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.
Lightning strikes the earth around 100 times per second
$2.99 · 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 TornadoSpy+: 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: Users report slow updates on alerts
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inaccurate location-based alerts
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited customization in notification settings
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface feels cluttered
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.
Lightning strikes the earth around 100 times per second. Are you sure that the tornado sirens in your area will be in working order when the time comes? Stay safe with TornadoSpy+ featuring AccuSpy™ technology that gives you the power to report and view official and user spotted tornadoes or hail instantly. It contains U.S. animated radar maps, push alerts, overlayed maps, warnings, tornado forecast maps, and radar snapshots of tornado sighting areas. - Featured in the Joplin Globe on 5/20/12 - Featured on the front page of USAToday on 5/31/11 - Featured in the Fort Worth Star-Telegram on 6/16/11 - Over 150,000 confirmed alerts sent out - Over 130,000 TornadoSpy spotters in addition to professional spotters from the national weather service. On 5/10/10, a user spotted the Oklahoma City tornado 20 MINUTES before the NOAA report, which gave other users valuable lead time to escape the storm. This is a frequent occurrence since user reports are submitted and viewable immediately. Sightings are filtered through state-of-the art AccuSpy™ technology to prevent false alerts and only send you the most accurate sightings. Features: - Track tornado/hailstorm movement worldwide on the built-in map - Report nearby tornadoes/hail with a simple touch - View HD radar, tornadoes, and hail overlayed on interactive maps simultaneously - Includes official tornado reports as well as tornado warnings from National Weather Service storm spotters - Real Time Push alerts - Email and text alerts - Share and view tornado/hail photos in seconds - Filter sightings by spotter ratings - View previous tornadoes/hail sightings - Write storm report notes - Users can rate sightings submitted by other users - Verify sighting reports with radar snapshots near report areas. - Radar loops - Tornado forecasts - Warning maps - AccuSpy™ state-of-the art storm spotting In-app Purchases - US National Weather Radio - Animated Radar using FAST technology (TornadoSpy Exclusive) - TornadoSpy One which is an optional, auto-renewable yearly subscription for roughly $0.99 a year and includes faster search times, ad removal and animated radar. The subscription can be cancelled at any time. Terms of Service: http://www.justintimeapps.com/policies.html Download now, and become a part of the fastest and largest worldwide storm spotting network. Demo video can be seen at justintimeapps.com/ss.html
Written user reviews are not shown here. Check current App Store reviews >
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.