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
AI Salary Budget Planner PRO
Payday Planner helps you decide where every paycheck goes before you spend it
$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.
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A product spec, screen plans, and build steps for your coding agent.
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What's included
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Payday Planner helps you decide where every paycheck goes before you spend it. Instead of tracking money after it is gone, you build a simple plan for each payday, so your bills, savings, and goals are covered the moment you get paid. WHY YOU WILL LOVE IT - Plan every paycheck in minutes, not hours - See exactly how much is left to spend after bills and savings - Reach your savings goals faster with clear monthly targets - Understand your whole year at a glance with a simple money heatmap - Works for weekly, biweekly, and monthly pay SMART AI THAT DOES THE WORK - Type what you spent in plain language and let AI file it for you - Get instant AI suggestions to rebalance a tight month - See an AI health score for your plan and how to improve it - Plan big purchases and installments without breaking your budget BUILT FOR REAL LIFE - Set money aside for rent, bills, and subscriptions first - Create goals for an emergency fund, a trip, or anything you want - Adjust any month when life changes - Choose your currency and number format PRIVATE AND AD FREE BY DESIGN - No ads, ever - No account or sign up required - Your financial data stays on your device - We respect your privacy and never sell your data QUALITY YOU CAN FEEL - Fast, clean, and thoughtfully designed - Simple enough to use every single payday - Regular updates and responsive support Payday Planner is a planning tool, not a bank, and it never connects to your accounts. Download today and give every paycheck a job before it lands. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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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.
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
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
