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
GeoID
* Note : This app uses built-in magnetometer, so iPod Touch does not provides direction of structure/device.
$5.99
PRICE
$5.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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 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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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 GeoID: map the core Utilities 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
Add more map features like layers, markers, and custom location saving.
Assumption to check: Limited features and customization options
Validate with people who use this workflow before building.
Hypothesis 2
Optimize location fetching with caching and offline capabilities.
Assumption to check: Slow location fetching in some areas
Validate with people who use this workflow before building.
Hypothesis 3
Implement export functionality to share or save coordinates in different formats.
Assumption to check: No export options for coordinates
Validate with people who use this workflow before building.
Hypothesis 4
Introduce social sharing options or user-generated content related to locations.
Assumption to check: Lack of user engagement features
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
* Note : This app uses built-in magnetometer, so iPod Touch does not provides direction of structure/device. GeoID is a professional tool for measuring and analyzing geological structures. This application includes geological compass, stereographic projection, instability analysis and wireless data sharing. • Features - The clinometer works with all attitude of the device and enables user to measure any structure - A stability indicator in the clinometer maximizes its accuracy - Provides many options including notation type, measurement interval, avarage calculation, projection type, etc. - Can input data manually using several input methods - Immediate projection and analysis of selected project - Provides stereonet-based slope stability analysis - Supports zooming while plotting/analyzing - Wireless data transferring via Bluetooth and E-mail - Generates analysis reports with stereonet images and sends them by e-mail - Supports all iOS devices Developed by Engineering Geology & GIS Lab., Dept. of Energy Systems Engineering, Seoul National University, South Korea. Prof. Hyeong Dong Park wishes to express thanks to Prof. Edward Keller and other faculty members of the Earth Sciences Department of University of California Santa Barbara for the useful suggestions and discussions on the improvement of GeoID during Prof. Park's academic visit from 2011-2013.
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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.
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BUILD KIT DIFFICULTY
Advanced
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.
