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.
Invoice Maker for Contractors is an invoice generator, estimate maker, and invoicing app for contractors, freelancers, self-employed professionals, consultants, creatives, and small business owners on iPhone and iPad.
Free · In-app purchases
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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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 Invoice Maker for Contractors: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Invoice Maker for Contractors is an invoice generator, estimate maker, and invoicing app for contractors, freelancers, self-employed professionals, consultants, creatives, and small business owners on iPhone and iPad. Create professional invoices and estimates in seconds, manage clients and reusable items, track unpaid balances, generate polished invoice PDFs, and share or print documents directly from your Apple devices. SIMPLE INVOICING FOR EVERYDAY BUSINESS Invoice Maker helps you create an invoice without the complexity of traditional accounting software. It is built for independent professionals and small businesses that need a fast way to bill clients, prepare estimates, and keep invoicing organized. Use Invoice Maker to: • Create professional invoices • Build and send estimates • Manage clients, products, services, and invoice items • Track unpaid and outstanding invoices • Generate professional PDF invoices • Share invoices and estimates • Print invoices from iPhone or iPad • Keep invoicing data organized across supported Apple devices FAST INVOICE GENERATOR Choose a client, add products, services, work, or other billable items, review the total, and create a customer-ready invoice. Improved client and item workflows reduce repetitive steps, making Invoice Maker useful as a contractor invoice app, freelancer invoice generator, invoice builder, service invoice maker, and small business invoicing tool. CREATE ESTIMATES BEFORE WORK STARTS Prepare an estimate when a client needs pricing before approving a job or service. Add the relevant items or work, review the details, and share the finished estimate using your preferred method. REDESIGNED FOR IPHONE AND IPAD Invoice Maker has been redesigned from the ground up with a new adaptive workspace for iPhone and iPad. On iPhone, create and review invoices quickly away from a desk. On iPad, use the larger workspace to review clients, items, totals, and documents with more room. Creating, reviewing, sharing, and printing invoices is now faster and easier across Apple devices. PRIVATE ICLOUD SYNC On iOS 17 and later, Invoice Maker can privately sync your business information, clients, items, and invoices through iCloud. Keep invoicing records available across supported Apple devices so you can continue working between iPhone and iPad without manually transferring business data. PROFESSIONAL INVOICE PDFS Turn invoice details into clean, client-ready PDF documents. Review the invoice before sending, then share it through email, messaging apps, or your preferred method. Refined PDF sharing and printing help contractors, freelancers, and small businesses present professional billing documents to customers. CLIENTS, ITEMS, AND BUSINESS DETAILS Save client information, reusable products and services, business details, and invoice items so you do not have to enter the same information every time you create a new invoice or estimate. TRACK UNPAID INVOICES Keep invoices organized and review outstanding balances that still need attention. Invoice Maker gives independent professionals and small business owners a straightforward way to stay on top of billing. ACCESSIBLE ON IOS Invoice Maker supports Dark Mode, Larger Text, VoiceOver. WHO IS INVOICE MAKER FOR? Invoice Maker is designed for: • Contractors and construction professionals • Freelancers and independent professionals • Self-employed workers and owner-operators • Consultants and service businesses • Creatives and designers • Small business owners If you are looking for an invoice generator for iPhone or iPad, contractor invoice app, freelancer invoice maker, invoice builder, estimate maker, small business invoice software, PDF invoice creator, or a simple way to create invoices and track unpaid balances, Invoice Maker provides a focused workflow for everyday business. Create invoices. Send estimates. Manage clients. Generate PDFs. Track outstanding balances.
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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 customization for invoice templates
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No recurring invoice functionality
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Manual entry for items can be tedious
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate reporting or analytics
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.