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
Kapitech: Budget & Debt Payoff
Kapitech is the all-in-one budget planner, expense tracker, debt manager, and money assistant that makes personal finance effortless and private.
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
6 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
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 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 Kapitech: Budget & Debt Payoff: 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 transaction categorization and budget tracking.
Assumption to check: Users often struggle with manual budget tracking.
Validate with people who use this workflow before building.
Hypothesis 2
Provide clear visualizations of debt payoff progress.
Assumption to check: Debt management can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize budget categories and colors.
Assumption to check: Limited customization options for budgets.
Validate with people who use this workflow before building.
Hypothesis 4
Improve transparency regarding subscription benefits and trial periods.
Assumption to check: In-app purchases can be unclear.
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
Kapitech is the all-in-one budget planner, expense tracker, debt manager, and money assistant that makes personal finance effortless and private. No spreadsheets, no ads, and no subscriptions—just a single one-time purchase for instant clarity on where your money goes, how to make it grow, and how to strategically eliminate your debt. Why Kapitech?: Smart Expense Tracker – Log purchases in seconds. Powerful charts reveal exactly where you spend. Goal-Based Budgeting – Set weekly or monthly budgets for groceries, rent, shopping, and more. Debt Management – Track and visualize all your debts in one place. Compare payoff strategies and see exactly when you'll be debt-free. Savings Goals – Pick an amount and a deadline (vacation, car, emergency fund). Watch the progress ring fill up as you save. Premium Design – Elegant dark mode, haptic feedback, and custom icons and colors. Managing money has never looked this good. 100% Privacy – Your data stays on your device. No sign-up is required. Power Features: Unlimited custom categories Strategic debt payoff calculators (Avalanche vs. Snowball methods) Payment reminders and complete payment history Detailed amortization schedules and interest analysis CSV & PDF export for easy sharing with accountants or partners Face ID / Touch ID protection How It Works: Add your income, expenses, and debts to get a complete financial picture. Record transactions and payments on the go. Check the Dashboard for real-time insights on spending, saving, and debt reduction. Compare debt payoff strategies to find the fastest or most motivating path to freedom. Move leftover cash to your savings goals or extra debt payments and celebrate every milestone! Thousands of savvy users already rely on Kapitech to spend smarter, save faster, eliminate debt, and reach financial freedom—all without giving up lattes or lifestyle. Download Kapitech today with a single, one-time purchase and own your financial future. Terms & Conditions: https://www.kapitech.app/terms.html Privacy Policy: https://www.kapitech.app/privacy.html
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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
react-native-reanimated
@supabase/supabase-js
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.
