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
Payee: Watch Your Salary Grow
Your salary doesn't arrive once a month — you earn it every second
$1.99
PRICE
$1.99
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Payee: Watch Your Salary Grow: 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
Implement automatic salary growth tracking through bank account integration.
Assumption to check: Users often find it difficult to manually track salary changes.
Validate with people who use this workflow before building.
Hypothesis 2
Provide interactive charts and graphs for better user engagement.
Assumption to check: Many finance apps lack engaging visualizations.
Validate with people who use this workflow before building.
Hypothesis 3
Introduce reminders and notifications for salary updates.
Assumption to check: Users may forget to log their salary updates.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize categories and visual themes.
Assumption to check: Limited customization options in existing apps.
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
Your salary doesn't arrive once a month — you earn it every second. Payee makes that visible. Watch a calm, live counter tick your income upward in real time: on your Home Screen, Lock Screen, Dynamic Island, and Apple Watch. WATCH YOUR MONEY GROW A gentle, always-on earnings ticker that updates every second and turns an abstract paycheck into something you can actually see. TRACK ANY SESSION Start a session for a meeting or a focus block and see exactly what it earns — live on the Dynamic Island and Lock Screen. Stop it and it's saved to your history. WIDGETS EVERYWHERE • Home Screen widgets (small & medium) • Lock Screen widgets, inline and rectangular • Live Activity + Dynamic Island for running sessions • A full Apple Watch app MADE YOUR WAY • Hourly, monthly, or yearly pay, in any currency • Set your own workdays and hours • Optional take-home % to see net instead of gross • Privacy mode to blur numbers in public PRIVATE BY DESIGN Everything stays on your device. No account, no cloud, no tracking, no analytics — ever. PAID ONCE. YOURS FOREVER. No subscription, no paywall, no ads. There's an optional tip jar, but it's never required. Download Payee and watch your salary tick up.
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
Victory Native
React Navigation
React Hook Form
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.
