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
DTN: Ag Weather Tools
The DTN Ag Weather Tools app for the Apple iPhone — enhanced to provide additional mobile decision support.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 2.6
24 ratings · Below Average
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.
Build your own version
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/
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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 DTN: Ag Weather Tools: map the core Weather 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
Focus on reliable data sources and user feedback for improvements.
Assumption to check: Inaccurate weather data compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Enhance UI design for better user experience and clarity.
Assumption to check: Poor user interface and navigation
Validate with people who use this workflow before building.
Hypothesis 3
Add features for users to customize their dashboard and alerts.
Assumption to check: Limited personalization options
Validate with people who use this workflow before building.
Hypothesis 4
Implement rigorous testing and update strategies to improve app stability.
Assumption to check: Frequent crashes and bugs
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
The DTN Ag Weather Tools app for the Apple iPhone — enhanced to provide additional mobile decision support. The agriculture industry’s first weather app delivers exclusive GPS-based roaming alerts, top-rated forecasts, touch screen interactive weather displays and unique ag commentary. This app helps producers improve operational planning with highly-local farm-level forecasts, and gives them advance notice to weather risks via customized alerts. Highlights: • Gauge — track current and historical precipitation and evapotranspiration data with farm-level precision. • Patented roaming alerts — create custom alert thresholds for forecasted and observed weather conditions, precipitation amounts, dangerous storm attributes, and more. Our app automatically updates your preferences with our exclusive, location-sensitive roaming alert technology. This ensures that you will be the first to know when weather will impact your current location. • DTN WindMonitor® — receive advanced notice on your Apple iPhone to let you know when winds will be too strong for spraying. • PrecipTimer® — know in advance when precipitation will start, how strong it will be, and what time it will end at your farm. • Interactive weather maps — access comprehensive layered satellite maps, animated radar, future radar, storm corridors, temperature, dew point, humidity, wind direction, and precipitation amounts. • Site-specific weather forecasts — get 36 hours of detailed hourly forecasts and 15 days of long-range forecasts — continually updated for the most current information. • Observed conditions — site-specific data for the temperature, humidity and wind that has impacted your farm. • Monitor multiple locations — receive alerts for where you are working as well as other locations of concern • Agriculture weather news & analysis — stay up to date with detailed weather-focused content from DTN’s meteorologists and journalists — including a daily market weather outlook video. Subscription Information: - A 30 day free trial is available to all users of the app - When you decide to subscribe you can get 1 month for $16.99 or a full year for $169.99 - Payment will be charged to iTunes Account at confirmation of purchase - Subscription will NOT automatically renew. You will be asked to resubscribe at the end of each term - No cancellation of the current subscription is allowed during active subscription period - Any unused portion of a free trial period will be forfeited when the user purchases a subscription The DTN Ag Weather Tools app for the Apple iPhone is the most powerful weather app available for producers. Designed to help producers monitor weather for their farms, it can save them thousands of dollars by managing schedules more effectively. Note: Continued use of GPS running in the background can dramatically decrease battery life.
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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.
