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
PingPair
A messenger - reduced to the essentials
$0.99 · In-app purchases
PRICE
$0.99
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 included15 files
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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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 PingPair: map the core Social Networking 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 push notifications for interactions.
Assumption to check: Lack of user engagement features like notifications.
Validate with people who use this workflow before building.
Hypothesis 2
Add search and filter functionality.
Assumption to check: Limited discovery options for users.
Validate with people who use this workflow before building.
Hypothesis 3
Integrate real-time messaging using WebSocket.
Assumption to check: No real-time messaging capabilities.
Validate with people who use this workflow before building.
Hypothesis 4
Offer premium features through subscriptions.
Assumption to check: Limited monetization 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
A messenger - reduced to the essentials. No account, no history, no stored messages. PingPair is the simplest way to send a quick message to friends and family. Set your default message and send it with just one tap, or choose from your favorite emojis. Of course, you can also type any text at any time. Here's how it works: Scan a QR code or enter a 6-digit code to add a contact and establish a direct connection between devices. Tap on the contact and send a ping. Done. Your privacy comes first: ◆ Direct connection: No account, no email, no password ◆ Messages are delivered instantly and never stored or archived ◆ No ads, no trackers, no analysis of your data ◆ All data stays on your devices Features: ◆ Send pings with a single tap ◆ Set a favorite for even faster access ◆ Use Siri or the Action Button to send a ping to your favorite ◆ Protect the app with Face ID or Touch ID ◆ Enable screenshot protection for maximum privacy ◆ Sync contacts automatically across your devices ◆ Use the Apple Watch app to send pings right from your wrist ◆ Organize contacts in groups ◆ Block unwanted contacts ◆ Switch between different quick emojis Sometimes words aren't needed. A ping says: "Thinking of you", "I'm here" or "Coming soon?". Perfect for couples, families and close friends. PingPair was designed to reduce communication to what matters most. No distractions, no complexity - just real connection.
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
Expert
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.
