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
FieldCheck FL
FieldCheck FL is an original app independently developed by Yulian Perez Leyva
$2.99 · In-app purchases
PRICE
$2.99
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 included15 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 FieldCheck FL: 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
Include graphs and insights on performance trends.
Assumption to check: Lack of detailed feedback on activities
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize metrics and types of activities.
Assumption to check: Limited customization options for activity tracking
Validate with people who use this workflow before building.
Hypothesis 3
Integrate sharing capabilities to social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Clearly define and market premium features to enhance user experience.
Assumption to check: No premium features differentiation
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
FieldCheck FL is an original app independently developed by Yulian Perez Leyva. Not affiliated with any other hunting app. VERSION 2.0 — Major Update with 10 new features. Real-time Florida hunting legality by GPS location. Check deer, turkey, hog, waterfowl, dove, snipe, squirrel, rabbit and more against official FWC 2025-2026 regulations instantly. Drop a pin anywhere in Florida or use GPS to check all 13 species simultaneously against the nearest WMA zone. Get a color-coded results board showing what's open, what's closed, and when the next season opens. NEW IN VERSION 2.0: • Draw and save hunting area polygons with acreage calculation • Place typed markers — tree stands, blinds, feeders, trail cameras, food plots and more • Property boundary overlays via ArcGIS parcel data • Historical aerial imagery (Current, 2020, 2015, 2010) • Offline map tile caching for no-signal areas • Share GPS coordinates with hunting partners • Sunrise/sunset shooting hours at your exact location • Live weather conditions at your pin • Harvest log with species, weight, antler points and notes • My Spots tab to manage all markers and drawn areas FEATURES: • GPS location or tap-to-pin on interactive map • 13 species: deer, turkey, hog, waterfowl, dove, snipe, woodcock, rail, crow, squirrel, rabbit, quail, raccoon • FWC 2025-2026 official season dates for all 4 Florida zones (A/B/C/D) • 49 major Florida WMAs with GPS directions via Apple Maps • Season notification alerts for open and upcoming seasons • AI field insights powered by Claude • Road, satellite, topo, and dark map layers • Works offline for season data DISCLAIMER: FieldCheck FL is an educational tool — NOT legal hunting advice. Always verify at myfwc.com. The hunter is solely responsible for compliance with all laws.
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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.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
react-navigation
react-native-paper
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.
