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.
Firesource’s features:
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Firesource - Live Wildfires: 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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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
Assumption to check: Lagging map updates during high traffic times
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited filter options for fire types
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent alert notifications
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community reporting features
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Firesource’s features: ◦ Live fire feed - both on map and in scrollable menu ◦ Local and national fire incidents - news updates and reports ◦ Fire perimeters - access all realtime fire perimeters at once with information about fire growth and progress, including acreage, containment, personnel, fire cause, and fire behavior ◦ Report a fire - instantly inform other users of a nearby fire by pressing the + button, taking a picture of the fire, and submitting ◦ Air quality - see the effects of recent fires by viewing realtime air quality measurements across the country ◦ Satellite fire detections can indicate new fires and how current fires are spreading National Fires (InciWeb, Cal Fire, IRWIN): InciWeb is an interagency incident management system run by the National Wildfire Coordinating Group. InciWeb collects wildfire incident data from several agencies across the United States and provides all of this data together in several feeds. Firesource presents wildfire incidents reported by InciWeb in real time, providing the fire’s location and detailed status. Learn more about InciWeb at their website: https://inciweb.nwcg.gov/. Learn more about Cal Fire, which also provides incident information, at their website: https://www.fire.ca.gov. Learn more about IRWIN, the data hub of fire reports, at https://www.forestsandrangelands.gov/WFIT/applications/IRWIN/. National Fires (Perimeters): Perimeter data is provided by the Wildland Fire Interagency Geospatial Services (WFIGS) Group and hosted in the National Interagency Fire Center ArcGIS Online Organization (The NIFC Org). Firesource displays fire perimeters and descriptions of their progress in the ‘National Fires’ tab of the menu, with this information updated on a regular basis. Learn more about the NIFC at their website: https://www.nifc.gov User-Reported Fires: Allowing app users to report a fire and immediately inform other users is an essential aspect of Firesource. To report a fire, press the yellow + button in the top right corner of the map, select the type of fire (vehicle fire, forest fire, terrain fire, structure fire), take a photo of the fire, and press submit. To ensure the validity of fire reports, the user must take a photo of the fire and cannot access Camera Roll to select a picture. Please note that submitting a fire report automatically creates the report at the user’s location, to further ensure that the fire is local and valid. When viewing user-reported fires in the feed, other users can ‘rate’ the fire report by confirming that it is active, contained, or a spam reporting. Air Quality: Air quality measurements from across the United States are collected from AirNow.gov, which provides national air quality data using the Air Quality Index (AQI). This data is color-coded to provide information about health concerns due to PM2.5 pollutants. Satellite-Detected Fires: Thermal hotspot detections are displayed and collected from NASA’s Moderate Resolution Imaging Spectroradiometer (MODIS), which is an instrument on the Terra and Aqua satellites. Information provided from MODIS about each detection includes brightness (brightness temperature in Kelvin of a fire pixel) and confidence (quality of fire pixel). These fire detections are extremely useful, as they can indicate new fires and fire spread. Learn more about MODIS at their website: https://modis.gsfc.nasa.gov Firesource is not affiliated with any government agencies. Firesource is only available for iPhone and iPad in the United States, Canada, and Australia. Privacy Policy: https://firesourceapp.weebly.com/privacy-policy.html Learn more and contact us at https://firesourceapp.weebly.com/
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.