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
Michigan DNR Hunt Fish
Official licensing app of the Michigan Department of Natural Resources.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
176 ratings · Top 30%
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 included18 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 Michigan DNR Hunt Fish: 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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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 a more intuitive filtering system and easy access to regulations.
Assumption to check: Difficulty in navigating complex regulations
Validate with people who use this workflow before building.
Hypothesis 2
Include detailed species profiles with images and videos.
Assumption to check: Limited species information
Validate with people who use this workflow before building.
Hypothesis 3
Enhance profile settings to manage licenses and preferences more efficiently.
Assumption to check: Inadequate user profile management
Validate with people who use this workflow before building.
Hypothesis 4
Clarify subscription benefits and simplify the purchasing process.
Assumption to check: In-app purchase confusion
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
Official licensing app of the Michigan Department of Natural Resources. Michigan DNR Hunt Fish is an official application of the Michigan Department of Natural Resources. Michigan DNR Hunt Fish is a way for Michigan’s hunters, anglers, and outdoor enthusiasts to purchase and view licenses, review licensing information, review regulation information, view DNR communications and complete harvest reports through your mobile device. Features include: Easy Account Access - create an account or sync with your current account(s) in the Michigan DNR eLicense System. Convenient Purchasing - purchase hunting and fishing licenses, permits, duck stamps, endorsements, and DNR trail permits. Viewing Purchase History - view current and past licenses and permits. Reporting a Harvest - report your harvest right from your mobile device. Maps - find information on and get directions to Michigan state forest campgrounds, state parks, boat ramps, and shooting ranges. Resources - download and view the latest hunting and fishing digests, weekly fishing report, information on seasons and dates, and other popular resources for outdoor enthusiasts. Weather - before heading out on the water or in the field, view the current weather conditions and sunrise/sunset times. The application requires internet access through Wi-Fi or a cellular wireless connection to access features like purchasing and harvest reporting, viewing preference point and chance totals, drawing results, educational safety certificates, and enrolling in Auto-Renewal.
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
Axios
React Query
Shadcn/UI
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.
