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
GeoPulse: GPS Visualizer Pro
Experience GPS like never before
$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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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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 GeoPulse: GPS Visualizer Pro: 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 advanced location services with fallback options.
Assumption to check: Inaccurate GPS tracking in urban areas
Validate with people who use this workflow before building.
Hypothesis 2
Provide full offline maps and navigation capabilities.
Assumption to check: Limited offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Create a more transparent and accessible subscription interface.
Assumption to check: Lack of user-friendly subscription management
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize map layers and data visualization.
Assumption to check: Poor customization options for map views
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
Experience GPS like never before. GeoPulse: GPS Visualizer Pro transforms raw location data into interactive visual analytics for athletes, drivers, pilots, and explorers. Visualize every movement in real time — speed, altitude, accuracy, distance, and course — with smooth live charts and map overlays powered by Apple Maps. Instant GPS Insight: Watch your live position, speed, and direction update with second-by-second accuracy. Interactive Map View: Auto-centered Apple Map displays your path, ideal for navigation or performance review. Professional-Grade Metrics: Track speed, pace, distance, altitude variance, and horizontal accuracy. Multi-Mode Engine: Switch between Fitness, Automotive, Aviation, and Marine profiles for adaptive data precision. Export Anywhere: Save your sessions as GPX or CSV for import into Strava, Google Earth, or analytics tools. Detailed History: Review your latest 100 readings with visualized graphs for speed and altitude trends. Offline Support: Works without network once GPS signal is active. Perfect for: Athletes optimizing performance, drivers monitoring routes, drone pilots testing stability, or developers analyzing GPS accuracy. Unique Value Unlike typical GPS trackers, GeoPulse combines professional diagnostics, real-time analytics, and custom export options in a sleek, native iOS interface. It’s designed for precision testing, visualization, and performance tracking, not just movement logging. Other GPS apps only show paths — GeoPulse shows the science behind them. True native SwiftUI + Core Location experience for instant responsiveness. Graphical visualization engine that plots live speed and altitude fluctuations. Designed for developers, professionals, and athletes alike. No ads. No unnecessary permissions. 100% on-device. GeoPulse provides a fusion of engineering accuracy and consumer simplicity. It appeals across markets: athletes, pilots, drivers, researchers, travelers, and app testers — each needing precise, visual, exportable GPS data. Its offline reliability, professional polish, and export capability position it among the most advanced GPS utilities ever released for iOS.
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
react-native-maps
@react-native-community/geolocation
zustand
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.
