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
Paycheck Pet
Paycheck Pet is a simple budgeting app for people who want to know one thing: how much money do I really have left until my next paycheck?
$1.99 · In-app purchases
PRICE
$1.99
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 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.
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 Paycheck Pet: 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
Incorporate fun animations and pet avatars to make budgeting more enjoyable.
Assumption to check: Lack of engaging visuals can make budgeting feel tedious.
Validate with people who use this workflow before building.
Hypothesis 2
Add reminders and notifications for budget updates.
Assumption to check: Users may forget to update budgets regularly.
Validate with people who use this workflow before building.
Hypothesis 3
Implement charts and analytics for spending insights.
Assumption to check: Difficulty in tracking spending trends over time.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create and customize their budget categories and pets.
Assumption to check: Limited customization of budget categories.
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
Paycheck Pet is a simple budgeting app for people who want to know one thing: how much money do I really have left until my next paycheck? Instead of linking your bank account or forcing you into a complicated finance dashboard, Paycheck Pet keeps things manual, calm, and cute. Enter your income, pay schedule, bills, spending, and extra money, then watch your little paycheck pet react as your budget changes. Use Paycheck Pet to: • Track your paycheck plan • Add bills, purchases, and extra income • See what you have left • Check your upcoming paycheck timing • Keep budgeting simple without accounts or bank syncing Paycheck Pet is made for everyday people who want a softer, more honest way to stay aware of money without shame, clutter, or subscriptions. No ads. No subscriptions. Just a tiny pet for your paycheck.
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
Zustand
React Native Reanimated
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.
