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
briefly Contact
Your business card
$1.99
PRICE
$1.99
No 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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Your business card. On your wrist. Make your introduction on iPhone, add your card to Apple Wallet, and show its QR from a paired Apple Watch. The person you meet scans with their phone to open your contact. They do not need briefly Contact. MAKE IT YOURS Choose from ten themes. Personalize the fonts, colors, layout, photo, optional business logo and words. Keep separate cards for different introductions. SHARE THE DETAILS THAT MATTER Add first and last names, your role, company, phone numbers, email, website and address. Choose the right contact labels. Preview your card as you edit. CHOOSE HOW TO SHARE Use an offline contact QR for your details without a photo. Or choose Share contact with photo to create an online card that includes your selected picture. Recipients can open or download the contact file and confirm saving it on their phone. Photo sharing needs an internet connection. READY IN WALLET A floating Add to Apple Wallet button keeps the next step in reach. Add the pass on iPhone and use Apple Wallet on a paired Apple Watch to show the QR. This is a Wallet pass, not a separate Watch app or NFC exchange. LOCAL BY DEFAULT Your working cards live on your device. Optional photo sharing stores an encrypted copy online until you remove its link. Anyone with the complete link can read it. Wallet signing temporarily processes the card details, artwork and full QR link. See About and the privacy policy for the full explanation. SPACE TO CREATE Built with the iOS 27.1 SDK, with adaptive layouts for iPhone Duo, iPhone and iPad. On a partly folded Duo, QR presentation stays on one panel. A few useful details: saved contacts do not update automatically. Reissue Wallet passes after changing their artwork or QR. The receiving phone controls photo presentation; the app cannot force an iOS Contact Poster. Creating cards does not require a briefly account. Make an introduction worth keeping.
Written user reviews are not shown here. Check current App Store reviews >
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.
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
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
