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
BizExpense
We will release a fix for the screen rotation issue on the iPad shortly
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.0
5 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 BizExpense: 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
Enhance reporting with more visualizations and insights
Assumption to check: Limited reporting features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement automatic transaction categorization and import from bank accounts
Assumption to check: Manual entry can be tedious
Validate with people who use this workflow before building.
Hypothesis 3
Revamp UI with modern design patterns and smoother transitions
Assumption to check: User interface feels outdated
Validate with people who use this workflow before building.
Hypothesis 4
Add features for tracking and managing recurring expenses with reminders
Assumption to check: Limited support for recurring expenses
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
We will release a fix for the screen rotation issue on the iPad shortly. Please fully terminate and re-start the app in portrait mode for now. Thank you for your patience. A lite version of BizExpense is available under the free applications category. Give it a try today! *** BizExpense is designed to help you track and report your business expenses. BizExpense is right for you if: - you travel on business and get reimbursed by your employer - you are a consultant taking up travel and get paid by your clients - you incur project related expenses and get reimbursed by your customers BizExpense makes it easy for you to prepare and submit your expense reports. FEATURES - Create/edit/delete/browse expense categories and subcategories. Though BizExpense comes with predefined set of categories/subcategories, you have complete freedom to redefine them - Create/edit/delete/browse paying entities: Employer/Client/Customer - Create/edit/delete/browse expense groupings: Trip/Project - Create/edit/delete/browse expense entries - Attach photo images of receipts - Submit expense reports by email, or export a HTML/CSV file via Wifi with all receipts (in a zip file) - Mileage reporting - Currency rate conversion for international travel - View pie/bar chart of the expense break-down at the Trip/Project level - Backup/Restore complete application data, including all receipts - Password protection - BizExpense respects the locale/region setting on your device and shows date and currency symbols appropriate for your region - Ability to override the default currency at the application and trip level Visit http://www.anishu.com to see more screenshots. Please contact us at [email protected] for any questions and feedback.
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-native-paper
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.
