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
Ace Budget 3
Ace Budget 3 is an easy to use personal finance application to help you track your spending and keep to a budget
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
335 ratings · Top 30%
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 Ace Budget 3: 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
Allow users to create custom categories and set flexible budget limits.
Assumption to check: Limited customization options for budgets and categories.
Validate with people who use this workflow before building.
Hypothesis 2
Implement automatic transaction categorization and bank linking.
Assumption to check: Manual entry of transactions can be tedious.
Validate with people who use this workflow before building.
Hypothesis 3
Enhance reports section with more visual representations of spending habits.
Assumption to check: Lacks visual analytics for spending trends.
Validate with people who use this workflow before building.
Hypothesis 4
Improve onboarding process and provide tooltips for first-time users.
Assumption to check: Confusing navigation for new users.
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
Ace Budget 3 is an easy to use personal finance application to help you track your spending and keep to a budget. You can create daily, weekly, monthly, semimonthly, quarterly, and yearly budgets. You will be able to schedule recurring transactions, set reminders, view graphs, compare historical data, and much more. Every feature of Ace Budget 3 is designed to be quick, clean, intuitive, and easy to use. FEATURES * Face ID and Touch ID Support - Use Face ID or Touch ID to authenticate and launch the app quicker and more conveniently. * Sync Data via iCloud - Sync your data across iPhone, iPad, and iPod Touch devices. * Universal Binary - Designed for iPhone, iPod Touch, and iPad devices. No need to buy separate apps for each device. * Charts and Reports - See your monthly income and expenses through charts and reports. * Photo Receipts - Capture and store photo receipt as part of a transaction. * AirPrint Support - Print reports directly from your iPhone or iPad to any AirPrint-enabled printer. * Multiple Budget Cycles - Create daily, weekly, biweekly, semimonthly, monthly, quarterly, or yearly budget cycles. * Transaction Reminder - Set reminders for scheduled transactions to warn you when expenses are due. * Transactions Scheduling - Schedule recurring transactions based on the start date and frequency you choose. * Quick Entry List - Create a repeating transaction list for quick selection instead of retyping details. * Smart Autocomplete - As you type, a list will show the previously entered descriptions for you to select from to save re-typing. * Search - Quickly search for transactions and edit from the same screen. * Budget History - At the end each cycle, all information for a budget category is archived and can be easily viewed for comparative purposes. * Transfer - Move funds from one budget category to another in a single operation. * Export Capability - Export budget data in CSV or HTML format for external viewing. * Customization Settings & Themes - Configurable settings and themes to customize the application based on your preferences. * Budget Delete Lock - Prevents accidental deletion of all the transactions under a budget category. * Customizable Sorting - Sort transactions based on your preference either ASC or DESC order by date. * Backup / Restore - You can backup and restore via Dropbox, email, or iTunes file sharing. * Clean, Intuitive User Interface * FREE Ace Budget 3 Lite Version - Please download the Ace Budget 3 Lite version to try before you buy. * If you like this app, then please support us with a positive rating. Thank you!
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
react-hook-form
react-native-chart-kit
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.
