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
TS-GPS-A
TS-GPS-A stands for Tactical Satellite Global Positioning System Application.
$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'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 TS-GPS-A: 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 a reliable traffic overlay feature that shows current conditions.
Assumption to check: Navigation apps can struggle with real-time traffic updates.
Validate with people who use this workflow before building.
Hypothesis 2
Design a cleaner, more user-friendly map interface.
Assumption to check: Users often find map interfaces cluttered.
Validate with people who use this workflow before building.
Hypothesis 3
Offer robust offline maps and navigation features.
Assumption to check: Limited offline capabilities.
Validate with people who use this workflow before building.
Hypothesis 4
Ensure clear TTS voice navigation with various voice options.
Assumption to check: Voice navigation can be unclear or non-existent.
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
TS-GPS-A stands for Tactical Satellite Global Positioning System Application. The application is an iOS based application that was designed & developed by a team of U.S. Military Veterans & Supporters. The interactive features of the application provide a military style interface to its users - "civilian data with a tactical interface." Full screen features and clear buttons to maximize view of the map. Data displayed includes local satellite view, altitude, speed, date, time, latitude, longitude, and local physical address. The design of the application allows the user to utilize the full screen of their device and auto-tracks their postion and movement. This application is a novelty type of application and should only be used as such. SAFETY WARNING: Do not attempt to use this application while driving, walking or operating any machinery. Failure to pay full attention to the operation of your vehicle, machinery or while walking could result in death, serious injury or property damage. By purchasing and using this application, you assume total responsibility and risk for using the application.
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
Supabase
react-navigation
axios
@react-native-maps
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.
