App Overview

Invoice Maker for Contractors icon

Invoice Maker for Contractors

Supernova Ltd. · Finance

For contractors, freelancers, owner-operators, creatives, and other small business owners.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.8
220 ratings · Top 5%

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

Make this idea yours

A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

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Combine features and design from your favorite apps.

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What's included16 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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
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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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

Allow users to fully customize templates with their branding.

Assumption to check: Limited customization for invoice templates

Validate with people who use this workflow before building.

Hypothesis 2

Implement a feature for setting up recurring invoices.

Assumption to check: No recurring invoice functionality

Validate with people who use this workflow before building.

Hypothesis 3

Add a feature for saving frequently used items for quick access.

Assumption to check: Manual entry for items can be tedious

Validate with people who use this workflow before building.

Hypothesis 4

Provide analytics on invoicing trends and payment statuses.

Assumption to check: Inadequate reporting or analytics

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

For contractors, freelancers, owner-operators, creatives, and other small business owners. The world's simplest way to invoice customers from your phone. Save time, stay organized and look professional. Invoice Maker makes it easy to create and send invoices, helping you stay on top of unpaid balances and look professional to your clients. Give it a try and see how much easier managing your finances can be! With Invoice Maker, you can: - Create and send invoices in seconds - Send invoices and estimates via email, messengers, or your preferred method - Keep track of outstanding payments - Store all your client details in one place Here's what you should know about auto-renewing subscriptions: – If you choose to purchase a weekly, monthly or annual subscription you will have an unlimited access to all features. The prices may vary per country and are subject to change with a notice. Prices are clearly displayed in the app. – All subscriptions renew automatically unless you cancel at least 24 hours before the end of the current subscription period without any limitations. – Auto-renewal can be canceled at any time by going to your settings in the Apple Store after the purchase. Privacy policy: https://fatura-ed0d9.web.app/privacy.html Terms and conditions: https://fatura-ed0d9.web.app/terms.html

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
Zustand
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Axios
React Navigation
BUILD KIT DIFFICULTY
Starter

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.