • See saved places on an interactive map • Group places into collections • Add favorites, tags, notes, and links • Find saved places near your current location • Search across names, addresses, notes, websites, and tags PLAN THE NEXT OUTING • Select stops in route order • Start from your location or return to your first stop • Send the route to Google Maps • Open individual directions in Google Maps or Apple Maps SHARE WITHOUT AN ACCOUNT Create a temporary collection link for friends. Shared links expire after seven days, and recipients can preview the collection before importing it. PRIVATE BY DEFAULT Your saved places, collections, preferences, and visit information stay on your device unless you explicitly create a share link. Stone’s Throw does not require an account and does not use your location for advertising. Google Maps Platform is used to display maps. Google and Apple Maps remain responsible for route calculation and directions in their respective apps.
Written user reviews are not shown here. Check current App Store reviews >
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
Assumption to check: Limited user reviews can lead to lack of trust.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in finding suitable destinations without filters.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No in-app messaging for user-host communication.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Users may forget saved destinations.
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.