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
Singapore GP
Rev up your #F1NightRace weekend with the Official Singapore GP App
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 2.4
36 ratings · Below Average
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 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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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 Singapore GP: map the core Sports 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
Rev up your #F1NightRace weekend with the Official Singapore GP App Download the Official Singapore GP App for your ultimate Singapore Grand Prix companion. • RACE WEEKEND ESSENTIALS Prepare for a thrilling weekend with tips and tricks from our informative event guide and plan your journey with our transport guide. • INTERACTIVE WAYFINDING CIRCUIT MAP Locate the nearest food stalls around you, search for merchandise booths, and find out which gate is closest to where you are. • PERSONALIZED EVENT SCHEDULE AND PUSH NOTIFICATIONS Browse and add events to your personal schedule and get reminders before it happens. Stay on track with important information and timely reminders customized for your ticket over the race weekend. • EXCLUSIVE PRIZES FOR THE ULTIMATE FAN Take part in an app-exclusive contest and win money-can't-buy experiences. Stay in touch with us: Website: https://www.singaporegp.sg Facebook: https://www.facebook.com/F1NightRace Twitter: https://www.twitter.com/f1nightrace Instagram: https://www.instagram.com/f1nightrace YouTube: https://www.youtube.com/user/singaporegrandprix TikTok: https://www.tiktok.com/@f1nightrace
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.
Hypothesis 1
Implement push notifications for race reminders and news alerts.
Assumption to check: Limited user engagement features such as notifications
Validate with people who use this workflow before building.
Hypothesis 2
Conduct user testing to identify and improve on key pain points.
Assumption to check: Poor user ratings, indicating usability issues
Validate with people who use this workflow before building.
Hypothesis 3
Add social media sharing capabilities for events and news.
Assumption to check: Lack of social sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Introduce filters and sorting options to enhance content discoverability.
Assumption to check: Inadequate filtering options for schedules and news
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 Native
Expo
Supabase
react-navigation
react-native-calendars
@supabase/supabase-js
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.
