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
My Invoices
Simple invoicing
$0.49
PRICE
$0.49
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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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A product spec, screen plans, and build steps for your coding agent.
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What's included15 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 My Invoices: map the core Business 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 notifications for upcoming due dates and overdue invoices.
Assumption to check: Users often struggle with invoice tracking and reminders.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize invoice layouts and add business logos.
Assumption to check: Lack of customization options for invoice templates.
Validate with people who use this workflow before building.
Hypothesis 3
Enable detailed client profiles with notes and history.
Assumption to check: Limited client management features.
Validate with people who use this workflow before building.
Hypothesis 4
Include options to export invoices as PDF or CSV.
Assumption to check: No export functionality for invoices.
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
Simple invoicing. Professional results. This app makes it easy to create, send, and manage invoices from your iPhone or iPad — whether you’re a freelancer, contractor, or small business. Create invoices, quotes, estimates, and credit notes in seconds. Track their status and stay on top of what’s been sent, paid, or overdue — all in one place. Key Features • Create invoices, quotes, estimates, and credit notes • Statuses: Open, Sent, Paid, Partially Paid, Overdue, Cancelled • Customisable invoice details (tax, discounts, shipping, currency, notes) • Multiple shipping addresses • PDF generation for sharing or printing • Designed for speed, clarity, and ease of use • Works seamlessly on iPhone and iPad Whether you’re billing a one-off job or running ongoing work, this app keeps your invoicing organised and professional — without unnecessary complexity. No clutter. No learning curve. Just invoicing that works.
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
Supabase
React Navigation
React Hook Form
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.
