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
Moneta: Budget Tracker
Your balance is fine as long as you don't overspend
$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 Moneta: Budget Tracker: 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 importing from bank accounts.
Assumption to check: Users struggle with manual entry of transactions
Validate with people who use this workflow before building.
Hypothesis 2
Provide detailed budget analytics and alerts.
Assumption to check: Limited budget tracking capabilities
Validate with people who use this workflow before building.
Hypothesis 3
Add support for recurring expenses and income.
Assumption to check: No recurring transactions feature
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize categories and reports.
Assumption to check: Lack of customization options
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 balance is fine as long as you don't overspend. That's the whole idea behind Moneta. Set a budget. Log what you spend. Stay inside the lines. No bank syncs, no complex setup, no 20-minute onboarding. Just you, your envelopes, and a clear answer to "can I afford this right now?" WHY MONETA EXISTS Most budget apps try to do everything - link your bank, categorize transactions automatically, show you charts you'll never read. Moneta does less on purpose. It's built around one belief: if you set a spending limit and stick to it, your money takes care of itself. HOW IT WORKS Set your Monthly Allowance (your total income). Create Budget Plans for every category you spend on - rent, groceries, transport, subscriptions. Mark each one as Fixed (auto-deducted) or Variable (logged as you go). At the start of each month, create a Monthly Tracker. Moneta generates a live envelope for every Budget Plan, filled and ready. Log expenses. Watch your remaining balance update in real time. If an envelope hits zero - stop spending there. That's it. RECEIVABLES - TRACK WHAT YOU'RE OWED Lent money? Waiting on a reimbursement? Log it as a Receivable so nothing slips through the cracks. MONTHLY HISTORY Every month is saved. Look back anytime to spot patterns, see progress, and prove to yourself that the system works. YOUR DATA, YOUR RULES No account needed to get started. Your data stays on your device. Sign in to unlock cloud sync and keep your data across multiple devices. Export a backup anytime. Your finances stay private. THINGS YOU'LL LOVE - Clean, fast interface built for daily use - Fixed and Variable Budget Plans - Real-time envelope balance tracking - Quick expense logging with optional notes - Receivables for money owed to you - Dark mode - Customizable currency - Use without an account, or sign in for multi-device sync GETTING STARTED 1. Set your Monthly Allowance 2. Create Budget Plans for each spending category 3. Start a Monthly Tracker at the beginning of the month 4. Log expenses as you spend 5. Check the Dashboard - if your envelopes are green, you're good Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
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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.
