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
Night compass: Explore
night compass – find nearby bars & more
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
16 ratings · Top 5%
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 Night compass: Explore: map the core Navigation 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 improved calibration features for the compass.
Assumption to check: Users often report issues with accuracy in low-light conditions.
Validate with people who use this workflow before building.
Hypothesis 2
Offer offline map downloads for users.
Assumption to check: Limited offline functionality for maps.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the upgrade flow with clearer prompts.
Assumption to check: In-app purchase process can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Add advanced routing features and integration with real-time traffic.
Assumption to check: Some users find the app too simplistic for advanced navigation needs.
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
night compass – find nearby bars & more night compass makes going out simple. instantly find the nearest bar, liquor store, pizza place, or casino with a live compass that points exactly where to go. no searching. no typing. just open the app and follow the arrow. perfect for late nights, weekends, pregames, travel, and exploring new cities with friends. how it works choose a category, open the compass, and start moving. night compass automatically points you toward the closest location, so you spend less time deciding and more time going. key features • real-time compass pointing to nearby bars, liquor stores, pizza places, or casinos • home screen widgets for instant access • live distance and direction updates • switch categories with one tap • clean night-mode interface designed for going out • works anywhere using apple maps • no accounts, no setup, no clutter perfect for • college students • travelers and tourists • late-night food runs • pregames and group nights out • exploring new cities night compass is fast, simple, and easy to use. open it once — and it quickly becomes the app everyone asks about.
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.
SUGGESTED BUILD STACK
React Native
Expo
react-navigation
expo-location
react-native-maps
@react-native-community/geolocation
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.
