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
PayPal Business
The PayPal business app is the best app available to send invoices, track sales, and manage your money for merchants with businesses of all sizes
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.2
29,384 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 PayPal Business: map the core Business 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 customizable tags for transactions.
Assumption to check: Confusing transaction categorization
Validate with people who use this workflow before building.
Hypothesis 2
Add more detailed and customizable reports.
Assumption to check: Limited reporting features
Validate with people who use this workflow before building.
Hypothesis 3
Enhance navigation with a clearer tab structure.
Assumption to check: Difficult navigation structure
Validate with people who use this workflow before building.
Hypothesis 4
Optimize loading times and implement lazy loading.
Assumption to check: Slow app performance with large transaction history
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
The PayPal business app is the best app available to send invoices, track sales, and manage your money for merchants with businesses of all sizes. This app takes on the role of business manager for you while you’re busy working on your business instead of in it. This is more than just an invoice creation app. With the PayPal Business app for iPhone, you can: •Make and send invoices quickly with an easy-to-use invoice maker •Manage your money and sales •Track online account activity •Transfer money •See monthly, quarterly and yearly sales trends at a glance •Access your customer info quickly SEND INVOICES AND GET PAID Create, send and manage your business invoices quickly from the PayPal Business app. PayPal’s invoice maker also makes it easy for small business owners and merchants to send payment reminders to customers directly from a mobile device to save you time from tracking down payments. Get paid in less time and with less headaches. MANAGE SALES AND ACCOUNT ACTIVITY See your daily sales, and view your business’ monthly, quarterly and yearly sales at a glance. No more guessing on how your sales are performing! Make smarter money management decisions with updated sales trend information exclusively for your business. TRANSFER MONEY Move money to your linked bank account, issue refunds, and send money with just a few taps. Save time and frustration by skipping the bank lines with this mobile money management app. Small business owners and merchants love this flexibility and feel like they have a finance manager in their pocket. ACCESS CUSTOMER INFORMATION View customer transactions, including processing and invoicing histories with the PayPal Business app. You can also check contact information and get in touch with your customers directly from your mobile device. It’s also easy to import your contacts too! The PayPal Business app offers small business owners and merchants a quick and simple way to make and send invoices, get paid, and manage your money right from your phone. Finally, a small business app that fits your lifestyle! Need to accept credit / debit cards on a mobile device? Try the PayPal Here mobile app! Just another example of how PayPal is caring about your business.
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.
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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.
