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
Leap Card #1
Leap Card Viewer is an unofficial Leap Card app for checking your Leapcard balance and journey history
$2.99
PRICE
$2.99
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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What's included16 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 Leap Card #1: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Leap Card Viewer is an unofficial Leap Card app for checking your Leapcard balance and journey history. You can easily check your card balance using Augmented Reality. Features: - check your leap card balance. - receive notifications for low balance. - multiple leap cards support - journey history - check your leap card balance, map, Luas red and green line by Augmented Reality ( only to Dublin for now ) NOTES: - This app you cannot top-up using the app and collect your Top Up and/or Travel Credit on Luas or DART and Commuter Rail at any Gate/Validator/Ticket Machine. If you wish to collect your Top Up and NOT travel you should use the Ticket Machine so you're not charged for a journey. - All the data comes from the official Leap Card service, so any delay which you might have is regarding the Leap Card servers. - When you use Travel Credit to pay for two or more journeys within 90 minutes of each other on Dublin Bus, Go-Ahead Ireland, Luas or DART/ Commuter Rail*, an automatic discount will apply to the second and subsequent fares. Privacy & Security notes: - We are not storing any user's data, all your data is encrypted and stored ONLY on your device! Contact us: [email protected]
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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 a unified view that easily aggregates information across all travel cards.
Assumption to check: Users often find it difficult to manage multiple travel cards efficiently.
Validate with people who use this workflow before building.
Hypothesis 2
Provide detailed transaction logs with filters for better user insights.
Assumption to check: Many travel apps lack transparency in transaction histories.
Validate with people who use this workflow before building.
Hypothesis 3
Streamline onboarding with a guided tutorial and quick setup.
Assumption to check: Onboarding processes can be lengthy and confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their profiles and notifications for a more tailored experience.
Assumption to check: Limited personalization options for users.
Validate with people who use this workflow before building.
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 Navigation
Supabase
Axios
React Native Reanimated
Expo
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.
