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
ToneStencil - Stencil Maker
Turn photos into bold printable stencil art in seconds.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
1 ratings · Below Average
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/
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 ToneStencil - Stencil Maker: map the core Graphics & Design 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
Provide advanced editing tools and customization features.
Assumption to check: Limited customization options for templates
Validate with people who use this workflow before building.
Hypothesis 2
Implement folders or tagging for better palette management.
Assumption to check: Poor organization for palettes
Validate with people who use this workflow before building.
Hypothesis 3
Enable users to share palettes and templates easily.
Assumption to check: Lack of sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to work offline with local storage capabilities.
Assumption to check: No offline access
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
Turn photos into bold printable stencil art in seconds. ToneStencil transforms photos into printable stencil artwork, halftone posters and street-art style designs ready for printing, cutting, spray painting and large-scale creative projects. Create bold stencil graphics from your photos with a simple workflow designed for artists, mural painters, makers and hobbyists. Import a photo, refine the artwork using live controls and instantly generate striking stencil art ready for printing. Export tiled multi-page PDFs for murals, posters, stencil cutting and large-format artwork. ToneStencil includes two export modes: Print Mode Create full solid-black artwork for posters, print layouts, references and graphic art projects. Cut Mode Designed specifically for stencil making. Hatch lines reduce ink usage while clearly showing which areas should be cut out when creating physical stencils. Features: • Turn photos into printable stencil artwork • Create bold halftone poster effects • Export tiled multi-page PDF templates • Print large artwork across multiple pages • Live controls for threshold, detail, smoothness, line weight and angle • Works with colour and black-and-white photos • Print Mode for solid artwork • Cut Mode with hatch lines for stencil cutting • Built-in overlap for easier stencil alignment • A4 and Letter paper support • Multi-page assembly guides • Fast native iPhone workflow Perfect for: • Spray paint stencils • Murals • Street-art posters • Paste-ups • Canvas transfers • Installation art • Large-scale portrait artwork Privacy: Your images stay private. ToneStencil does not store, upload or share your images. Everything is processed locally on your device.
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
react-navigation
@react-native-async-storage/async-storage
react-native-color-picker
Zustand
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.
