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
Maps Tools,GPS tracking,Speed
The application MapsTools supplies a set of tools working with MAPS
$0.99
PRICE
$0.99
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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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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Maps Tools,GPS tracking,Speed: 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
The application MapsTools supplies a set of tools working with MAPS 1) GPS Tracking Draws your travel on MAPS Records your travel Shows information about your travel - Max Speed - Average Speed, Current Speed - Distance - Elapsed time - Altitude, Altitude Difference, Rising Displays recorded trackings Switchs between metric and imperial units system 2) Distance between two locations and the azimuth to the second location - Select 2 locations on MAPS - The distance and the azimuth are displayed Usage example: to measure an house dimension and orientation 3) Azimuth and Distance to central cursor - Distance from your location to an other location - Azimuth line from your location to an other location - GPS coordinates other location - Acoustic aiming (a voice helps you to orient the device in the direction of the second location) - GPS Direction When your location changes, the distance and the azimuth (the cap) are updated It is possible to keep a cap (GPS direction, Left/Right arrows) 4) Azimuth line Sometimes, you'd like to know what you see far away - orient your device and touch the screen - a line is drawn on MAPS in the direction measured by the compass 5) Possibility to show the swiss Mountains. To reduce the number of mountains, a filter on the altitude may be applied. 6) Display GPS information and Compass - GPS coordinates - Speed - Altitude - Horizontal and Vertical accuracy - GPS direction - Compass, Compass accuracy 7) Possibility to correct the compass If you see a geographic point you know and you can find it on the map, you have the possibility to set a compass correction When the APP is not active (in background), the GPS is working only in the case the user has started the function GPS tracking WARNING: - Don't use the application to get your way in dangerous environment. This application don't replace a topographic map and a good compass. - Without GPS, some features are not fully functional - The reliability of the functions azimuth line and azimuth/distance depends of - The reliability of the compass - The GPS reliability - The right device orientation - The GPS increases the energy consumption - The Maps refreshing consumes internet data and energy
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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
Provide real-time visual indicators such as speed graphs during tracking.
Assumption to check: Limited user feedback during tracking (no visual indicators)
Validate with people who use this workflow before building.
Hypothesis 2
Implement sharing features to allow users to share their trips on social media.
Assumption to check: No social features or sharing options
Validate with people who use this workflow before building.
Hypothesis 3
Offer customizable tracking settings for different sports like running, cycling, etc.
Assumption to check: Lack of customization options for tracking
Validate with people who use this workflow before building.
Hypothesis 4
Enable offline map access and local trip saving.
Assumption to check: No offline capabilities
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
React Navigation
React Native Maps
Victory Native
Expo Location
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.
