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
Profit Price Calculator
Price your work accurately to make more money
$3.99 · In-app purchases
PRICE
$3.99
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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included14 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 Profit Price Calculator: 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
Incorporate user accounts and sharing options to enhance engagement.
Assumption to check: Lack of user engagement features like user accounts or social sharing
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to save custom pricing settings and calculation methods.
Assumption to check: Limited customization options for calculations
Validate with people who use this workflow before building.
Hypothesis 3
Include user feedback on the accuracy of calculations or suggestions for improvement.
Assumption to check: No feedback mechanism for calculations
Validate with people who use this workflow before building.
Hypothesis 4
Provide users with insights and tips on pricing strategies within the app.
Assumption to check: No educational resources or tips
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
Price your work accurately to make more money. Profit Pricing is made for Etsy and eBay sellers making their own products. If that is you, then this app is made for you. Maker, Crafter, or Artisan business that makes products? Then setting the right price to make enough Gross Profit (GP) is essential. This app is for you and will save you time and help you make more profit by taking the stress out of pricing. Selling on popular platforms like Etsy, eBay or Amazon makes knowing your true Gross Profit even harder. Stop struggling with spreadsheets and calculators, this app was written to make your life easier, save you time and improve your GP. Profit Price Calculator is an easy way to instantly calculate GP, designed specifically for the needs of Makers, Crafters, and Artisans of all types, even chefs and restaurants can use this to combine the costs of materials and time taken to produce the product or dish. Use Profit Price Calculator to calculate the selling price, based on a the GP you wish to make. You enter the cost of materials, the hourly rate for the people or person making the item and if it is being delivered; the cost of delivery. Finally specify how long it takes to produce the item in man hours. If you are selling your item on any of the popular marketplaces then you are able to turn this option on in the settings. You can then configure the app to store the fees you are charged for the categories you sell in. To keep things simple, you will not see anything todo with Marketplaces until you turn this option on in the settings panel. Profit Price Calculator will instantly show you the right selling price, how much is being earned in wages and the amount of profit you will make. If you have enabled Marketplace's then they fee you will be charged is also broken out for you. 100% ad-free. One time, low, purchase fee gets you the full product and future upgrades. Absolutely no upsell, or annoying in-app purchases for the features you really need! Just fair transparent pricing; a great value app for small business professionals.
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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
Zustand
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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.
